Underrail Wiki - User contributions [en]

Captain Broderick

2026-02-16T19:11:38Z

Harperfan7:

{{Character Infobox
| name = Broderick
| type = important
| portrait = cmd2_l.png
| background = Shacks.png
| level = 14
| health = 230
| image = Captain Broderick model.png
| faction = Black Eels
| roles = Ferry service
| location = [[Junkyard - Docks]]
| abilities = [[Opportunist]]
| quests =
}}

'''Broderick''' is a black eel boat captain in Junkyard docks. He provides boat [[fast travel]] services. His boat is the only way to reach [[Silent Isle]] before you get access to a jet ski. He wields an assault rifle.

== Player interactions ==

=== Quests ===
* [[Retrieve the lost cargo]]: Pick up some cargo from Silent Isle.

=== Fast travel ===
His boat can initially take you to [[South Gate Station]] and [[Silent Isle]]. After the earthquake damages are repaired, travel to [[Core City]] also becomes possible, and once you have checked out the situation in [[Camp Hathor]], travel to Hathor becomes available.

His fee of 10 charon for the nearby destinations and 20 charons for Core City.

{{NPCs navbox}}
[[Category:Characters]]
[[Category:Global entities]]
[[Category:Junkyard characters]]
[[Category:Black Eels]]

Faceless Gaunt

2026-01-18T16:20:54Z

Harperfan7:

{{Stub}}
{{Character Infobox
| name = Faceless Gaunt
| type = generic
| portrait = flst_l.png
| background =
| level =
| health = 400
| shield =
| psipool = 100 (+16)
| image = Faceless Gaunt.png
| faction = [[The Faceless]]
| roles = Stealthy assassin
| location = [[Deep Caverns]] [[Warehouse Block 2]] [[Talos Outpost]]
| quests =
| loot = [[Faceless Mask Fragment]] [[Empty Infusion Tank]] [[Black Dragon Poison]] [[Burrower Poison]] [[Cave Ear Poison]] [[Crawler Poison]] [[Spirit Poison]]
| abilities = [[Infusion]] buffs Inflicts random poison on attack [[Expose Weakness]] [[Hypertoxicity]] [[Pseudo-spatial Projection]] [[Psi-cognitive Interruption]] [[Uncanny Dodge]]
|
|Combat stats section:
| damage =
| range = Melee
| actionpoints = 50
| movepoints =
| detection =
| initiative = 35
|
|Resistances section:
| mechanical =
| heat =
| cold =
| electricity =
| acid =
| energy =
| bio =
}}

'''Faceless Gaunt'''.

== Description ==
The scouts and assassins of the faceless. They prefer to flank and ambush opponents who are engaging other faceless. They are armed with a special arm blade that can inflict a variety of poisons.

== Fighting tactics ==

{{Enemies navbox}}
[[Category: Characters]]
[[Category: Humanoids]]
[[Category: The Faceless]]

Rag

2025-12-28T02:57:32Z

Harperfan7:

{{heavyduty}}
{{Character Infobox
| name = Gale
| type = important
| portrait = Wrk3 l.png
| background = Shacks.png
| image = Rag.png
| faction = [[Zoners]]
| roles = [[Merchant]]
| location = [[Rag's Boutique]]
| quests =
| loot = [[Steel Crowbar]]
| level =
| health = 380
| shield =
| psipool =
| abilities = [[Expose Weakness]] [[Opportunist]] [[Sprint]]
}}

'''Rag''' is a merchant that owns a boutique store on the edge of the [[Drop Zone]]. He fights with a [[Steel Crowbar]].

==Player Interactions==
Rag is not particularly talkative and if the player speaks to him while wearing any type of Oligarch faction armor, he will permanently refuse to interact with you.

If you trigger hostilities with any of the Core City factions (Praetorian, Coretech, JKK or civilians), Rag will show you his secret basement where it is revealed that he has been stockpiling various weaponry and ammo. He'll then offer support with 'wrecking the cogs' and give you [[Punisher]] unique grenade launcher if you agree to his offer as well as let you access the weapon locker behind him, containing most notably [[Machine Gun Technical Manuals, by Eugene Gatling]].

Alternatively, player can ask [[Jon the Beautiful]] about Rag in exchange for an [[Under Pie]]. You can then confront Rag in his store and with 85 effective [[Persuasion]] or 65 effective [[Mercantile]] skill convince him to show you his basement for the same effect as above.

== Trader inventory ==
===Cloth===
{{Store inventory
| sells =
* [[Groin Guard]]
* [[Lifting Belt]]
* [[:Category:Bolts of cloth|Bolts of cloth]]
* [[:Category:Padding|Padding]]
* [[Boot Spring]]s
* [[Gas Mask]]
| cash =
* 200 [[Stygian Coins]]

| buys =
* [[:Category:Foodstuffs|Foodstuffs]]
* [[:Category:Medicine|Medicines]]
* [[:Category:Bullets|Bullets, shells or launcher grenades]] (Always)
* [[:Category:Luxury|Luxury Items]] (Always)

| mercantileskillchecks =
| specialmerchandise =
}}
===Weapons===
{{Store inventory
| sells =
* Random weapons and components
* [[Gas Mask]]
| cash =
* 200 [[Stygian Coins]]

| buys =
* [[:Category:Foodstuffs|Foodstuffs]]
* [[:Category:Medicine|Medicines]]
* [[:Category:Bullets|Bullets, shells or launcher grenades]] (Always)
* [[:Category:Luxury|Luxury Items]] (Always)

| mercantileskillchecks =
| specialmerchandise =
}}

==Trivia==
He is a reference to the Surplus Store Owner from the [[wikipedia:Falling Down|Falling Down]] movie.

{{NPCs navbox}}
[[Category: Characters]]
[[Category: Core City characters]]
[[Category: Blueprints/buyers]]
[[Category: Bullets/buyers]]
[[Category: Foodstuffs/buyers]]
[[Category: Luxury/buyers]]
[[Category: Medicine/buyers]]

Rag

2025-12-28T02:56:30Z

Harperfan7:

{{heavyduty}}
{{Character Infobox
| name = Gale
| type = important
| portrait = Wrk3 l.png
| background = Shacks.png
| image = Rag.png
| faction = [[Zoners]]
| roles = [[Merchant]]
| location = [[Rag's Boutique]]
| quests =
| loot = [[Steel Crowbar]]
| level =
| health = 380
| shield =
| psipool =
| abilities = [[Expose Weakness]] [[Opportunist]] [[Sprint]]
}}

'''Rag''' is a merchant that owns a boutique store on the edge of the [[Drop Zone]]. He fights with a [[Steel Crowbar]].

==Player Interactions==
Rag is not particularly talkative and if the player speaks to him while wearing any type of Oligarch faction armor, he will permanently refuse to interact with you.

If you trigger hostilities with any of the Core City factions (Praetorian, Coretech, JKK or civilians), Rag will show you his secret basement where it is revealed that he has been stockpiling various weaponry and ammo. He'll then offer support with 'wrecking the cogs' and give you [[Punisher]] unique grenade launcher if you agree to his offer as well as let you access weapon locker behind him, containing most notably [[Machine Gun Technical Manuals, by Eugene Gatling]].

Alternatively, player can ask [[Jon the Beautiful]] about Rag in exchange for an [[Under Pie]]. You can then confront Rag in his store and with 85 effective [[Persuasion]] or 65 effective [[Mercantile]] skill convince him to show you his basement for the same effect as above.

== Trader inventory ==
===Cloth===
{{Store inventory
| sells =
* [[Groin Guard]]
* [[Lifting Belt]]
* [[:Category:Bolts of cloth|Bolts of cloth]]
* [[:Category:Padding|Padding]]
* [[Boot Spring]]s
* [[Gas Mask]]
| cash =
* 200 [[Stygian Coins]]

| buys =
* [[:Category:Foodstuffs|Foodstuffs]]
* [[:Category:Medicine|Medicines]]
* [[:Category:Bullets|Bullets, shells or launcher grenades]] (Always)
* [[:Category:Luxury|Luxury Items]] (Always)

| mercantileskillchecks =
| specialmerchandise =
}}
===Weapons===
{{Store inventory
| sells =
* Random weapons and components
* [[Gas Mask]]
| cash =
* 200 [[Stygian Coins]]

| buys =
* [[:Category:Foodstuffs|Foodstuffs]]
* [[:Category:Medicine|Medicines]]
* [[:Category:Bullets|Bullets, shells or launcher grenades]] (Always)
* [[:Category:Luxury|Luxury Items]] (Always)

| mercantileskillchecks =
| specialmerchandise =
}}

==Trivia==
He is a reference to the Surplus Store Owner from the [[wikipedia:Falling Down|Falling Down]] movie.

{{NPCs navbox}}
[[Category: Characters]]
[[Category: Core City characters]]
[[Category: Blueprints/buyers]]
[[Category: Bullets/buyers]]
[[Category: Foodstuffs/buyers]]
[[Category: Luxury/buyers]]
[[Category: Medicine/buyers]]

Rag

2025-12-28T02:56:03Z

Harperfan7:

{{heavyduty}}
{{Character Infobox
| name = Gale
| type = important
| portrait = Wrk3 l.png
| background = Shacks.png
| image = Rag.png
| faction = [[Zoners]]
| roles = [[Merchant]]
| location = [[Rag's Boutique]]
| quests =
| loot = [[Steel Crowbar]]
| level =
| health = 380
| shield =
| psipool =
| abilities = [[Expose Weakness]] [[Opportunist]] [[Sprint]]
}}

'''Rag''' is a merchant that owns a boutique store on the edge of the [[Drop Zone]]. He fights with a [[Steel Crowbar]].

==Player Interactions==
Rag is not particularly talkative and if the player speaks to him while wearing any type of Oligarch faction armor, he will permanently refuse to interact with you.

If you trigger hostilities with any of the Core City factions (Praetorian, Coretech, JKK or civilians), Rag will show you his secret basement where it is revealed that he has been stockpiling on various weaponry and ammo. He'll then offer support with 'wrecking the cogs' and give you [[Punisher]] unique grenade launcher if you agree to his offer as well as let you access weapon locker behind him, containing most notably [[Machine Gun Technical Manuals, by Eugene Gatling]].

Alternatively, player can ask [[Jon the Beautiful]] about Rag in exchange for an [[Under Pie]]. You can then confront Rag in his store and with 85 effective [[Persuasion]] or 65 effective [[Mercantile]] skill convince him to show you his basement for the same effect as above.

== Trader inventory ==
===Cloth===
{{Store inventory
| sells =
* [[Groin Guard]]
* [[Lifting Belt]]
* [[:Category:Bolts of cloth|Bolts of cloth]]
* [[:Category:Padding|Padding]]
* [[Boot Spring]]s
* [[Gas Mask]]
| cash =
* 200 [[Stygian Coins]]

| buys =
* [[:Category:Foodstuffs|Foodstuffs]]
* [[:Category:Medicine|Medicines]]
* [[:Category:Bullets|Bullets, shells or launcher grenades]] (Always)
* [[:Category:Luxury|Luxury Items]] (Always)

| mercantileskillchecks =
| specialmerchandise =
}}
===Weapons===
{{Store inventory
| sells =
* Random weapons and components
* [[Gas Mask]]
| cash =
* 200 [[Stygian Coins]]

| buys =
* [[:Category:Foodstuffs|Foodstuffs]]
* [[:Category:Medicine|Medicines]]
* [[:Category:Bullets|Bullets, shells or launcher grenades]] (Always)
* [[:Category:Luxury|Luxury Items]] (Always)

| mercantileskillchecks =
| specialmerchandise =
}}

==Trivia==
He is a reference to the Surplus Store Owner from the [[wikipedia:Falling Down|Falling Down]] movie.

{{NPCs navbox}}
[[Category: Characters]]
[[Category: Core City characters]]
[[Category: Blueprints/buyers]]
[[Category: Bullets/buyers]]
[[Category: Foodstuffs/buyers]]
[[Category: Luxury/buyers]]
[[Category: Medicine/buyers]]

SPG-7

2025-12-21T15:26:56Z

Harperfan7: /* Refurbishment */

{{stub}}
{{heavyduty}}
The '''SPG''' is a unique [[Rocket Launchers|rocket launcher]].

{{Tabbed infobox
| tab1 = SPG-7
| tab2 = Refurbished SPG-7
}}

== Description ==
{{expand section}}

== Location ==
Sold by [[Becket]].

== Ammo ==
{{AmmoGroup|40mm Rockets}}

== Refurbishment ==
You need 700 charons (can be reduced with the [[Grenade_Launcher_Technical_Manuals,_by_Yakov_Piek|grenade launcher technical manual]], the time required is also reduced), an airburst scope, and an ergonomic firing mechanism.

== Trivia ==
{{expand section}}

== History ==
* [[1.3.0.15]] (Heavy Duty) - Introduced

{{Weapons navbox}}
[[Category:Items]]
[[Category:Weapons]]
[[Category:Guns]]
[[Category:Rocket Launchers]]

Blueprint: Tabi Boots

2025-11-24T20:38:21Z

Harperfan7:

{{infobox item
| image = Blueprint: Tabi Boots.png
| itemquality = normal
| name = Blueprint: Tabi Boots
| type = Blueprint
| description = Contains instructions on how to create a pair of tabi boots.
| capabilities = Use: Download blueprint into your wristpad.
| weight = 0.05
| value = 300
| description2 = Tabi Boots are light form of footwear that offer little to no mechanical protection from attacks, but allow for agile movement. They can be crafted from either cloth or leather.
| component1 = Material
| component2 = Soles (x2)
| datafile = Blueprints\TabiBoots.item
}}

Produces a pair of [[Tabi Boots]]. This blueprint was introduced in version [[0.1.11.0]].

== Required skills ==
* [[Tailoring]] (skill level needed depends on component quality)
* [[Chemistry]] (only for [[Mutated Dog Leather]])
* [[Biology]] (only for sea serpent skins)

== Supported parts ==
; Material
{{ComponentGroup|Leather}}{{ComponentGroup|Cloth}}

; Soles (x2)
{{ComponentGroup|Soles}}

== Related feats ==
* [[Clothier]] (+20% fabric quality)
* [[Skinner]] (+20% leather quality)

== Locations ==
* Sold by [[Blaine]].
* Sold by [[Deacon]] in [[Rail Crossing]].
* Sold by [[Lost Vault Trader]].
* Sold by [[Ola]].
* Sold by [[Constantine]].
* Rarely sold by [[Colton]].
* Rarely sold by [[Gort]].
* Rarely sold by [[Old Jonas]].
* Often (not guaranteed) found in a file cabinet on the first floor of GMS.

{{Blueprint navbox}}
[[Category:Items]]
[[Category:Blueprints|Tabi Boots]]

SGS Credits

2025-11-23T18:47:35Z

Harperfan7:

{{Infobox item
| image = SGS Credits.png
| itemquality = normal
| name = SGS Credits
| type = Currency
| description = This is the internal currency of the South Gate Station.
| value = 10
| datafile = Currency\SGSCredits.item
}}

'''SGS Credits''' are a unit of currency.

== Description ==
Unlike other less powerful stations in the south, [[South Gate Station]] has its own internal currency. This currency is common around SGS and can be acquired in a number of ways, such as working for the South Gate community and selling unwanted goods in South Gate Station.

Outside South Gate Station, however, [[Stygian Coin]]s are commonly used and SGS credits are accepted only by a few nearby traders.

Every new character starts the game with a free set amount of SGS credits and is free to spend it how they wish.. just remember to spend it wisely!

=== Currency exchange ===
You can exchange SGS credits to Stygian coins at [[Colton]] in Junkyard docks. The exchange rate is 5 SGS credits to 1 coin. This rate can be lowered to 4 SGS credits to 1 coin with 40 active [[Mercantile]] skill.

[[Blaine]], [[Jack Quicksilver]], and [[Old Jonas]] also carry and accept both SGS credits and Stygian coins, allowing limited currency exchange at a fair rate.

{{Currency navbox}}
[[Category:Items]]
[[Category:Currency]]

Perception

2025-06-30T22:33:53Z

Harperfan7:

{{Quote
| Perception represents character's ability to discern objects from far away as well as to notice hidden things in their vicinity. It helps the character to use ranged weapons more effectively, as well as detect hidden objects, passages and creatures.
| In-game description
}}

== Details ==
'''Perception''' determines your character's overall awareness and effectiveness with ranged weapons. It also affects your character's chance to detect hidden passages, objects or stealthed creatures and NPCs. It does not increase your vision or visible range. Perception does not directly affect your chance to hit, but rather increases your ranged weapon skills, which in turn increases your chance to hit with ranged weapons. Melee weapon hit rate is unchanged but increased with melee skill (through strength or dexterity). No items require perception to be used or equipped.

High perception score is important for characters who wish to use ranged weapons or find traps, stealthed enemies and secrets.

{{Synergies|
* [[Guns]]
* [[Crossbows]]
|
* [[Detection]]
* Finding secrets (uses perception score instead of detection)
}}

== Related feats ==
See [[:Category:Perception feats]].
* [[Snooping]] increases perception by 3 for the purposes of finding secrets.
* [[Increased Perception]] veteran feat increases it by 2.

== Related items ==

=== Headwear ===
* {{Itemlink|Adaptive Goggles}} (+1 Perception on equip)
* {{Itemlink|Cyclop's Eye}} (+1 Perception on equip)
* {{Itemlink|Synesthetic Refocus}} (+2 Perception when equipped and character is focused, -2 Perception when character is unfocused)
* {{Itemlink|Synesthetic Refocus|Synesthetic Refocus(Hexagon)}} (+3 Perception when equipped and character is focused, -3 Perception when character is unfocused)
* {{Itemlink|Metal Helmet}}s (-1 Perception on equip)
* {{Itemlink|Aegis Sec-trooper Helmet}}{{expedition-inline}} (-1 Perception on equip)
* {{Itemlink|Praetorian Lawgiver}} (-1 Perception on equip)
* {{Itemlink|Gas Mask}} (-2 Perception on equip)
* {{Itemlink|Tchortist Bioscrubber}} (-2 Perception on equip)
* {{Itemlink|Perceptual Isolation Helmet}}{{heavyduty-inline}} (Perception set to 1)

=== Suit ===
* {{Itemlink|Tchortist Noble Robe}} (-1 Perception on equip)
* {{Itemlink|Tchortist Rassophore Armor}} (-1 Perception on equip)
* {{Itemlink|Biohazard Suit}} (-2 Perception on equip)
* {{Itemlink|Fire Proximity Suit}} (-2 Perception on equip)
* {{Itemlink|Blast Suit}} (-2 Perception on equip)
* {{Itemlink|Robe}} (-2 Perception on equip)
* {{Itemlink|Tchortist Robe}} (-2 Perception on equip)
* {{Itemlink|Tchortist Vathosphore Armor}} (-1 Perception on equip)

=== Food ===
* {{Itemlink|All-in}} (temporarily +3 all base abilities)
* {{Itemlink|Boolean}} (temporarily -3 all base abilities)
* {{Itemlink|Mushroom Salad}} (temporary +1 Perception)
* {{Itemlink|Junkyard Surprise}} (temporary random base ability effect, can only decrease Perception)
* {{Itemlink|Clean Deal}} (temporary -1 Perception)
* {{Itemlink|Mushroom Brew}} (temporary -2 Perception)
* {{Itemlink|Kzozel}} {{expedition-inline}} (temporary -2 Perception)
* {{Itemlink|Stalagdrop}} (temporary -1 Perception)
* {{Itemlink|White Dude}} (temporarily -2 Perception)
* {{Itemlink|Cave Tear}} (temporary -3 Perception)

=== Drugs ===
* {{Itemlink|Third Eye (drug)|Third Eye}}{{expedition-inline}} (temporary +3 Perception for the purpose of finding secrets)
* {{Itemlink|Bioluminous Marsh Honey}}{{expedition-inline}} (temporary +2 Perception)
* {{Itemlink|Supersoldier Drug (medicine)|Supersoldier Drug}} (temporary +2 Perception)
* {{Itemlink|The Juice}} (temporary +1 Perception)

== Perception checks ==
[[File:Tilemarker Perception.png|left]]

Discovering secret areas is based on [[Perception]] score alone, unlike detecting traps and stealthed characters, which is based on [[Detection]]. Discovering some secrets requires prior knowledge instead of Perception score.

In addition to secrets, [[Underrail: Expedition]] expansion added visible in-world Perception checks similar to [[Strength]], [[Dexterity]] and [[Agility]] checks.

=== Base game ===

{{incomplete list}}

{| class="sortable wikitable"
|-
! Location !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| Lower Caves, [[South Gate Outposts]], Area '''South outposts''', inside NW outpost ([[:File:Forlornstations1.png|Forlornstations1.png]])
| Trapdoor
| 6 Perception
| [[:File:ForlornStations4_1.png|connects]] the two south outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''South outposts''', inside NE outpost ([[:File:Forlornstations1.png|Forlornstations1.png]])
| Trapdoor
| 6 Perception
| [[:File:ForlornStations4_1.png|connects]] the two south outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''East outpost''', inside the outpost ([[:File:ForlornStations4.png|ForlornStations4.png]])
| Trapdoor
| 7 Perception
| [[:File:ForlornStations1_1.png|connects]] east and northwest outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''East outpost''', northeast tunnels ([[:File:ForlornStations4.png|ForlornStations4.png]])
| Trapdoor
| 8 Perception
| [[:File:ForlornStations1_1.png|connects]] east and northwest outposts
|-
| [[Under-passages]] Lower Passages Dungeon, ([[:File:Dun lup-a.png|Dun lup-a.png]])
| Passage
| Quest trigger or 11 Perception
| entrance to the next area in the [[Camera problems]] quest
|-
| [[Under-passages]] area 1, near SGS ([[:File:lup-a1.png|lup-a1.png]])
| Door
| 7 Perception
| secret room along east wall, [[Strange Comm Device]] oddity
|-
| Lower Underrail, [[GMS compound level 1]] ([[:File:GammaCompound1.png|GammaCompound1.png]])
| Safe
| 7 Perception
| secret safe in room near southwest corner
|-
| Lower Underrail, [[GMS compound level 2]] ([[:File:GammaCompound2.png|GammaCompound2.png]])
| Secret passage
| 7 Perception
| secret room along east wall, [[Old Data Medium]] oddity
|-
| Lower Underrail, [[GMS compound level 3]] ([[:File:GammaCompound3.png|GammaCompound3.png]])
| First aid box
| 7 Perception
| SW room, hidden under couch, medicine including an [[Advanced Health Hypo]]
|-
| [[Lower Caves]], east from [[GMS compound level 3]] ([[:File:cv12.png|cv12.png]])
| Secret crawlspace
| 8 Perception
| leads to the back entrance of the raider [[:File:Cv14.png|base]]
|-
| [[Lower Caves]], raider [[:File:Cv14.png|base]]
| Adrenaline shot
| 8 Perception
| under [[Gerhard Page]]'s bed
|-
| [[Lower Caves]] between Mushroom Cove and Junkyard ([[:File:jyt1.png|jyt1.png]])
| Underwater rock bridge
| 8 Perception
| leads to a small island
|-
| Lower Caves, [[Siphoner Pools (Lower Caves)|Siphoner Pools]], northeast ([[:File:jyt3.png|jyt3.png]])
| Underwater rock bridge
| 8 Perception
| leads to the northeast corner of the cave
|-
| Lower Caves, [[Water Treatment Facility]]
| Plasma cell
| 6 Perception
| under a table in the power room
|-
| Lower Caves, [[Water Treatment Facility]]
| Shotgun shells
| 8 Perception
| on top of a locker in the SE room on the upper level
|-
| Lower Caves, [[Water Treatment Facility]]
| First-aid kit
| 7 Perception
| in the SE room on the lower level, random medicine
|-
| Lower Caves, [[Water Treatment Facility]]
| Hidden opening
| 9 Perception
| secret compartment in the ventilation system, Deathstalker corpse with [[Crawler's Eye]] oddity
|-
| Lower Caves, [[Water Treatment Facility]]
| Secret crawlspace
| 7 Perception
| along north wall on the lower level, leads to secluded room with loot
|-
| [[Silent Isle]], southeast ([[:File:si1.png|si1.png]])
| Underwater rock bridge
| 7 Perception
| leads to a small island with a corpse with random [[Mutated Dog Leather Armor]]
|-
| Junkyard, Security control room of [[Depot A]] east area ([[:File:ojy2.png|ojy2.png]])
| Secret door
| 10 perception
| shortcut bypassing the turrets
|-
| [[Lower Underrail]] area 6, Lunatic camp ([[:File:lu-a6.png|lu-a6.png]])
| Hidden stash
| 8 Perception
| secret footlocker near rock pile
|-
| [[Upper Caves]], south of Milton's camp ([[:File:lux-a10.png|lux-a10.png]])
| Underwater rock bridge
| 7 Perception
| shortcut between the north and south bank of the river
|-
| [[Upper Caves]], ironhead camp, two zones north of the [[Bunker (Upper Caves)|Bunker]] ([[:File:Lux-b16.png|Lux-b16.png]])
| Hidden stash
| 10 Perception
| NW corner of map, through the backside of the camp, contains a [[Jumping Bean]] and random tabi boots
|-
| [[Upper Caves]], [[Synesthete camp]], under the {{spoiler|Oculus}}
| Hidden stash
| 11 Perception
| in the rock next to the Synesthete, contains roughly 300 charons
|-
| [[Upper Caves]], misty river north of Hecate caves entrance
| Underwater rock bridge
| 9 Perception
| leads to a box containing a [[Niobium Piercing Set]]
|-
| [[Lost Vault]] entrance
| Hidden ventilation shaft
| 9 Perception
| leads into the shack behind the trader
|-
| [[Lost Vault]] interior
| Hidden first-aid box
| 7 Perception
| random medicine
|-
| [[Lost Vault]] interior
| Hidden footlocker
| 7 Perception
| in room along north wall, contains [[Circular Wave Amplifier]]
|-
| [[Lost Vault]] interior
| Hidden bag
| 10 Perception
| in the northern room along west wall, accessible only with 11 [[Strength]], contains two advanced mechanical and electronic repair kits and a lighter
|-
| [[Lost Vault]] interior
| Hidden sack
| 9 Perception
| South-western room, accessible only with 11 [[Agility]], contains [[Greater Fusion Cell]], two [[Fusion Cell]]s and two [[Plasma Cell]]s
|-
| [[Lower Caves]], south of [[Crossroad Caves]] ([[:File:cv2.png|cv2.png]])
| Trapdoor
| 8 Perception
| [[:File:Cv2 1.png|connects]] southwest and southeast corner, locked box with random psionic mentor
|-
| [[Lower Caves]], south of [[Crossroad Caves]] ([[:File:cv2.png|cv2.png]])
| Underwater rock bridge
| 7 Perception
| shortcut bypassing siphoners
|-
| Lower Caves, south of [[Camp Hathor]] ([[:File:cv19.png|cv19.png]])
| Underwater rock bridge
| 7 Perception
| shortcut bypassing rathound nest
|-
| Lower Caves, [[Rathound King Lair]] ([[:File:rkl2.png|rkl2.png]])
| Door
| Quest trigger or 10 Perception
| shortcut leading outside if you offer to [[Kidnap Sarine|kidnap Sarine]] or [[Kill the Rathound King|negotiate a truce]] with Camp Hathor
|-
| Lower Caves, [[Rathound King Lair]], outside ([[:File:cv21.png|cv21.png]])
| Door
| Quest trigger or 15 Perception
| shortcut leading to the lair if you offer to [[Kidnap Sarine|kidnap Sarine]] or [[Kill the Rathound King|negotiate a truce]] with Camp Hathor
|-
| Lower Underrail, [[Abandoned Warehouse]] ([[:File:aw1-1.png|aw1-1.png]])
| Secret crawlspace
| 7 Perception
| secret ventilation shaft section with a footlocker and a rathound
|-
| [[Rail Crossing]], behind bar ([[:File:rc1.png|rc1.png]])
| Secret door
| 7 Perception
| leads to [[Deacon]]'s shop
|-
| Rail Crossing, [[Buzzer's Shop]]'s ventilation shafts ([[:File:rc_shop 3.png|rc_shop 3.png]])
| Hidden Ventilation Shaft
| 7 Perception
| secret ventilation shaft section with [[Hardware Bug]]
|-
| Lower Underrail, [[Dude's vision|The warehouse from Dude's vision]] ([[:File:lu-b4.png|lu-b4.png]])
| Secret crawlspace
| Quest trigger
| leads to the lower level of the warehouse during Dude's quest
|-
| [[Free Drones Base]], east room
| Trapdoor
| 11 Perception
| can't be opened; handle breaks
|-
| [[Upper Caves]], north from the Hanging Rat bar ([[:File:lux-c2.png|lux-c2.png]])
| Hidden stash
| 11 Perception
| secret stash inside rock pillar (not visible on the linked map)
|-
| Foundry, Evelyn's home ([[:File:fo3.png|fo3.png]])
| Trapdoor
| 10 Perception
| [[:File:Fo3-tunnel.png|connects]] Evelyn's house and bunker
|-
| Foundry, Evelyn's home ([[:File:fo3.png|fo3.png]])
| Secret crawlspace
| Quest trigger
| leads to Evelyn's [[:File:Fo-bunker.png|bunker]] if a male player character [[Foundry murders|has a drink]] with her
|-
| [[Lower Underrail]], cave west of [[Foundry]] ([[:File:lu-b22x.png|lu-b22x.png]])
| Hidden stash
| 10 Perception
| secret stash inside rock pillar
|-
| Core City, SW middle level ([[:File:Cc17.png|Cc17.png]])
| Ladder
| 14 Perception
| leads to Phreak's hideout, utility section electric coil area
|-
| Core City, utility section ([[:File:Cc_utility.png|Cc_utility.png]])
| Squeeze through gap in pipes
| 11 Perception (can be bypassed with night vision mode of the [[Goggles]])
| leads to Phreak's hideout, boilers area
|-
| Core City, [[Utility Facility]] steam area
| Junk pile
| 7 Perception
| Contains [[TiChrome Spikes]] and a [[Boot Spring]], NW corridor
|-
| Core City, [[Utility Facility]] steam area, through the door east of the steam console, near Modified Industrial Bot
| Plasma cell
| 10 Perception
| [[Plasma Cell]] and a [[Plasma Core]]
|-
| Core City, [[Utility Facility]] electric coil area
| Phreak's laptop
| Quest trigger
| laptop hidden in trash pile in his hideout, available after his disappearance
|-
| Core City, [[Utility Facility]] electric coil area, SE room on 2nd floor
| Bag
| 8 Perception
| random knife
|-
| Core City, [[Drop Zone]] ([[:File:cc15.png|cc15.png]])
| Secret door
| Quest trigger or 6 Perception
| leads to Bogdan's [[:File:Cc15x.png|hideout]], can be found with perception or by learning about it from [[Kupusije]] during [[Find Bogdan]], or with perception after starting [[Sewers generator]]/[[Retrieve ICPD]]
|-
| Core City, inside one of [[Drop Zone]] buildings ([[:File:cc5_1.png|cc5_1.png]])
| Trapdoor
| 8 Perception
| leads to the basement
|-
| Core City, north [[Core City Sewers]] ([[:File:cc_s2.png|cc_s2.png]])
| Door
| 8 Perception
| leads to a secret room on the west side containing some loot
|-
| Core City, northwest [[Core City Sewers]] ([[:File:cc_s6 2.png|cc_s6 2.png]])
| Switch
| Quest trigger
| opens door to Acid Hunters' hideout during the [[Look for Cornell]] quest
|-
| Core City, [[Zaman's Lair]], Underground lake ([[:File:Cc zamanscave2.png|Cc zamanscave2.png]])
| Hidden stash
| 9 Perception
| contains around fifty UN dollars
|-
| Core City, [[Port Zenith]] warehouses
| Hidden safe
| 9 Perception
| Hidden locked safe in [[Captain Wilkins]]s room, contains fifty [[United Stations Dollars]], an energy pistol and a [[Fusion Cell]]
|-
| [[Upper Underrail]], east of [[Notus Living Block]] ([[:File:up3x.png|up3x.png]])
| Trapdoor
| 7 Perception
| [[:File:Up3x_1.png|connects]] trapdoor and a Lunatic base
|-
| [[Upper Underrail]], inside [[Panacea Lab]] ([[:File:plb.png|plb.png]])
| Switch
| 8 Perception
| opens door to the room in the northeast corner
|-
| [[Upper Underrail]], [[Gubbins]]' banidt camp ([[:File:Up7.png|Up7.png]])
| Ventilation Shaft
| 8 Perception
| connects inside of structure to outside, north of the barrel fire
|-
| [[Utility Tower]], first room past metal gate
| Ventilation Shaft
| 9 Perception
| ladder leading up, skips some floors
|-
| [[Institute of Tchort]], armory, behind the locked fence ([[:File:Tch-mil.png|Tch-mil.png]])
| Box of ammo
| 8 Perception
| x11 [[12.7mm W2C Round]]s
|-
| [[Institute of Tchort]], utility section 2, south room ([[:File:Tch-util2.png|Tch-util2.png]])
| Box
| 8 Perception
| one [[Aegis (medicine)|Aegis]], three [[Gizzard Enzymes]]
|-
| [[Institute of Tchort]], utility section 3, northwest corner ([[:File:tch-util3.png|tch-util3.png]])
| Morphine shot on file cabinet
| 10 Perception
| one morphine shot
|-
| [[Institute of Tchort]], utility section 3, northeast corner ([[:File:tch-util3.png|tch-util3.png]])
| Ventilation Shaft
| 8 Perception
| [[:File:Tch-vent.png|connects]] west wing and utility section
|-
| [[Institute of Tchort]], west wing, in coil spider room ([[:File:tch-ww2.png|tch-ww2.png]])
| Ventilation Shaft
| 7 Perception
| [[:File:Tch-vent.png|connects]] west wing and utility section
|-
| Institute of Tchort, [[Harpocrates Station]], north room ([[:File:tch_met.png|tch_met.png]])
| Secret crawlspace
| Quest trigger
| leads to the ventilation system during [[Track down Rassophore Nevil]]
|-
| Institute of Tchort, [[Upper Underrail Ventilation System]] ([[:File:tch_mv1.png|tch_mv1.png]])
| Secret crawlspace
| 8 Perception
| secret ventilation shaft section with a box
|-
| Institute of Tchort, [[Upper Underrail Ventilation System]], southwest room ([[:File:tch_mv1_2.png|tch_mv1_2.png]])
| Secret trapdoor
| 10 Perception
| leads to hidden [[:File:Tch_mv1_3.png|basement]]
|-
| [[Deep Caverns]], lake, northeast bank ([[:File:dc-lk.png|dc-lk.png]])
| Underwater rock bridge
| 7 Perception
| leads to a small island with hackable box
|-
| [[Deep Caverns]], lake, southwest islet ([[:File:dc-lk.png|dc-lk.png]])
| Sniper rifle
| 10 Perception
| reveals [[Black Arrow]] sniper rifle
|-
| Deep Caverns, [[Hollow Earth]] ([[:File:dc-la2.png|dc-la2.png]])
| Secret crawlspace
| 8 Perception
| secret entrance to the small building on the east
|-
| Deep Caverns, checkpoint between Caerus and warehouses ([[:File:dc-cp1.png|dc-cp1.png]])
| Underwater rock bridge
| 8 Perception
| leads to the east bank of the lake
|-
| Deep Caverns, [[Warehouse Block 2]], south toxic storage ([[:File:dc-wh3.png|dc-wh3.png]])
| Trapdoor
| 8 Perception
| leads to lower [[:File:Dc-wh3_1.png|level]], [[Psionic Mentor: Electrokinetic Imprint|Electrokinetic Imprint]] mentor
|-
| Deep Caverns, [[Caerus Residential]], northwest building, second floor ([[:File:dc-res2 2.png|dc-res2 2.png]])
| Ventilation Shaft
| 10 Perception
| leads to a [[:File:Dc-sc.png|cavern]] with [[Gunter Vasilica]], [[Psionic Mentor: Pseudo-spatial Projection|Pseudo-spatial Projection]] mentor, and [[Regenerative Mixture]]
|-
| Deep Caverns, [[Caerus Residential]], west apartment ([[:File:dc-res3.png|dc-res3.png]])
| Safe
| 6 Perception
| secret safe
|-
| Deep Caverns, [[Arke Power Station]], utility section toxic storage ([[:File:dc-pp_ut.png|dc-pp_ut.png]])
| Trapdoor
| 11 Perception
| [[:File:Dc-pp_ut_1.png|connects]] toxic storage and storage room
|-
| Deep Caverns, [[Arke Power Station]], utility section storage room ([[:File:dc-pp_ut.png|dc-pp_ut.png]])
| Trapdoor
| 10 Perception
| [[:File:Dc-pp_ut_1.png|connects]] toxic storage and storage room
|-
| Deep Caverns, [[Mushroom Forest|Deep Mushroom Forest]] ([[:File:dc-fs4.png|dc-fs4.png]])
| Secret tunnel
| 9 Perception
| leads to the northwest corner and a skeleton (very high quality corsair frame, canned foods, basic medicines, and batteries)
|}

=== Expedition ===
{{incomplete list}}

{| class="sortable wikitable"
|-
! Location, Underrail !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| [[Abandoned Waterway Facility]], east zone, on the island south of the bridge || Hidden stash || 8 Perception || exceptionally high-quality [[Mutated Dog Leather]]
|-
| [[The Rig]], room #2 || [[Note (The Rig)]] || 5 Perception || under the bed
|-
| [[Rig Periphery]], Waterways 9 || Hidden stash || Quest trigger or 16 Perception || discovers [[Knuckles]]' stash
|-
| [[Chancer's Bay]], NE map || Hole through wall of shack || 10 Perception || biohazard boots, corrosive acid, [[Encyclopedia Fragment]] oddity, mutants
|-
| [[Isaac's River]], northernmost map || Hidden stash || 10 Perception || stash in north wall of cave
|-
| [[Core City Docks]], empty room next to Ray's shop || Vent in north wall || 10 Perception || leads into Ray's shop, dying burglar
|-
| [[Dude's House - Core City]] || Cracked floor panel/wall safe || 5 Perception || key to wall safe/the safe itself
|-
| [[Dude's House - Caves]] || Footlocker under bed || 9 Perception || psionic mentor
|-
| [[Gray Army Base]] - Barracks, two rooms east of the rift || Secret trapdoor || 8 Perception || electronic components
|-
| [[Gray Army Base]] - Schtab || Wall safe || 9 Perception || secret safe in north wall of northwest room
|-
| [[Gray Army Base]] - Schtab || Secret opening || 9 Perception || Connects northern and southern parts of the ventilation system
|}

{{incomplete list}}

{| class="sortable wikitable"
|-
! Location, Black Sea !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| [[Black Sea]] ([[E4]]), north side of island || Entrance to cave || 11 Perception || entrance to pirate prison trash dump, leads to [[Thrasher]], a boss hermit crab
|-
| [[Siphoner Pools (Black Sea)]] || Underwater rock bridge || 7 Perception || leads to a lingula plant and a random treasure "crevice"
|-
| [[Siphoner Pools (Black Sea)]], west chamber || Buried box || 11 Perception || SGS credits, Charons, US dollars
|-
| [[Black Sea]] ([[C8]]), hopper island cave, north wall, west side || Hidden stash || 9 Perception || secret stash in cave wall, [[Bolt Quiver]] and some special bolts
|-
| [[Black Sea Grotto]] ([[A10]]), Yngwar's cave island, hidden walkway in water on east side|| Hidden stash || 8 Perception || secret stash in cave wall, contains coagulation shot, two antidotes and four rusting acid cvials
|-
| [[Mutie Refuge]], crane room || Hidden vent shaft || 7 Perception || secret vent shaft through wall into crane room
|-
| [[West Storage Depot]], lvl 2, east room || Hidden box of bullets || 6 Perception || 30x [[9mm Standard Round]]s
|-
| [[West Storage Depot]], lvl 2, southeast room || Hidden box of bullets || 9 Perception || 11x [[12.7mm Standard Round]]s
|-
| [[West Storage Depot]], lvl 3 by the elevator || Hidden vent shaft || 8 Perception || secret vent shaft to blocked room
|-
| [[Crimson Meadow Horticulture Center]] lower floor, west section, north side || Hidden vent shaft || 11 Perception || secret vent shaft through wall
|-
| [[Black Sea]] ([[I1]]), outside the Health Center, SE corner || Hidden hole through wall || 10 Perception || secret passage to hidden room
|-
| [[Black Sea]] ([[I2]]), tower north of Health Center, 2nd floor || Hidden corpse || 9 Perception || corpse with loot (can be looted without detection)
|-
| [[Nexus of Technology]], level 1, SE room || Hidden wall safe || 9 Perception || safe contains [[Energy Shield Emitter]] and two [[Plasma Cell]]s
|-
| [[Port Crag]], east building || Hidden pipe tunnel || 9 Perception || crawl through to west building, 2nd floor (agility 8; it is from the other direction)
|-
| [[Fetid Marsh]], east side of [[K5]]/west side of [[L5]] || Hidden map exit(s) || 10 Perception || secret camp with [[Signed Arena Ticket]] and [["ArenaNow" Broadcasting Schedule]] oddities and [[Slimy Tablet Computer]]
|-
| [[Fetid Marsh]], SW corner of [[K4]] || Hidden pool jumps || 12 Perception || secret platforms for easier jumping across leper pool
|-
| [[Giant Creeper Lair]] (two maps east of the Nexus), NW corner || Hidden passages || 9 Perception || secret passages to/from hidden room, shortcut past creepers
|}

=== Heavy Duty ===
{{incomplete list}}

{| class="sortable wikitable"
|-
! Location !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| Core City, [[Rag's Boutique]]|| Hidden trap door || 11 Perception || Discover entrance to the basement
|-
| Core City, [[Rag's Boutique]], basement || Discover contents behind the curtains || 13 Perception || Allows to target the auto-turrets without lifting the curtains
|-
| [[The Compound]], outside, northern side of the map || Hidden metal plates || 10 Perception || Hidden high quality two random metal plates behind a fence
|-
| [[The Compound]], entrance stairs || Hidden vent || 14 Perception || Leads to a blocked restroom that has a medical locker with [[Adrenaline Shot]] and [[Coagulation Shot]]
|-
| [[The Compound]], entrance offices || Hidden safe || 12 Perception || Hidden locked safe containing around 100 charons and a [[Gold Ring]]
|-
| [[The Compound]], exoskeleton assembler lab || Shelf back panel missing || 15 Perception || Secret passage behind a computer rack to the north, leads to a box with 3 [[Shock Bolt Mk III|Shock Bolts Mk III]], 2 [[Plasma Grenade Mk III|Plasma Grenades Mk III]] and a [[Laser Pistol]]
|-
| [[The Compound]], Fusion Cannon lab || Hidden [[Plasma Cell]] || 9 Perception || Under a table in the south
|-
| [[The Compound]], medical section 1 || Smaller box || 12 Perception || Hidden box inside a bigger box in the office, contains a vial of [[Aegis (medicine)|Aegis]]
|-
| [[The Compound]], medical section 2 || [[Super Health Hypo]] || 11 Perception || Found under a desk near the med stations in eastern side of the map
|-
| [[The Compound]], command, NW room || Hidden safe || 14 Perception || Hidden locked safe containing 3 [[Fusion Cell]]s, 3 [[Shock Bolt Mk III|Shock Bolts Mk III]], 4 [[Shock Bolt Mk II|Shock Bolts Mk II]] and a high quality [[Smart Module]]
|}

{{Base abilities navbox}}
[[Category: Base Abilities]]

Field test XAL-001

2025-06-14T21:44:06Z

Harperfan7:

{{Quest Infobox
| name = Field test XAL-001
| type = side
| image = Testing_XAL-001.png
| location = [[Institute of Tchort]]
| givenby = [[Principal Investigator Georgis]]
| rewards = 4000 classic XP / 2 oddity XP 300 [[Stygian Coin]]
| related = [[HRO protein research]]
| previous =
| next = [[Drink sampling]]
}}

You need to test an experimental acid weapon. What could go wrong?

== Objectives ==
* Principal Investigator Georgis needs you to help him field test an experimental chemical pistol - XAL-001. Use the pistol in combat until you are sure there are no problems with its design and then return to Georgis.

== Walkthrough ==
Use [[XAL-001 Pistol]] in combat until it malfunctions. Despite Georgis suggesting that you should test it on Faceless, you can test it on cave hoppers, target dummies or anything you want. With a high enough Mechanics and Chemistry skill (80 effective skill in both) and through dialog with Georgis when he hands you the prototype, you can tell him what is wrong with the weapon without needing to fire a single shot. The player may claim the device self-destructed or was simply discarded allowing you to keep the weapon, you still must have experienced the weapon malfunctioning to claim this.

{{Missions navbox}}
[[Category:Quests]]

D' Flinger

2025-06-10T17:40:25Z

Harperfan7:

{{expedition}}
{{Character Infobox
| name = D' Flinger
| type = important
| portrait = Xpbl prkt l.png
| background = Seacave.png
| health = 400
| image = D' Flinger.png
| faction = [[Grim Jetters]]
| roles = Pirate
| location = [[Port Ceto]]
| abilities = [[Quick Pockets]] [[Remote Surgeon]] [[Ripper]] [[Thick Skull]]
| loot = [[Utility Belt]] [[Cell Key (Port Ceto)]] [[Rusty Locker Key (Port Ceto)]]
|
|combat stats:
| actionpoints = 50
| initiative = 20
| strength = 8
| dexterity = 11
| agility = 4
| constitution = 8
| perception = 9
| will = 4
| intelligence = 5
|
| throwing = 130 (207)
| melee = 80 (127)
}}

'''D' Flinger''' is the best knife thrower among the Grim Jetters. He is responsible for watching over the pirate prisoners.

D' Flinger is a "boss" character, and on DOMINATING difficulty will appear with 400% of his regular health.

== Player Interactions ==
Player may tell Flinger various jokes they've heard through the game.
=== Throwing Competition ===
If player has joined the pirates, they can challenge him to a knife throwing contest. Player can bet from 50 up to 300 charons (he will refuse for only 20 charons). With enough [[Mercantile]] or [[Intimidation]], they can increase the bet to 400 charons (70 mercantile or 80 intimidation) or to 500 charons (85 mercantile or 95 intimidation). To beat him, 131 effective [[Throwing]] is required. It is also possible to intentionally lose (6 [[Intelligence]] required) which allows the player to bypass skill checks required to bet for more money in next try. To do this, you must first attempt to bet 400 or 500 charons and fail the merc or intimidate check, then attempt a 50-300 charon bet and choose the "lose intentionally" option (you can pickpocket back your losings), then you can go for a rematch and choose 500 charons. If you win, he will become angry and refuse to talk to you anymore. After that, the player can tell [[Donnie]] about defeating D' Flinger to spread the news. This will cause many pirates to comment on the player's skills and [[Calamity]] will start to offer more and better foodstuffs to the player, most notably, [[Pickled Mindshrooms]].

{{NPCs navbox}}
[[Category:Global entities]]
[[Category:Characters]]
[[Category:Bosses]]

D' Flinger

2025-06-10T17:14:57Z

Harperfan7:

{{expedition}}
{{Character Infobox
| name = D' Flinger
| type = important
| portrait = Xpbl prkt l.png
| background = Seacave.png
| health = 400
| image = D' Flinger.png
| faction = [[Grim Jetters]]
| roles = Pirate
| location = [[Port Ceto]]
| abilities = [[Quick Pockets]] [[Remote Surgeon]] [[Ripper]] [[Thick Skull]]
| loot = [[Utility Belt]] [[Cell Key (Port Ceto)]] [[Rusty Locker Key (Port Ceto)]]
|
|combat stats:
| actionpoints = 50
| initiative = 20
| strength = 8
| dexterity = 11
| agility = 4
| constitution = 8
| perception = 9
| will = 4
| intelligence = 5
|
| throwing = 130 (207)
| melee = 80 (127)
}}

'''D' Flinger''' is the best knife thrower among the Grim Jetters. He is responsible for watching over the pirate prisoners.

D' Flinger is a "boss" character, and on DOMINATING difficulty will appear with 400% of his regular health.

== Player Interactions ==
Player may tell Flinger various jokes they've heard through the game.
=== Throwing Competition ===
If player has joined the pirates, they can challenge him to a knife throwing contest. Player can bet from 50 up to 300 charons (he will refuse for only 20 charons). With enough [[Mercantile]] or [[Intimidation]], they can increase the bet to 400 charons (70 mercantile or 80 intimidation) or to 500 charons (85 mercantile or 95 intimidation). To beat him, 131 effective [[Throwing]] is required. It is also possible to intentionally lose (6 [[Intelligence]] required) which allows the player to bypass skill checks required to bet for more money in next try. If you win, he will become angry and refuse to talk to you anymore. After that, player can tell [[Donnie]] about defeating D' Flinger to spread the news. This will cause many pirates to comment on the player's skills and [[Calamity]] will start to offer more and better foodstuffs to the player, most notably, [[Pickled Mindshrooms]].

{{NPCs navbox}}
[[Category:Global entities]]
[[Category:Characters]]
[[Category:Bosses]]

Lockpicking

2025-06-09T18:12:02Z

Harperfan7:

'''Lockpicking''' is a [[Skills|skill]].

{{Quote
| Allows you to pick mechanical locks and dismantle other mechanical barriers such as ventilation shafts.
| In-game description
}}

{{Synergies
|* [[Dexterity]]
|* [[Mechanics]] 10%
* [[Traps]] 10%
}}

== Details ==
Lockpicking skill is used to open mechanical locks on doors and containers using lockpicks and also to open and close ventilation shafts with [[Omni-Tool]].

== Related feats ==
See [[:Category:Lockpicking feats]].

== Related items ==
* {{Itemlink|Jackknife}} (+7)
* {{Itemlink|JKK Tactful Jacket}} (+10)
* {{Itemlink|Lemurian Engineer Suit}}{{expedition-inline}} (+10)
* {{Itemlink|Lockpick}} (+0)
* {{Itemlink|Lockpick Mk II}} (+5)
* {{Itemlink|Lockpick Mk III}} (+10)
* {{Itemlink|Huxkey}} (+15)

== Lockpicking skill checks ==
{{Incomplete list}}
{{Expand section|all skillchecks}}
{{Expand section|random loot table entries for reward column}}

Most skillchecks are based on base skill level at that level. For example, areas with roughly level 18 content will have locks that require 100 effective skill. Most locks before [[Deep Caverns]] can be opened with 100 effective skill. Locks in Deep Caverns go up to level 25 or 135 skill. Using omni-tool to open ventilation shafts also requires lockpicking. See [[Omni-Tool]]. With expedition and heavy duty, checks go up to 160.

The following list contains skillchecks only up to the GMS compound. It also may be that there are some skillchecks missing. Besides some unique drops, loot is chosen from a pool of items. See [[Random loot table]] for details. The reward column is currently mostly empty because most loot is randomised. There are some filled entries, but it is not guaranteed that the loot always consists of those.

{| class="sortable wikitable"
|-
! Location !! Zone !! Exact Location !! Type !!data-sort-type="number"| Skill !! Reward !! Remarks

|-
|rowspan="31"| [[South Gate Station]] ||rowspan="3"| [[South Gate Station level 1]] ||rowspan="3"| inside the barracks || locker || 30 || || crime
|-
| footlocker || 30 || || crime
|-
| footlocker || 30 || || crime
|-
|rowspan="3"| [[South Gate Station level 2]] ||rowspan="3"| near [[Lucas]] || footlocker || 75 || || crime
|-
| weapon locker || 50 || || crime
|-
| weapon locker || 50 || || crime
|-
|rowspan="5"| [[South Gate Station level 3]] ||rowspan="5"| Tanner's buerau || locker || 60 || || crime
|-
| locker || 60 || || crime
|-
| locker || 60 || || crime
|-
| locker || 60 || || crime
|-
| locker || 60 || || crime
|-
|rowspan="6"| [[South Gate Station level 4]] ||rowspan="3"| Library || footlocker || 40 || || crime
|-
| locker || 55 || || crime
|-
| locker || 55 || || crime
|-
|rowspan="3"|Vera Hale's bureau || door || 75 || || crime
|-
| locker || 60 || || crime
|-
| locker || 60 || || crime
|-
|rowspan="6"| [[South Gate Station level 5]] ||rowspan="2"| room next to yours || footlocker || 25 || 300 SGS Credits || crime
|-
| footlocker || 25 || 350 SGS Credits || crime
|-
| surveillance room || Power Box || 100 || || crime
|-
| room next to surveillance room || footlocker || 40 || || crime
|-
| room to the north || locker || 40 || || crime
|-
| room opposite of the toilets || safe || 90 || || crime
|-
|rowspan="2"| [[South Gate Station level 6]] ||rowspan="2"| operating room || footlocker || 40 || || crime
|-
|locker || 45 || || crime
|-
|rowspan="2"| [[South Gate Station level 7]] ||rowspan="2"| cyber labs || locker || 40 || || crime
|-
|locker || 40 || || crime
|-
|rowspan="3"| [[South Gate Station level 8]] || hallway || door || 55 || || crime
|-
|rowspan="2"| agronomy || fence door || 30 || free the cave hoppers || crime
|-
| door || 15 || || crime
|-
| [[South Gate Station level 9]] || hallway || fence door || 100 || access to the surveillance room || crime
|-
|rowspan="3"| [[South Gate Outposts]] || South outposts || upper outpost || door || 10 || access to the upper outpost || You can enter the outpost through a hidden trap door.
|-
| East outpost || outpost || door || 12 || access to the outpost || You can enter the outpost through a hidden trap door.
|-
| Northwest tunnel || room with the elevator || locker || 14 || [[Omega ID Card]], 2 Health Hypos ||
|-
| [[Mushroom Cove]] || Mushroom Cove Base || in the room with two desks || locker || 25 ||
|-
|rowspan="2"| [[Warehouse Block Alpha]] || rowspan="2"| Warehouse Block Alpha 1 || building to the north || door || 35 || [[Omega ID Card]] in a shelf ||
|-
| fence || fence door || 20 || ||
|-
|rowspan="11"| [[GMS compound]] ||rowspan="3"| GMS compound level 1 || second room, on the table || footlocker || 25 || ||
|-
|rowspan="2"| room with 3 lockers || door || 20 || || you can circumvent that door
|-
| locker || 30 || ||
|-
|rowspan="4"| GMS compound level 2 || room with throwing net on the table || footlocker || 25 || [[Omega ID Card]], Health Hypo
|-
| surveillance room || safe || 30 || ||
|-
| upper door of the room with the metal crate || door || 15 || || you can circumvent that door
|-
| trap door in the room to the bottom || trap door || 50 || you can descend to level 3 || can be opened with [[Emergency Hatch Key (GMS)]]
|-
|rowspan="4"| GMS compound level 3 || room with two shelves || footlocker || 25 || 6 supercharged lithium cells ||
|-
| room on the top of the 4 adjacent rooms || locker || 30 || [[Level 1 Storage Key Card (GMS)]] || can be opened with [[Bloomberg's Key]]
|-
| room with the body || footlocker || 25 || ||
|-
| room next to the rooms with two shelves || locker || 25 || ||
|}

{{Skills navbox}}
[[Category:Skills]]

Lockpicking

2025-06-09T18:10:37Z

Harperfan7:

'''Lockpicking''' is a [[Skills|skill]].

{{Quote
| Allows you to pick mechanical locks and dismantle other mechanical barriers such as ventilation shafts.
| In-game description
}}

{{Synergies
|* [[Dexterity]]
|* [[Mechanics]] 10%
* [[Traps]] 10%
}}

== Details ==
Lockpicking skill is used to open mechanical locks on doors and containers using lockpicks and also to open and close ventilation shafts with [[Omni-Tool]].

== Related feats ==
See [[:Category:Lockpicking feats]].

== Related items ==
* {{Itemlink|Jackknife}} (+7)
* {{Itemlink|JKK Tactful Jacket}} (+10)
* {{Itemlink|Lemurian Engineer Suit}}{{expedition-inline}} (+10)
* {{Itemlink|Lockpick}} (+0)
* {{Itemlink|Lockpick Mk II}} (+5)
* {{Itemlink|Lockpick Mk III}} (+10)
* {{Itemlink|Huxkey}} (+15)

== Lockpicking skill checks ==
{{Incomplete list}}
{{Expand section|all skillchecks}}
{{Expand section|random loot table entries for reward column}}

Most skillchecks are based on base skill level at that level. For example, areas with roughly level 18 content will have locks that require 100 effective skill. Most locks before [[Deep Caverns]] can be opened with 100 effective skill. Locks in Deep Caverns go up to level 25 or 135 skill. Using omni-tool to open ventilation shafts also requires lockpicking. See [[Omni-Tool]]. With expedition and heavy duty, checks go up to 160, and in one place from heavy duty, vents require 100 lockpicking.

The following list contains skillchecks only up to the GMS compound. It also may be that there are some skillchecks missing. Besides some unique drops, loot is chosen from a pool of items. See [[Random loot table]] for details. The reward column is currently mostly empty because most loot is randomised. There are some filled entries, but it is not guaranteed that the loot always consists of those.

{| class="sortable wikitable"
|-
! Location !! Zone !! Exact Location !! Type !!data-sort-type="number"| Skill !! Reward !! Remarks

|-
|rowspan="31"| [[South Gate Station]] ||rowspan="3"| [[South Gate Station level 1]] ||rowspan="3"| inside the barracks || locker || 30 || || crime
|-
| footlocker || 30 || || crime
|-
| footlocker || 30 || || crime
|-
|rowspan="3"| [[South Gate Station level 2]] ||rowspan="3"| near [[Lucas]] || footlocker || 75 || || crime
|-
| weapon locker || 50 || || crime
|-
| weapon locker || 50 || || crime
|-
|rowspan="5"| [[South Gate Station level 3]] ||rowspan="5"| Tanner's buerau || locker || 60 || || crime
|-
| locker || 60 || || crime
|-
| locker || 60 || || crime
|-
| locker || 60 || || crime
|-
| locker || 60 || || crime
|-
|rowspan="6"| [[South Gate Station level 4]] ||rowspan="3"| Library || footlocker || 40 || || crime
|-
| locker || 55 || || crime
|-
| locker || 55 || || crime
|-
|rowspan="3"|Vera Hale's bureau || door || 75 || || crime
|-
| locker || 60 || || crime
|-
| locker || 60 || || crime
|-
|rowspan="6"| [[South Gate Station level 5]] ||rowspan="2"| room next to yours || footlocker || 25 || 300 SGS Credits || crime
|-
| footlocker || 25 || 350 SGS Credits || crime
|-
| surveillance room || Power Box || 100 || || crime
|-
| room next to surveillance room || footlocker || 40 || || crime
|-
| room to the north || locker || 40 || || crime
|-
| room opposite of the toilets || safe || 90 || || crime
|-
|rowspan="2"| [[South Gate Station level 6]] ||rowspan="2"| operating room || footlocker || 40 || || crime
|-
|locker || 45 || || crime
|-
|rowspan="2"| [[South Gate Station level 7]] ||rowspan="2"| cyber labs || locker || 40 || || crime
|-
|locker || 40 || || crime
|-
|rowspan="3"| [[South Gate Station level 8]] || hallway || door || 55 || || crime
|-
|rowspan="2"| agronomy || fence door || 30 || free the cave hoppers || crime
|-
| door || 15 || || crime
|-
| [[South Gate Station level 9]] || hallway || fence door || 100 || access to the surveillance room || crime
|-
|rowspan="3"| [[South Gate Outposts]] || South outposts || upper outpost || door || 10 || access to the upper outpost || You can enter the outpost through a hidden trap door.
|-
| East outpost || outpost || door || 12 || access to the outpost || You can enter the outpost through a hidden trap door.
|-
| Northwest tunnel || room with the elevator || locker || 14 || [[Omega ID Card]], 2 Health Hypos ||
|-
| [[Mushroom Cove]] || Mushroom Cove Base || in the room with two desks || locker || 25 ||
|-
|rowspan="2"| [[Warehouse Block Alpha]] || rowspan="2"| Warehouse Block Alpha 1 || building to the north || door || 35 || [[Omega ID Card]] in a shelf ||
|-
| fence || fence door || 20 || ||
|-
|rowspan="11"| [[GMS compound]] ||rowspan="3"| GMS compound level 1 || second room, on the table || footlocker || 25 || ||
|-
|rowspan="2"| room with 3 lockers || door || 20 || || you can circumvent that door
|-
| locker || 30 || ||
|-
|rowspan="4"| GMS compound level 2 || room with throwing net on the table || footlocker || 25 || [[Omega ID Card]], Health Hypo
|-
| surveillance room || safe || 30 || ||
|-
| upper door of the room with the metal crate || door || 15 || || you can circumvent that door
|-
| trap door in the room to the bottom || trap door || 50 || you can descend to level 3 || can be opened with [[Emergency Hatch Key (GMS)]]
|-
|rowspan="4"| GMS compound level 3 || room with two shelves || footlocker || 25 || 6 supercharged lithium cells ||
|-
| room on the top of the 4 adjacent rooms || locker || 30 || [[Level 1 Storage Key Card (GMS)]] || can be opened with [[Bloomberg's Key]]
|-
| room with the body || footlocker || 25 || ||
|-
| room next to the rooms with two shelves || locker || 25 || ||
|}

{{Skills navbox}}
[[Category:Skills]]

Perception

2025-05-20T02:36:49Z

Harperfan7:

{{Quote
| Perception represents character's ability to discern objects from far away as well as to notice hidden things in their vicinity. It helps the character to use ranged weapons more effectively, as well as detect hidden objects, passages and creatures.
| In-game description
}}

== Details ==
'''Perception''' determines your character's overall awareness and effectiveness with ranged weapons. It also affects your character's chance to detect hidden passages, objects or stealthed creatures and NPCs. It does not increase your vision or visible range. Perception does not directly affect your chance to hit, but rather increases your ranged weapon skills, which in turn increases your chance to hit with ranged weapons. Melee weapon hit rate is unchanged but increased with melee skill (through strength or dexterity). No items require perception to be used or equipped.

High perception score is important for characters who wish to use ranged weapons or find traps, stealthed enemies and secrets.

{{Synergies|
* [[Guns]]
* [[Crossbows]]
|
* [[Detection]]
* Finding secrets (uses perception score instead of detection)
}}

== Related feats ==
See [[:Category:Perception feats]].
* [[Snooping]] increases perception by 3 for the purposes of finding secrets.
* [[Increased Perception]] veteran feat increases it by 2.

== Related items ==

=== Headwear ===
* {{Itemlink|Adaptive Goggles}} (+1 Perception on equip)
* {{Itemlink|Cyclop's Eye}} (+1 Perception on equip)
* {{Itemlink|Synesthetic Refocus}} (+2 Perception when equipped and character is focused, -2 Perception when character is unfocused)
* {{Itemlink|Synesthetic Refocus|Synesthetic Refocus(Hexagon)}} (+3 Perception when equipped and character is focused, -3 Perception when character is unfocused)
* {{Itemlink|Metal Helmet}}s (-1 Perception on equip)
* {{Itemlink|Aegis Sec-trooper Helmet}}{{expedition-inline}} (-1 Perception on equip)
* {{Itemlink|Praetorian Lawgiver}} (-1 Perception on equip)
* {{Itemlink|Gas Mask}} (-2 Perception on equip)
* {{Itemlink|Tchortist Bioscrubber}} (-2 Perception on equip)
* {{Itemlink|Perceptual Isolation Helmet}}{{heavyduty-inline}} (Perception set to 1)

=== Suit ===
* {{Itemlink|Tchortist Noble Robe}} (-1 Perception on equip)
* {{Itemlink|Tchortist Rassophore Armor}} (-1 Perception on equip)
* {{Itemlink|Biohazard Suit}} (-2 Perception on equip)
* {{Itemlink|Fire Proximity Suit}} (-2 Perception on equip)
* {{Itemlink|Blast Suit}} (-2 Perception on equip)
* {{Itemlink|Robe}} (-2 Perception on equip)
* {{Itemlink|Tchortist Robe}} (-2 Perception on equip)
* {{Itemlink|Tchortist Vathosphore Armor}} (-1 Perception on equip)

=== Food ===
* {{Itemlink|All-in}} (temporarily +3 all base abilities)
* {{Itemlink|Boolean}} (temporarily -3 all base abilities)
* {{Itemlink|Mushroom Salad}} (temporary +1 Perception)
* {{Itemlink|Junkyard Surprise}} (temporary random base ability effect, can only decrease Perception)
* {{Itemlink|Clean Deal}} (temporary -1 Perception)
* {{Itemlink|Mushroom Brew}} (temporary -2 Perception)
* {{Itemlink|Kzozel}} {{expedition-inline}} (temporary -2 Perception)
* {{Itemlink|Stalagdrop}} (temporary -1 Perception)
* {{Itemlink|White Dude}} (temporarily -2 Perception)
* {{Itemlink|Cave Tear}} (temporary -3 Perception)

=== Drugs ===
* {{Itemlink|Third Eye (drug)|Third Eye}}{{expedition-inline}} (temporary +3 Perception for the purpose of finding secrets)
* {{Itemlink|Bioluminous Marsh Honey}}{{expedition-inline}} (temporary +2 Perception)
* {{Itemlink|Supersoldier Drug (medicine)|Supersoldier Drug}} (temporary +2 Perception)
* {{Itemlink|The Juice}} (temporary +1 Perception)

== Perception checks ==
[[File:Tilemarker Perception.png|left]]

Discovering secret areas is based on [[Perception]] score alone, unlike detecting traps and stealthed characters, which is based on [[Detection]]. Discovering some secrets requires prior knowledge instead of Perception score.

In addition to secrets, [[Underrail: Expedition]] expansion added visible in-world Perception checks similar to [[Strength]], [[Dexterity]] and [[Agility]] checks.

=== Base game ===

{{incomplete list}}

{| class="sortable wikitable"
|-
! Location !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| Lower Caves, [[South Gate Outposts]], Area '''South outposts''', inside NW outpost ([[:File:Forlornstations1.png|Forlornstations1.png]])
| Trapdoor
| 6 Perception
| [[:File:ForlornStations4_1.png|connects]] the two south outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''South outposts''', inside NE outpost ([[:File:Forlornstations1.png|Forlornstations1.png]])
| Trapdoor
| 6 Perception
| [[:File:ForlornStations4_1.png|connects]] the two south outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''East outpost''', inside the outpost ([[:File:ForlornStations4.png|ForlornStations4.png]])
| Trapdoor
| 7 Perception
| [[:File:ForlornStations1_1.png|connects]] east and northwest outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''East outpost''', northeast tunnels ([[:File:ForlornStations4.png|ForlornStations4.png]])
| Trapdoor
| 8 Perception
| [[:File:ForlornStations1_1.png|connects]] east and northwest outposts
|-
| [[Under-passages]] Lower Passages Dungeon, ([[:File:Dun lup-a.png|Dun lup-a.png]])
| Passage
| Quest trigger or 11 Perception
| entrance to the next area in the [[Camera problems]] quest
|-
| [[Under-passages]] area 1, near SGS ([[:File:lup-a1.png|lup-a1.png]])
| Door
| 7 Perception
| secret room along east wall, [[Strange Comm Device]] oddity
|-
| Lower Underrail, [[GMS compound level 1]] ([[:File:GammaCompound1.png|GammaCompound1.png]])
| Safe
| 7 Perception
| secret safe in room near southwest corner
|-
| Lower Underrail, [[GMS compound level 2]] ([[:File:GammaCompound2.png|GammaCompound2.png]])
| Secret passage
| 7 Perception
| secret room along east wall, [[Old Data Medium]] oddity
|-
| Lower Underrail, [[GMS compound level 3]] ([[:File:GammaCompound3.png|GammaCompound3.png]])
| First aid box
| 7 Perception
| SW room, hidden under couch, medicine including an [[Advanced Health Hypo]]
|-
| [[Lower Caves]], east from [[GMS compound level 3]] ([[:File:cv12.png|cv12.png]])
| Secret crawlspace
| 8 Perception
| leads to the back entrance of the raider [[:File:Cv14.png|base]]
|-
| [[Lower Caves]], raider [[:File:Cv14.png|base]]
| Adrenaline shot
| 8 Perception
| under [[Gerhard Page]]'s bed
|-
| [[Lower Caves]] between Mushroom Cove and Junkyard ([[:File:jyt1.png|jyt1.png]])
| Underwater rock bridge
| 8 Perception
| leads to a small island
|-
| Lower Caves, [[Siphoner Pools (Lower Caves)|Siphoner Pools]], northeast ([[:File:jyt3.png|jyt3.png]])
| Underwater rock bridge
| 8 Perception
| leads to the northeast corner of the cave
|-
| Lower Caves, [[Water Treatment Facility]]
| Plasma cell
| 6 Perception
| under a table in the power room
|-
| Lower Caves, [[Water Treatment Facility]]
| Shotgun shells
| 8 Perception
| on top of a locker in the SE room on the upper level
|-
| Lower Caves, [[Water Treatment Facility]]
| First-aid kit
| 7 Perception
| in the SE room on the lower level, random medicine
|-
| Lower Caves, [[Water Treatment Facility]]
| Hidden opening
| 9 Perception
| secret compartment in the ventilation system, Deathstalker corpse with [[Crawler's Eye]] oddity
|-
| Lower Caves, [[Water Treatment Facility]]
| Secret crawlspace
| 7 Perception
| along north wall on the lower level, leads to secluded room with loot
|-
| [[Silent Isle]], southeast ([[:File:si1.png|si1.png]])
| Underwater rock bridge
| 7 Perception
| leads to a small island with a corpse with random [[Mutated Dog Leather Armor]]
|-
| Junkyard, Security control room of [[Depot A]] east area ([[:File:ojy2.png|ojy2.png]])
| Secret door
| 10 perception
| shortcut bypassing the turrets
|-
| [[Lower Underrail]] area 6, Lunatic camp ([[:File:lu-a6.png|lu-a6.png]])
| Hidden stash
| 8 Perception
| secret footlocker near rock pile
|-
| [[Upper Caves]], south of Milton's camp ([[:File:lux-a10.png|lux-a10.png]])
| Underwater rock bridge
| 7 Perception
| shortcut between the north and south bank of the river
|-
| [[Upper Caves]], ironhead camp, two zones north of the [[Bunker (Upper Caves)|Bunker]] ([[:File:Lux-b16.png|Lux-b16.png]])
| Hidden stash
| 10 Perception
| NW corner of map, through the backside of the camp, contains a [[Jumping Bean]] and random tabi boots
|-
| [[Upper Caves]], [[Synesthete camp]], under the {{spoiler|Oculus}}
| Hidden stash
| 11 Perception
| in the rock next to the Synesthete, contains roughly 300 charons
|-
| [[Upper Caves]], misty river north of Hecate caves entrance
| Underwater rock bridge
| 9 Perception
| leads to a box containing a [[Niobium Piercing Set]]
|-
| [[Lost Vault]] entrance
| Hidden ventilation shaft
| 9 Perception
| leads into the shack behind the trader
|-
| [[Lost Vault]] interior
| Hidden first-aid box
| 7 Perception
| random medicine
|-
| [[Lost Vault]] interior
| Hidden footlocker
| 7 Perception
| in room along north wall, contains [[Circular Wave Amplifier]]
|-
| [[Lost Vault]] interior
| Hidden bag
| 10 Perception
| in the northern room along west wall, accessible only with 11 [[Strength]], contains two advanced mechanical and electronic repair kits and a lighter
|-
| [[Lost Vault]] interior
| Hidden sack
| 9 Perception
| South-western room, accessible only with 11 [[Agility]], contains [[Greater Fusion Cell]], two [[Fusion Cell]]s and two [[Plasma Cell]]s
|-
| [[Lower Caves]], south of [[Crossroad Caves]] ([[:File:cv2.png|cv2.png]])
| Trapdoor
| 8 Perception
| [[:File:Cv2 1.png|connects]] southwest and southeast corner, locked box with random psionic mentor
|-
| [[Lower Caves]], south of [[Crossroad Caves]] ([[:File:cv2.png|cv2.png]])
| Underwater rock bridge
| 7 Perception
| shortcut bypassing siphoners
|-
| Lower Caves, south of [[Camp Hathor]] ([[:File:cv19.png|cv19.png]])
| Underwater rock bridge
| 7 Perception
| shortcut bypassing rathound nest
|-
| Lower Caves, [[Rathound King Lair]] ([[:File:rkl2.png|rkl2.png]])
| Door
| Quest trigger or 10 Perception
| shortcut leading outside if you offer to [[Kidnap Sarine|kidnap Sarine]] or [[Kill the Rathound King|negotiate a truce]] with Camp Hathor
|-
| Lower Caves, [[Rathound King Lair]], outside ([[:File:cv21.png|cv21.png]])
| Door
| Quest trigger or 15 Perception
| shortcut leading to the lair if you offer to [[Kidnap Sarine|kidnap Sarine]] or [[Kill the Rathound King|negotiate a truce]] with Camp Hathor
|-
| Lower Underrail, [[Abandoned Warehouse]] ([[:File:aw1-1.png|aw1-1.png]])
| Secret crawlspace
| 7 Perception
| secret ventilation shaft section with a footlocker and a rathound
|-
| [[Rail Crossing]], behind bar ([[:File:rc1.png|rc1.png]])
| Secret door
| 7 Perception
| leads to [[Deacon]]'s shop
|-
| Rail Crossing, [[Buzzer's Shop]]'s ventilation shafts ([[:File:rc_shop 3.png|rc_shop 3.png]])
| Hidden Ventilation Shaft
| 7 Perception
| secret ventilation shaft section with [[Hardware Bug]]
|-
| Lower Underrail, [[Dude's vision|The warehouse from Dude's vision]] ([[:File:lu-b4.png|lu-b4.png]])
| Secret crawlspace
| Quest trigger
| leads to the lower level of the warehouse during Dude's quest
|-
| [[Free Drones Base]], east room
| Trapdoor
| 11 Perception
| can't be opened; handle breaks
|-
| [[Upper Caves]], north from the Hanging Rat bar ([[:File:lux-c2.png|lux-c2.png]])
| Hidden stash
| 11 Perception
| secret stash inside rock pillar (not visible on the linked map)
|-
| Foundry, Evelyn's home ([[:File:fo3.png|fo3.png]])
| Trapdoor
| 10 Perception
| [[:File:Fo3-tunnel.png|connects]] Evelyn's house and bunker
|-
| Foundry, Evelyn's home ([[:File:fo3.png|fo3.png]])
| Secret crawlspace
| Quest trigger
| leads to Evelyn's [[:File:Fo-bunker.png|bunker]] if a male player character [[Foundry murders|has a drink]] with her
|-
| [[Lower Underrail]], cave west of [[Foundry]] ([[:File:lu-b22x.png|lu-b22x.png]])
| Hidden stash
| 10 Perception
| secret stash inside rock pillar
|-
| Core City, SW middle level ([[:File:Cc17.png|Cc17.png]])
| Ladder
| 14 Perception
| leads to Phreak's hideout, utility section electric coil area
|-
| Core City, utility section ([[:File:Cc_utility.png|Cc_utility.png]])
| Squeeze through gap in pipes
| 11 Perception (can be bypassed with night vision mode of the [[Goggles]])
| leads to Phreak's hideout, boilers area
|-
| Core City, [[Utility Facility]] steam area
| Junk pile
| 7 Perception
| Contains [[TiChrome Spikes]] and a [[Boot Spring]], NW corridor
|-
| Core City, [[Utility Facility]] steam area, through the door east of the steam console, near Modified Industrial Bot
| Plasma cell
| 10 Perception
| [[Plasma Cell]] and a [[Plasma Core]]
|-
| Core City, [[Utility Facility]] electric coil area
| Phreak's laptop
| Quest trigger
| laptop hidden in trash pile in his hideout, available after his disappearance
|-
| Core City, [[Utility Facility]] electric coil area, SE room on 2nd floor
| Bag
| 8 Perception
| random knife
|-
| Core City, [[Drop Zone]] ([[:File:cc15.png|cc15.png]])
| Secret door
| Quest trigger or 6 Perception
| leads to Bogdan's [[:File:Cc15x.png|hideout]], can be found with perception or by learning about it from [[Kupusije]] during [[Find Bogdan]], or with perception after starting [[Sewers generator]]/[[Retrieve ICPD]]
|-
| Core City, inside one of [[Drop Zone]] buildings ([[:File:cc5_1.png|cc5_1.png]])
| Trapdoor
| 8 Perception
| leads to the basement
|-
| Core City, north [[Core City Sewers]] ([[:File:cc_s2.png|cc_s2.png]])
| Door
| 8 Perception
| leads to a secret room on the west side containing some loot
|-
| Core City, northwest [[Core City Sewers]] ([[:File:cc_s6 2.png|cc_s6 2.png]])
| Switch
| Quest trigger
| opens door to Acid Hunters' hideout during the [[Look for Cornell]] quest
|-
| Core City, [[Zaman's Lair]], Underground lake ([[:File:Cc zamanscave2.png|Cc zamanscave2.png]])
| Hidden stash
| 9 Perception
| contains around fifty UN dollars
|-
| Core City, [[Port Zenith]] warehouses
| Hidden safe
| 9 Perception
| Hidden locked safe in [[Captain Wilkins]]s room, contains fifty [[United Stations Dollars]], an energy pistol and a [[Fusion Cell]]
|-
| [[Upper Underrail]], east of [[Notus Living Block]] ([[:File:up3x.png|up3x.png]])
| Trapdoor
| 7 Perception
| [[:File:Up3x_1.png|connects]] trapdoor and a Lunatic base
|-
| [[Upper Underrail]], inside [[Panacea Lab]] ([[:File:plb.png|plb.png]])
| Switch
| 8 Perception
| opens door to the room in the northeast corner
|-
| [[Upper Underrail]], [[Gubbins]]' banidt camp ([[:File:Up7.png|Up7.png]])
| Ventilation Shaft
| 8 Perception
| connects inside of structure to outside, north of the barrel fire
|-
| [[Utility Tower]], first room past metal gate
| Ventilation Shaft
| 9 Perception
| ladder leading up, skips some floors
|-
| [[Institute of Tchort]], armory, behind the locked fence ([[:File:Tch-mil.png|Tch-mil.png]])
| Box of ammo
| 8 Perception
| x11 [[12.7mm W2C Round]]s
|-
| [[Institute of Tchort]], utility section 2, south room ([[:File:Tch-util2.png|Tch-util2.png]])
| Box
| 8 Perception
| one [[Aegis (medicine)|Aegis]], three [[Gizzard Enzymes]]
|-
| [[Institute of Tchort]], utility section 3, northwest corner ([[:File:tch-util3.png|tch-util3.png]])
| Morphine shot on file cabinet
| 10 Perception
| one morphine shot
|-
| [[Institute of Tchort]], utility section 3, northeast corner ([[:File:tch-util3.png|tch-util3.png]])
| Ventilation Shaft
| 8 Perception
| [[:File:Tch-vent.png|connects]] west wing and utility section
|-
| [[Institute of Tchort]], west wing, in coil spider room ([[:File:tch-ww2.png|tch-ww2.png]])
| Ventilation Shaft
| 7 Perception
| [[:File:Tch-vent.png|connects]] west wing and utility section
|-
| Institute of Tchort, [[Harpocrates Station]], north room ([[:File:tch_met.png|tch_met.png]])
| Secret crawlspace
| Quest trigger
| leads to the ventilation system during [[Track down Rassophore Nevil]]
|-
| Institute of Tchort, [[Upper Underrail Ventilation System]] ([[:File:tch_mv1.png|tch_mv1.png]])
| Secret crawlspace
| 8 Perception
| secret ventilation shaft section with a box
|-
| Institute of Tchort, [[Upper Underrail Ventilation System]], southwest room ([[:File:tch_mv1_2.png|tch_mv1_2.png]])
| Secret trapdoor
| 10 Perception
| leads to hidden [[:File:Tch_mv1_3.png|basement]]
|-
| [[Deep Caverns]], lake, northeast bank ([[:File:dc-lk.png|dc-lk.png]])
| Underwater rock bridge
| 7 Perception
| leads to a small island with hackable box
|-
| [[Deep Caverns]], lake, southwest islet ([[:File:dc-lk.png|dc-lk.png]])
| Sniper rifle
| 10 Perception
| reveals [[Black Arrow]] sniper rifle
|-
| Deep Caverns, [[Hollow Earth]] ([[:File:dc-la2.png|dc-la2.png]])
| Secret crawlspace
| 8 Perception
| secret entrance to the small building on the east
|-
| Deep Caverns, checkpoint between Caerus and warehouses ([[:File:dc-cp1.png|dc-cp1.png]])
| Underwater rock bridge
| 8 Perception
| leads to the east bank of the lake
|-
| Deep Caverns, [[Warehouse Block 2]], south toxic storage ([[:File:dc-wh3.png|dc-wh3.png]])
| Trapdoor
| 8 Perception
| leads to lower [[:File:Dc-wh3_1.png|level]], [[Psionic Mentor: Electrokinetic Imprint|Electrokinetic Imprint]] mentor
|-
| Deep Caverns, [[Caerus Residential]], northwest building, second floor ([[:File:dc-res2 2.png|dc-res2 2.png]])
| Ventilation Shaft
| 10 Perception
| leads to a [[:File:Dc-sc.png|cavern]] with [[Gunter Vasilica]], [[Psionic Mentor: Pseudo-spatial Projection|Pseudo-spatial Projection]] mentor, and [[Regenerative Mixture]]
|-
| Deep Caverns, [[Caerus Residential]], west apartment ([[:File:dc-res3.png|dc-res3.png]])
| Safe
| 6 Perception
| secret safe
|-
| Deep Caverns, [[Arke Power Station]], utility section toxic storage ([[:File:dc-pp_ut.png|dc-pp_ut.png]])
| Trapdoor
| 11 Perception
| [[:File:Dc-pp_ut_1.png|connects]] toxic storage and storage room
|-
| Deep Caverns, [[Arke Power Station]], utility section storage room ([[:File:dc-pp_ut.png|dc-pp_ut.png]])
| Trapdoor
| 10 Perception
| [[:File:Dc-pp_ut_1.png|connects]] toxic storage and storage room
|-
| Deep Caverns, [[Mushroom Forest|Deep Mushroom Forest]] ([[:File:dc-fs4.png|dc-fs4.png]])
| Secret tunnel
| 9 Perception
| leads to the northwest corner and a skeleton
|}

=== Expedition ===
{{incomplete list}}

{| class="sortable wikitable"
|-
! Location, Underrail !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| [[Abandoned Waterway Facility]], east zone, on the island south of the bridge || Hidden stash || 8 Perception || exceptionally high-quality [[Mutated Dog Leather]]
|-
| [[The Rig]], room #2 || [[Note (The Rig)]] || 5 Perception || under the bed
|-
| [[Rig Periphery]], Waterways 9 || Hidden stash || Quest trigger or 16 Perception || discovers [[Knuckles]]' stash
|-
| [[Chancer's Bay]], NE map || Hole through wall of shack || 10 Perception || biohazard boots, corrosive acid, [[Encyclopedia Fragment]] oddity, mutants
|-
| [[Isaac's River]], northernmost map || Hidden stash || 10 Perception || stash in north wall of cave
|-
| [[Core City Docks]], empty room next to Ray's shop || Vent in north wall || 10 Perception || leads into Ray's shop, dying burglar
|-
| [[Dude's House - Core City]] || Cracked floor panel/wall safe || 5 Perception || key to wall safe/the safe itself
|-
| [[Dude's House - Caves]] || Footlocker under bed || 9 Perception || psionic mentor
|-
| [[Gray Army Base]] - Barracks, two rooms east of the rift || Secret trapdoor || 8 Perception || electronic components
|-
| [[Gray Army Base]] - Schtab || Wall safe || 9 Perception || secret safe in north wall of northwest room
|-
| [[Gray Army Base]] - Schtab || Secret opening || 9 Perception || Connects northern and southern parts of the ventilation system
|}

{{incomplete list}}

{| class="sortable wikitable"
|-
! Location, Black Sea !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| [[Black Sea]] ([[E4]]), north side of island || Entrance to cave || 11 Perception || entrance to pirate prison trash dump, leads to [[Thrasher]], a boss hermit crab
|-
| [[Siphoner Pools (Black Sea)]] || Underwater rock bridge || 7 Perception || leads to a lingula plant and a random treasure "crevice"
|-
| [[Siphoner Pools (Black Sea)]], west chamber || Buried box || 11 Perception || SGS credits, Charons, US dollars
|-
| [[Black Sea]] ([[C8]]), hopper island cave, north wall, west side || Hidden stash || 9 Perception || secret stash in cave wall, [[Bolt Quiver]] and some special bolts
|-
| [[Black Sea Grotto]] ([[A10]]), Yngwar's cave island, hidden walkway in water on east side|| Hidden stash || 8 Perception || secret stash in cave wall, contains coagulation shot, two antidotes and four rusting acid cvials
|-
| [[Mutie Refuge]], crane room || Hidden vent shaft || 7 Perception || secret vent shaft through wall into crane room
|-
| [[West Storage Depot]], lvl 2, east room || Hidden box of bullets || 6 Perception || 30x [[9mm Standard Round]]s
|-
| [[West Storage Depot]], lvl 2, southeast room || Hidden box of bullets || 9 Perception || 11x [[12.7mm Standard Round]]s
|-
| [[West Storage Depot]], lvl 3 by the elevator || Hidden vent shaft || 8 Perception || secret vent shaft to blocked room
|-
| [[Crimson Meadow Horticulture Center]] lower floor, west section, north side || Hidden vent shaft || 11 Perception || secret vent shaft through wall
|-
| [[Black Sea]] ([[I1]]), outside the Health Center, SE corner || Hidden hole through wall || 10 Perception || secret passage to hidden room
|-
| [[Black Sea]] ([[I2]]), tower north of Health Center, 2nd floor || Hidden corpse || 9 Perception || corpse with loot (can be looted without detection)
|-
| [[Nexus of Technology]], level 1, SE room || Hidden wall safe || 9 Perception || safe contains [[Energy Shield Emitter]] and two [[Plasma Cell]]s
|-
| [[Port Crag]], east building || Hidden pipe tunnel || 9 Perception || crawl through to west building, 2nd floor (agility 8; it is from the other direction)
|-
| [[Fetid Marsh]], east side of [[K5]]/west side of [[L5]] || Hidden map exit(s) || 10 Perception || secret camp with [[Signed Arena Ticket]] and [["ArenaNow" Broadcasting Schedule]] oddities and [[Slimy Tablet Computer]]
|-
| [[Fetid Marsh]], SW corner of [[K4]] || Hidden pool jumps || 12 Perception || secret platforms for easier jumping across leper pool
|-
| [[Giant Creeper Lair]] (two maps east of the Nexus), NW corner || Hidden passages || 9 Perception || secret passages to/from hidden room, shortcut past creepers
|}

=== Heavy Duty ===
{{incomplete list}}

{| class="sortable wikitable"
|-
! Location !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| Core City, [[Rag's Boutique]]|| Hidden trap door || 11 Perception || Discover entrance to the basement
|-
| Core City, [[Rag's Boutique]], basement || Discover contents behind the curtains || 13 Perception || Allows to target the auto-turrets without lifting the curtains
|-
| [[The Compound]], outside, northern side of the map || Hidden metal plates || 10 Perception || Hidden high quality two random metal plates behind a fence
|-
| [[The Compound]], entrance stairs || Hidden vent || 14 Perception || Leads to a blocked restroom that has a medical locker with [[Adrenaline Shot]] and [[Coagulation Shot]]
|-
| [[The Compound]], entrance offices || Hidden safe || 12 Perception || Hidden locked safe containing around 100 charons and a [[Gold Ring]]
|-
| [[The Compound]], exoskeleton assembler lab || Shelf back panel missing || 15 Perception || Secret passage behind a computer rack to the north, leads to a box with 3 [[Shock Bolt Mk III|Shock Bolts Mk III]], 2 [[Plasma Grenade Mk III|Plasma Grenades Mk III]] and a [[Laser Pistol]]
|-
| [[The Compound]], Fusion Cannon lab || Hidden [[Plasma Cell]] || 9 Perception || Under a table in the south
|-
| [[The Compound]], medical section 1 || Smaller box || 12 Perception || Hidden box inside a bigger box in the office, contains a vial of [[Aegis (medicine)|Aegis]]
|-
| [[The Compound]], medical section 2 || [[Super Health Hypo]] || 11 Perception || Found under a desk near the med stations in eastern side of the map
|-
| [[The Compound]], command, NW room || Hidden safe || 14 Perception || Hidden locked safe containing 3 [[Fusion Cell]]s, 3 [[Shock Bolt Mk III|Shock Bolts Mk III]], 4 [[Shock Bolt Mk II|Shock Bolts Mk II]] and a high quality [[Smart Module]]
|}

{{Base abilities navbox}}
[[Category: Base Abilities]]

Stone Bolas

2024-12-17T01:00:43Z

Harperfan7:

{{expedition}}
{{infobox item
| image = Stone Bolas.png
| itemquality = normal
| name = Stone Bolas
| type = Combat Utility
| description = Three heavy stones tied with twisted sinew. A skillful thrower can use them to immobilize their quarry.
| capabilities = Use: Throw the stone bolas at the target in an attempt to deal 20-40 damage and immobilize them for up to 2 (depending on the target's strength). If damage is dealt the target's ribs are broken which causes them to receive additional 25% mechanical damage from all sources. This effect lasts 3 turns and stacks up to 2 times. Only works on targets that actually have ribs. (AP: 10; Cooldown: 4 turns)
| weight = 5.00
| value = 100
| datafile =
}}

'''Stone Bolas''' are throwing utilities that deal mechanical damage, inflict [[Broken Ribs]] and [[Entangled|entangle]] their target, rooting them in place. The target can try to break free with brute force, so the entanglement duration depends on the target's [[strength]].

Evaded bolas can be picked up and used again. The chance of entangling a target in the bolas depends on your throwing skill and the target's evasion skill.

== Location ==
* Carried by the [[Sørmirbæren Krigsfar]]

== Other info ==
Stackable: Yes (5)

== History ==
* [[1.2.0.20]] - introduced

{{Weapons navbox}}
{{Utilities navbox|collapsed}}
[[Category:Items]]
[[Category:Utilities]]
[[Category:Throwing]]

Cave (Random dungeon 3)

2024-06-03T20:15:10Z

Harperfan7:

{{Location Infobox
| name = Cave
| type = Random dungeon
| control = none
| maptext =
| image = Random cave 3.png
| music = Caves.ogg
| world = Random low level area
| areas = Cave
| exits = North—Cave passage West—Cave passage East—Cave passage South—Cave passage
| npcs =
| mapfile = dun_lowLevelCave3
}}

'''Cave''' (unofficially '''low level cave 3''') is a [[random dungeon]].

== Description ==
It is a small cave-themed random dungeon that can appear in low level areas before Junkyard. Contains a corpse of a dead man with some loot, two respawning [[Mindshroom]]s and two [[Red Dream Mushroom]]s. It is inhabited by rathounds, the number of which depends on the difficulty. The small crevice can be leaped across via an agility check.

== Enemies ==
* [[Rathound]]s
* [[Rathound Alpha]]s

== Possible locations ==
This dungeon has potential cave passage type exits into all cardinal directions. It can only appear in low level areas.

The following entrance fragments can lead into this dungeon.
* [[Crossroad Caves]], [[:File:crossroadCave5 frag_xcaves5d.png|Fragment in Area 5]], south exit
* [[Cave (Random dungeon 2)|Low level cave 2 random dungeon]], random exit

== Map Gallery ==
Note that parts of random dungeon layout are different each time it appears. This is just an example.

<gallery widths=200px heights=127px>
dun_lowLevelCave3.png | Cave
</gallery>

{{Locations navbox}}
[[Category: Locations]]

Nexus Glass

2023-07-10T01:40:53Z

Harperfan7:

{{Expedition}}
{{infobox item
| itemquality = oddity
| image = Nexus Glass.png
| name = Nexus Glass
| type = Oddity
| description = A broken pair of high-tech glasses. Probably used to assist the scientist and engineers in their day to day tasks and definitely not to spy on the user.
| capabilities = Pick up: Study this item to gain 1 point of experience. You can study this type of item up to 2 times.
}}

'''Nexus Glass''' is an oddity in Black Sea.

== Locations ==
Found in the Nexus of Technology.
*One on level 9 in a cabinet at the south end.
*One on level 4 on a corpse in the north hallway.
*One on level 6 on a corpse in the room across from the elevator.

{{Oddities navbox}}
[[Category:Items]]
[[Category:Oddities]]

Persuasion

2023-05-31T14:25:52Z

Harperfan7: /* Related feats */

'''Persuasion''' is a social [[Skills|skill]].

{{Quote
| Your ability to convince the other party to see things your way through non-violent means.
| In-game description
}}

{{Synergies
|* [[Will (Base Ability)|Will]]
|* [[Mercantile]] 20%
}}

== Details ==
Persuasion is a social skill mainly used for persuasion dialogue options.

== Related items ==

Headwear
* {{Itemlink|Hypno Goggles}} (from +10 to +30)
* {{Itemlink|Iron Head}} (-20%)

Suit
* {{Itemlink|JKK Tactful Jacket}} (+15)
* Armor crafted from {{Itemlink|Heartbreaker Serpent Skin}}{{expedition-inline}} (+10)
* {{Itemlink|Praetorian Peacekeeper}} (+10)
* {{Itemlink|Praetorian Caped Peacekeeper}} (+10)
* {{Itemlink|Praetorian Chestguard}} (+10)
* Armor crafted from {{Itemlink|Rathound Leather}} (-3)
* Armor crafted from {{Itemlink|Mutated Dog Leather}} (-10)
* Armor crafted from {{Itemlink|Ancient Rathound Leather}} (-10)

Belt
* {{Itemlink|Master Demolitionist Belt}} (-30)

Boots
* {{Itemlink|Bespoke Buckle Shoes}} (+20)
* Armor crafted from {{Itemlink|Heartbreaker Serpent Skin}}{{expedition-inline}} (+10)
* Armor crafted from {{Itemlink|Rathound Leather}} (-3)
* Armor crafted from {{Itemlink|Mutated Dog Leather}} (-10)
* Armor crafted from {{Itemlink|Ancient Rathound Leather}} (-10)
* {{Itemlink|Jumping Stilts}} (-30)

Foodstuffs
* {{Itemlink|White Dude}} (+15)

== Related feats ==
* JKK tattoo (+15 persuasion)

== Persuasion skill checks ==
{{Incomplete list}}
{| class="sortable wikitable"
|-
! Character !! Related quest(s) !!data-sort-type="number"| Skill !! Result

|-
| [[Lucas]] || None || 10 || Get a .44 Hammerer
|-
| [[Lucas]] || None || 15 || Get a machete
|-
| [[Lucas]] || None || 17 || Get the [[Shoddy Shotgun]]
|-
| [[Pasquale]] || None || 15 || Get two extra psi boosters
|-
| [[Raider]] || [[GMS expedition]] || 5 || Be taken to their leader
|-
| [[Anna]] || [[Faceless' stolen object]] || 10 || Know what happened to Hugo
|-
| [[Elwood]] || [[Get Elwood's key]] || 25 || Lure him outside of the gambling house
|-
| [[Cliff]] || [[Save Jenny]] || 30 || Start the quest
|-
| [[Gorsky]] || [[GMS expedition]] || 30 || Keep the keycard
|-
| [[Deputy]] || [[Abram's bug]] || 30 || Persuade him to leave the room
|-
| [[Katherine]] || [[Find Blaine]]/[[Kill Blaine]] || 35 || Get [[Blaine]]'s location for free
|-
| [[Old Jonas]] || [[Find Blaine]]/[[Kill Blaine]] || 35 || Get [[Blaine]]'s location (Can be bypassed if the player returned his watch without asking for anything in return)
|-
| [[Joey]] || [[Faceless' stolen object]] || 35 || Allows to negotiate with [[Jacek]]
|-
| [[Vince]] || None || 40 || Pass without having to pay
|-
| [[Gangster]] ([[Drop Zone]]) || [[Recover tunneler]] || 40 || Convince gangsters to leave
|-
| [[Oskar]] || [[Meet Lenox Pierce]] || 40 || {{spoiler|Get information from him for free}}
|-
| [[Sarine]] || [[Kidnap Sarine]] || 40 || Lure her out of the camp
|-
| [[Johnny Filth]] || [[Deploy second T-ray emitter]] || 45 || Leave without having to pay or fight [[Zone Boyz]]
|-
| [[Tanner]] || [[Get support for Black Eels]] || 45 or 50 || Get support from SGS
|-
| [[Myles]] || [[Find EMP device]] || 50 || Get his help for free
|-
| [[Phreak]] || [[Run the Gauntlet]] || 50 || Rig the Gauntlet in your favor
|-
| [[Delma]] || [[Everard's assignment]] || 55 || Convince her to allow player to talk with [[Todor]]
|-
| [[Holloway]] || [[Renegade soldiers]] || 55 || Convince him to surrender
|-
| [[Adira]] and [[Beatrice]] || [[Forsaken Island Behemoth]] || 55 || Skip the fight
|-
| [[Mayor]] || [[Study the rock creatures]] || 60 || Allows to start the quest before gaining the trust of [[Chief|Chief Banner]]
|-
| [[Edgar]] || [[Kill the Rathound King]] || 60 || Successfully negotiate a truce between Camp Hathor and the Rathound King
|-
| [[Faceless Mindreader]] || [[Save Buzzer]] || 60 || Save Buzzer peacefully{{spoiler| (see [[Befriend the Faceless | Faceless relations]])}}
|-
| [[Delma]] || [[Everard's assignment]] || 65 || Get access to the surveillance room
|-
| [[Bandit]] ([[Secluded Station]]) || [[Train heist]] || 70 || Convince bandits to leave
|-
| [[Private Lloyd]] || [[Rob Protectorate warehouse]] || 70 || Allows to walk via front entrance
|-
| [[Lunatic Scanner]] ([[Synesthete camp]]) || None || 70 || Allows to enter the camp (Can be bypassed if player is a [[Psi Empathy|psionic]] or joined {{spoiler|[[Oculus]]}})
|-
| [[Colonel Cathcart]] || [[Renegade soldiers]] || 75 || Convince him to investigate Holloway's claims
|-
| [[Phreak]] || None || 85 || Make him trust you in the initial encounter
|-
| [[Synesthete]] || None || 90 || Be able to talk your way out of the ritual without being [[Psi Empathy|psionic]]
|-
| [[Mordre]] || [[Meet Lenox Pierce]] || 90 || {{spoiler|Convince him to confess}}
|-
| [[Mordre]] || [[Meet Lenox Pierce]] || 95 || {{spoiler|To let him go peacefully}}
|-
| [[Curator Nenna]] || None || 100 || Obtain access to download data from Eidein's Library
|-
| [[IRIS]] || [[Restore Arke powergrid]] || 110 || Allows to skip the fight with her
|-
| [[Jacek]] || [[Faceless' stolen object]] || Impossible || Persuade Jacek to let [[Hugo]] go

|}

{| class="sortable wikitable"
|+ Checks in [[Underrail: Expedition]]
|-
! Character !! Related quest(s) !!data-sort-type="number"| Skill !! Result

|-
| [[Matriuss Ludenlof]] || [[The tracking device]] || 40 || Persuade him to give you [[Ludenlof Coin Pouch|his coin pouch]] as a reward
|-
| Gray Army Soldiers || [[Dude's other quest]] || 40 || Allows to avoid combat when talked to in Main Hall when wearing [[Gray Soldier Armor]]
|-
| Gray Army Soldiers || [[Dude's other quest]] || 60 || Allows to avoid combat when talked to in the Magatzin when wearing [[Gray Soldier Armor]]
|-
| Gray Army Soldiers || [[Dude's other quest]] || 70 || Allows to avoid combat when talked to in the Magatzin when wearing [[Gray Officer Armor]]
|-
| [[Gray Army Officer]]s || [[Dude's other quest]] || 50 || Allows to avoid combat when talked to in Main Hall when wearing [[Gray Officer Armor]]
|-
| [[Gray Army Officer]]s || [[Dude's other quest]] || 60 || Allows to avoid combat when talked to in the Schtab when wearing [[Gray Officer Armor]]
|-
| [[Gray Army Officer]]s || [[Dude's other quest]] || 70 || Allows to avoid combat when talked to in the Schtab when wearing [[Gray Soldier Armor]]
|-
| [[Exiled Mutie Guard]] || [[Recover the A-RFID Chip]] || 45 || Allows to enter the [[Mutie Refuge]]
|-
| [[Doctor Savage]] || [[Recover the A-RFID Chip]] || 50 || Persuade him to provide some medical supplies for the Black Sea Muties
|-
| [[Kaya]] || [[Ion's missing group]] || 65 || Find a way to mend relationship with brother
|-
| [[Chief Briggs]] || [[Join the Expedition]] || 80 || Allows you to join the Expedition
|-
| [[Wesley]] || [[Recover the A-RFID Chip]] || 80 || Persuade Wesley to trust the player and allow access into the [[West Storage Depot]] before the player has delivered medical supplies
|-
| [[Black Eels]] || [[The Rig Attack]] || 80 || Allows the infiltrate [[The Rig]] while wearing [[Work Coverall]]
|-
| [[Captain Grim]] || [[First raid]] || 80 || Persuade the captain to let you do the raid on your own
|-
| [[Captain Grim]] || None || 90 || Allows the player to join the pirates while negotiating for {{spoiler|the professor's release}}
|-
| [[Captain Grim]] || [[Second raid]] || 105 or 125 || Persuade the captain to let you do the raid on your own
|}

{{Skills navbox}}
[[Category:Skills]]

Filled Tooth

2023-05-30T04:34:23Z

Harperfan7:

{{infobox item
| itemquality = oddity
| image = oddity106.png
| name = Filled Tooth
| type = Oddity
| description = This tooth has a dental filling, which can only mean...
| capabilities= Pick up: Study this item to gain 2 points of experience. You can study this type of item up to 2 times.
}}

The '''Filled Tooth''' oddity can be found on Tchortling corpses in [[Deep Caverns]].

{{Oddities navbox}}
[[Category:Items]]
[[Category:Oddities]]

Tchortist Noble Robe

2023-05-29T07:37:42Z

Harperfan7:

{{infobox item
| image = Tchortist Noble Robe.png
| itemquality = unique
| name = Tchortist Noble Robe
| type = Armor Suit
| description = These robes are worn exclusively by the notability of Institute of Tchort. You can feel the Tchort's warm touch on your skin... or you might just be imagining things.
| onequip = Equip: Will increased by 1 {{color|red|Equip: Perception decreased by 1}} Equip: Resolve increased by 15% Equip: Thought Control increased by 25
| encumbrance = 10%
| weight = 2.00
| durability = 200 / 200 (fabric)
| value = 1000
| datafile = Armor/TchortistNobleRobe.item
}}

'''Tchortist Noble Robes''' are exclusively worn by the Tchortist nobles.

== Crafting ==
This item is not craftable.

== Location ==
* Worn by [[Tchortist Minister]]s.
** [[Minister Percival]]
** [[Minister Unas]]
** [[Judicator Azarias]]
* [[Institute of Tchort]], sleeping quarters 1 in a wardrobe in the locked northern room(70 [[Lockpicking]] required), across the hall from the pool/billiards table.

== History ==
* [[0.1.14.0]] - introduced

== Gallery ==
<gallery>
pl_tchnob.png | Male variant
pl_f_tchnob.png | Female variant
</gallery>

{{Armor navbox}}
[[Category:Items]]
[[Category:Armor]]
[[Category:Armor Suit]]
[[Category:Suits]]

Tchortist Robe

2023-05-29T07:35:21Z

Harperfan7:

{{infobox item
| image = robe1.png
| itemquality = high
| name = Tchortist Robe
| type = Armor Suit
| description = Just being in possession of these dark robes makes you uncomfortable.
| onequip = Equip: Stealth increased by 20 Equip: Intimidation increased by 20 {{color|red|Equip: Perception decreased by 2}}
| weight = 2.00
| datafile = Armor/TchortistRobe.item
}}

'''Tchortist Robe''' is the most common uniform of [[Tchortists]]. Offers no protection, but has a quite large [[Intimidation]] bonus.

== Crafting ==
This item is not craftable.

== History ==
* [[0.1.12.0]] - introduced

== Location ==
{{incomplete list}}
* Worn by [[Tchortist]]s
* One can be found in the institute in the classrooms section near Minister Percival. It's in the dark NE room in the wardrobe.

== Gallery ==
<gallery>
pl_tch.png | Male variant
pl_f_tch.png | Female variant
</gallery>

{{Armor navbox}}
[[Category:Items]]
[[Category:Armor]]
[[Category:Armor Suit]]
[[Category:Suits]]

Retake outpost for Gorsky

2023-05-18T05:04:31Z

Harperfan7:

{{Quest Infobox
| name = Retake outpost for Gorsky
| type = side
| image = Black_Crawlers_showdown.png
| location = [[Black Crawler camp]]
| givenby = [[Gorsky]]
| rewards = 4000 classic XP / 2 oddity XP
| related =
| previous = [[Recover tunneler]] [[Rob Protectorate warehouse]]
| next =
}}

After the preparations are complete, help Gorsky and Zone Rats take over the base of [[Black Crawlers]].

== Objectives ==
* Help Gorsky attack the Black Crawler camp. Meet him near the tunneler when you are ready.

== Walkthrough ==
This mission is a straightforward fight against the Black Crawlers. Talk to Gorsky near the fixed tunneler when ready to begin the assault.

On your side there will be 4-6 other fighters - Gorsky, Sneaky, two Zone Rats, and depending on whether you've recruited them Mykola and Dan.

:1. For Dan to show up, you must have gone to Foundry and asked him to join before talking to Gorsky at the tunneler.
:2. For Mykola to show up, you must have obtained his assistance in repairing the tunneler [[Recover_tunneler|previously]]. He will otherwise be missing from his shop while this quest is active, though he will reappear once it's over despite not having participated.

Everyone is equipped with the energy shield emitters you stole. The Black Crawlers have 7 fighters (more on DOMINATING difficulty) with no shield emitters. One of them has metal armor, but most are lightly armored or unarmored. As far as weapons go, they have two guys with sledgehammer, a stealth sniper, and a bunch of people with firearms and some grenades of which three also have psionic abilities - two of them using Cryokinesis and Cryostasis with the Hypothermia feat, and one using Pyrokinesis with the Pyromaniac feat.

Once the fight is over, any survivors on Zone Rats' side will stay in the base. Later on, a merchant, [[Dirty Tom]], will join them in their new base.

{{Core City navbox|collapsed}}
{{Missions navbox}}
[[Category:Quests]]

Pickpocket

2023-05-15T12:07:19Z

Harperfan7:

{{Ability Infobox
| image = Pickpocket.png
| nature = beneficial
| name = Pickpocket
| description = You attempt to steal an item from the target's pockets.
| time = 4.00s
| cooldown = 5s
}}
[[File:NewPickpocketing.jpg|right|300px|thumb|Pickpocketing in version [[0.1.8.0]]]]

{{for|the skill|Pickpocketing}}

'''Pickpocket''' is the ability used to steal from other characters.

== Description ==
Using the pickpocket ability attempts to open the NPC's inventory for viewing and stealing items. Succeeding requires a certain amount of pickpocketing skill depending on the target's detection.

When you are stealing items from an NPC you are filling up their '''suspicion''' meter. If you fill up this meter to the max you will be detected and combat will ensue. The game will indicate how much stealing a certain item will raise the suspicion meter. Suspicion bar will degrade very slowly over time spent on maps other than the one with the npc in question.

The rate at which you fill this meter will depend on the ratio between your pickpocketing skill and the victim's detection. Since the detection scales off of character's level and perception, this basically means that you'll have to continue investing points in the pickpocketing skill ''(and ideally dexterity as well)'' in order to be able to steal (or steal more) from progressively higher level NPCs. Also, some items are harder to steal than others ''(e.g. heavy weapons and armors in comparison to smaller stuff like ammo and hypos)''.

{| class="wikitable"
|+ Stealing difficulty
! Category !! Difficulty
|-
| Default || 100%
|-
| Money || 115%
|-
| Ammo || 75%
|-
| Ammo, Heavy || 135%
|-
| Weapon || 140%
|-
| Weapon, Heavy || 180%
|-
| Armor || 200%
|-
| Armor, Heavy || 300%
|-
| Thrown Weapon || 100%
|-
| Trap || 150%
|-
| Vehicle Part || 1000%
|}

The way this system is set up it means that, unlike lockpicking and hacking, the outcome is not binary. Depending on your skill-to-detection ratio and the difficulty modifier of the item, you may be able to steal zero, one or more items from a given target. So investing more skill into pickpocketing will always be useful. Because there's no dice involved in the calculations, this will also eliminate the need for save scumming.

Pickpocketing does not require [[Stealth Mode|stealth]], unless of course you're trying to steal from a hostile NPC.

== Affected by ==
* [[Pickpocketing]] skill
** [[Dexterity]] affects pickpocketing

* [[Ninja Looter]] feat ''(reduces pickpocketing time and suspicion when hidden)''

== History ==
* [[1.0.3]]: Starting pickpocketing (opening the pickpocketing window) will now require a certain amount of pickpocketing skill depending on the target's detection
* [[0.1.14.0]]: NPC suspicion bar now degrades very slowly over time (updated when you re-enter the area)
* [[0.1.8.0]]: Pickpocketing was changed from a chance-based system to deterministic system

{{Abilities navbox}}
[[Category:Game mechanics]]
[[Category:Abilities]]

Ancient Rathound

2023-05-15T04:48:59Z

Harperfan7:

{{Character Infobox
| name = Ancient Rathound
| type = creature
| portrait = rathound_ancient_l.png
| background = cave.png
| level = 20
| health = 630
| image = Ancient Rathound model.png
| roles = Elder rathounds
| location = [[Rathound King Lair]] [[Core City Arena]] [[Deep Caverns]] [[Caerus Residential]] [[Rathound Lair (Deep Caverns)|Rathound Lair]] [[Hunting Grounds]] [[Abandoned Warehouse]]{{DOMINATING}} [[Lower Underrail]]{{DOMINATING}} [[Lower Caves]]{{DOMINATING}} [[Upper Caves]]{{DOMINATING}}
| loot = Animal organs [[Ancient Rathound Tooth]] [[Ancient Rathound Leather]]
| abilities = Gains [[Pack Hunting]] in groups [[Rend]] attack Immune to [[stun]] Immune to flashbang effects [[Conditioning]]
| range = Melee
| damage = {{Mechanical|50-80|number only}} ({{Mechanical|121-193|number only}})
| initiative = 18
| actionpoints = 50
| detection = 194
|
|Base abilities section:
| strength = 14
| dexterity = 7
| agility = 6
| constitution = 14
| perception = 12
| will = 4
| intelligence = 3
|
|Skills section:
| melee = 110 (203)
| dodge = 35 (43)
| evasion = 35 (43)
| intimidation = 110 (203)
|
| mechanical = 15% / 5
| heat = 0% / 0
| cold = 15% / 5
| electricity = 0% / 0
| acid = 0% / 0
| energy = 0% / 0
| bio = 0% / 0
}}
{{main|Rathound}}

== Ancient Rathound ==
[[Ancient Rathound]]s are particularly strong and cunning, long-lived rathounds. They are much larger and tougher than any common rathounds. They have washed out gray hide.

Unlike their lesser counterparts, they are not afraid of fire, cannot be stunned and their thicker fur provides some {{mechanical}} and {{cold}} resistance, furthermore the [[Conditioning]] feat gives them an additional 19% {{mechanical}}, {{heat}} and {{cold}} reduction. They have a stealth detection threshold of about 80 (82 is enough to not be insta-detected).

They have a [[Rend]] attack like [[Rathound Alpha]]s, albeit a more powerful one.

There is also a psionic ancient rathound named [[Jookhela]] in [[Core City Sewers]].

{{Enemies navbox}}
[[Category: Critters]]
[[Category: Rathounds]]

Investigate Lemurian Health Center

2023-05-06T02:51:36Z

Harperfan7:

{{Expedition}}
{{Quest Infobox
| name = Investigate Lemurian Health Center
| type = expedition
| image = MRI.png
| location = [[Lemurian Health Center]]
| givenby = [[Professor Oldfield]]
| rewards = 2000 classic XP / 2 oddity XP 500 [[Stygian Coin]]s
| related =
| previous = [[Investigate Nexus of Technology]]
| next = [[Investigate Joint Security Headquarters]]
}}

After talking to [[Professor Oldfield]] about the true purpose of the expedition, he will give you the next set of sites to investigate. It is necessary to get through the Health Center before you are able to make it past the scanners at the [[Joint Security Headquarters]].

== Objectives ==
* Investigate Lemurian Health Center, located at coordinates I1. Report your findings to Professor Oldfield
* You've found a microchip implantation/extraction unit at the Lemurian Health Center. Find out if it's still functional

== Walkthrough ==
Head southeast from the [[Black Sea Expedition Camp]], and around [[Port Ceto]] until you reach the Port Ceto-Destroyer. Then, go east to a decrepit tower, and south along the shoreline to arrive at your destination. If [[Grim Jetters]] have turned hostile, you can also sneak pass their territory at [[I3]]. A [[Scrap Jet]] can be found behind a tunnel with a few pirates and pitbulls.

'''Note:''' You can't leave the health center halfway with insufficient [[Will (Base Ability)|Will]].

Once inside you should go to the northwestern corner of the lobby, where you'll find a console. Choose 'summon available servants' in order to get the Receptionist to her post. Talk to her, and you might start to notice something strange is going on. She'll open one of the three doors to a new part of the hospital. Once in the new section, you'll start to encounter the first of many visions, you'll get one every room. With each encounter you'll be given the choice to comply, or resist granted that you're able to succeed a will check. Note that if you resist every time, you will not be able to get the [[Body Horror]] feat, but will get to leave without facing the final encounter. If you comply, the opposite is true.

After making first contact, search the room for valuables before talking to [[Deathman]]. Consider equipping some form of shock damage, or planting traps, as regardless of your dialogue choices, He will storm off while [[Strongman]] and [[Handmaiden]] scatter out. Once you've dealt with them, return to the lobby to find a new door open. In the next room you'll find [[Lifeman]] on the south end, who insists on opening a door in spite of the fact that there is a perfectly good hole in the neighboring wall. Either make a strength check to help him open it (12 strength required, or 8 and a crowbar), or charge his battery up to full (1300 energy required) to get him through. The latter option requires quite a few batteries, but you can find some throughout the facility. Afterwards, more hostile servants will run amok (unless you walk out through the hole rather than the newly-opened gate). The microchip unit should also be present in the northwestern corner, which you can access by either lockpicking into the room or finding its corresponding [[Microchip Implantation Room Key (Lemurian Health Center)|key]] in the southern part of health center. Stick your good friend [[Phil]] into the machine to commandeer his chip, and implant it in your hand. This awards the player with 2 oddity or 2000 classic XP and will allow you to get past the scanners at the Security Headquarters.

Once you're back in the lobby, go through the final set of doors and work your way south through the hostile servants. There's an MRI scanner, which you can restore power to with 100 [[Electronics]] and by using an advanced electronic repair kit on the power box in the southeastern corner - activating the machine will short-circuit any [[Handmaiden]] or [[Strongman]] that enters the room. Once you're done head through the elevator and into the morgue. There's a freezer you can enter, either through hacking or a ventilation shaft, which has a [[Lemurian Blaster]] inside. The only other room has the last of the 4 named servants, who will offer you a choice depending on your reaction to the visions. If you resisted every encounter, you'll only be able to leave without entering the final chamber. A Will check can be selected to enter the dark room (succeeded with 14 Will, failed with 12). If you complied with every encounter, you will have to face the source of the hospital phenomenon in order to leave, and consequently gain the Body Horror feat. Alternatively, you can initiate hostilities and leave without entering the room after destroying the final servant. Once you've finished your business, simply exit the way you came in and report back to the professor.

{{Missions/Expedition navbox}}
[[Category: Quests]]

Depot A north

2023-05-01T21:03:37Z

Harperfan7: /* Description */

{{Location Infobox
| name = Depot A north
| type = Zone
| control = none
| maptext = The original junkyard. Now a dangerous place overrun by mutants.
| image = Depot A north.png
| music = WarehouseHorror.ogg
| world = [[Junkyard]]
| areas = [[Depot A north]]
| exits = [[Depot A east]] [[Depot A south]] [[Depot A west]] [[Lower Depot A west]]
| npcs =
| mapfile = Ojy3.png
}}

'''Depot A north''' is an area part of [[Depot A]], a dungeon in [[Junkyard]].

== Description ==

This location is part of the underground level of the [[Depot A]] dungeon within the [[Junkyard]].

* 1 respawning [[Mindshroom]]
* The house in the SE corner:
** The locker requires 55 [[Lockpicking]]
** The shelves contain a [[Blueprint: Serrated Bolt]]
* Along the wall to the west is a box requiring 55 [[Hacking]]
* The electronic lock on the west wall requires the [[Inner Gate Keycard (Old Junkyard)]]. The gate it opens leads to [[Depot A west]].
* The middle house block:
** The west door requires 55 [[Lockpicking]]
** The south door requires 55 [[Lockpicking]]
** Has a box requiring 55 [[Hacking]]
** Has a locker containing a [[Painted Welding Helmet]] oddity, 1 XP
* The small shack east of the concrete building:
** Has a locker requiring 55 [[Lockpicking]] which contains an [[Empty Mutagen Container]] oddity, 2 XP
* The concrete bunker in the NW corner:
** Has a trap door leading to the NE room of [[Lower Depot A west]]
** The shelves in the middle contain a [[Scrapture]] oddity, 1 XP
** The west door is locked, can be opened by interacting with security console in [[Depot A east]], requires level 1 security access

== NPC ==
* [[Mutant]]s
* [[Mutated Dog]]s

== Map Gallery ==
<gallery widths=200px heights=127px>
Ojy3.png | Depot A north
</gallery>

{{Locations navbox}}
[[Category:Locations]]
[[Category:Dungeons]]

Kill Blaine

2023-04-30T20:01:29Z

Harperfan7:

{{Quest Infobox
| name = Kill Blaine
| type = unmarked
| image = Blaine's shop.png
| location = [[Junkyard - Depot B]] [[Lower Underrail]] tunnels
| givenby = [[Eddy]]
| rewards = ? classic XP / 0 oddity XP 1000 [[Stygian Coin]]s
| related =
| previous =
| next =
}}

Eddy in Depot B wants you to find and kill [[Blaine]] for a hefty reward.

'''NOTE:''' If you complete this quest before finishing [[Find Blaine]] quest, you cannot do the last quests for Black Eels!

== Objectives ==
N/A

== Walkthrough ==
Blaine can be found in his shop if you've visited it before, during [[Find Blaine]] quest or otherwise. As of version 1.0.1.4 you can kill Blaine with a [[Toxic Gas Grenade]] because throwing it somehow does not provoke him and his guards.

{{Missions navbox}}
[[Category:Quests]]

Black Sea

2022-10-18T20:25:55Z

Harperfan7:

{{stub}}
{{Expedition}}

The Black Sea is also known as Hell's Gut. It is a large underground sea in a giant cavern.
There are two major factions in control of the Black Sea:
* The pirates which call themselves [[Grim Jetters]] and control the southern and southeastern waters
* The natives, known as the Sørmirbæren or serpentborn, who control the northern and northwestern shores

== South and west sea ==

=== A5 ===
* Has a ladder leading to an underground location filled with gas and a box requiring 80 [[Hacking]] to open. It contains high quality crafting components.

=== A6 ===
* Has [[Message in a Bottle]] oddity in a rubble pile.
* In the SW part blocked by rocks (use [[TNT]] or [[Jackhammer]]) is a pool (nothing can be fished in it - the current is too strong), that teleports you to one of several random cave fragments with various enemies and loot.
* Has four sources of [[Honey Spores]], three [[Cave Ear|Cave Ears]] (behind the rocks) and one [[Green Wart]]
* Western exit leads to the siphoner pools (no ID via NavCom -A6?)

=== -A6 (siphoner pools west of A6) ===
* Has [[Forked Rock]] oddity in a rubble pile.
* Has [[Greater Siphoner|Greater Siphoners]] and [[Siphoner|Siphoners]]
* Northern part can be reached by jumping over ([[Agility|7 Agility]]) or by discovering a hidden underwater bridge. Here you can get to the crevice, which you can put your hand into that contains a randomized item (can also be empty, and you can get bit by something for 1 hp damage).
* [[Ghostface]], [[Phantom Jelly]] and [[Frogfish]] can be fished here.

=== -B6 (siphoner pools west of -A6) ===
* Has hidden Buried Box with some [[SGS Credits]], [[Stygian Coin|Stygian Coins]] and [[United Stations Dollar|United Stations Dollars]]. Guarded by several [[Greater Siphoner|Greater Siphoners]].

=== A7 ===
* A [[Hermit Crab]] mimics a chest here.

=== A8 ===
* NW part contains an entrance to the cave, that you can peek into (8 [[Perception]] required) to see [[Sørmirbæren Skærder]] performing some ritual before a totem.

=== A10 ===
* Has [[Forked Rock]] oddity in a rubble pile.
* Has a bear-trapped passage to [[Yngwar]].

=== B5 ===
* Has [[Leper Serpent]]s

=== B7 ===
* [[Mutie Refuge]]
* Holds an entrance to [[West Storage Depot]]

=== B8 ===
* No places of interest here {{verify}}

=== C10 ===
* Has [[Forked Rock]] oddity in a rubble pile.
* Holds an entrance to the spider caves.

=== D9 ===
* Has [[Leper Serpent]]s

=== D10 ===
* There is a native outpost here
* Has [[Message in a Bottle]] oddity in a rubble pile
* At the top of the lighthouse is [[Sørmirbæren Bäsekar]]

<gallery widths=200px heights=127px>
Xpbl a5.png | A5
Xpbl a5 1.png | A5 underground
Xpbl b5.png | B5
Xpbl c5.png | C5
Xpbl c6.png | C6
</gallery>

== Map gallery ==

<gallery widths=200px heights=127px>
Black_Sea_map.png | Black Sea
Black_Sea_map_with_locations.png | Black Sea with coordinates and locations
</gallery>

{{Locations navbox|collapsed}}
{{Locations/Expedition navbox}}
[[Category:Locations]]

Black Sea

2022-10-18T20:25:08Z

Harperfan7:

{{stub}}
{{Expedition}}

The Black Sea is also known as Hell's Gut. It is a large underground sea in a giant cavern.
There are two major factions in control of the Black Sea:
* The pirates which call themselves [[Grim Jetters]] and control the southern and southeastern waters
* The natives, known as the Sørmirbæren or serpentborn, who control the northern and northwestern shores

== South and west sea ==

=== A5 ===
* Has a ladder leading to an underground location filled with gas and a box requiring 80 [[Hacking]] to open. It contains high quality crafting components.

=== A6 ===
* Has [[Message in a Bottle]] oddity in a rubble pile.
* In the SW part blocked by rocks (use [[TNT]] or [[Jackhammer]]) is a pool (nothing can be fished in it - the current is too strong), that teleports you to one of several random cave fragments with various enemies and loot.
* Has four sources of [[Honey Spores]], three [[Cave Ear|Cave Ears]] (behind the rocks) and one [[Green Wart]]
* Western exit leads to the siphoner pools (no ID via NavCom -A6?)

=== -A6 (siphoner pools west of A6) ===
* Has [[Forked Rock]] oddity in a rubble pile.
* Has [[Greater Siphoner|Greater Siphoners]] and [[Siphoner|Siphoners]]
* Northern part can be reached by jumping over ([[Agility|7 Agility]]) or by discovering a hidden underwater bridge. Here you can get to the crevice, which you can put your hand into. Surprisingly, it is empty{{verify}}.
* [[Ghostface]], [[Phantom Jelly]] and [[Frogfish]] can be fished here.

=== -B6 (siphoner pools west of -A6) ===
* Has hidden Buried Box with some [[SGS Credits]], [[Stygian Coin|Stygian Coins]] and [[United Stations Dollar|United Stations Dollars]]. Guarded by several [[Greater Siphoner|Greater Siphoners]].

=== A7 ===
* A [[Hermit Crab]] mimics a chest here.

=== A8 ===
* NW part contains an entrance to the cave, that you can peek into (8 [[Perception]] required) to see [[Sørmirbæren Skærder]] performing some ritual before a totem.

=== A10 ===
* Has [[Forked Rock]] oddity in a rubble pile.
* Has a bear-trapped passage to [[Yngwar]].

=== B5 ===
* Has [[Leper Serpent]]s

=== B7 ===
* [[Mutie Refuge]]
* Holds an entrance to [[West Storage Depot]]

=== B8 ===
* No places of interest here {{verify}}

=== C10 ===
* Has [[Forked Rock]] oddity in a rubble pile.
* Holds an entrance to the spider caves.

=== D9 ===
* Has [[Leper Serpent]]s

=== D10 ===
* There is a native outpost here
* Has [[Message in a Bottle]] oddity in a rubble pile
* At the top of the lighthouse is [[Sørmirbæren Bäsekar]]

<gallery widths=200px heights=127px>
Xpbl a5.png | A5
Xpbl a5 1.png | A5 underground
Xpbl b5.png | B5
Xpbl c5.png | C5
Xpbl c6.png | C6
</gallery>

== Map gallery ==

<gallery widths=200px heights=127px>
Black_Sea_map.png | Black Sea
Black_Sea_map_with_locations.png | Black Sea with coordinates and locations
</gallery>

{{Locations navbox|collapsed}}
{{Locations/Expedition navbox}}
[[Category:Locations]]

The Rig Attack

2022-10-15T02:54:47Z

Harperfan7:

{{Quest Infobox
| name = The Rig Attack
| type = side
| image = The Rig Attack.png
| location = [[Port Ceto]]
| givenby = [[Captain Grim]]
| rewards = Group: 2000 classic XP / 2 oddity XP 400 [[Stygian Coin]]s Solo: 3000 classic XP / 3 oddity XP 700 [[Stygian Coin]]s
| related =
| previous = [[Second raid]]
| next =
}}

[[Captain Grim]] wants you to raid [[The Rig]] and destroy the sonar located there.

== Objectives ==
* The Black Eels have been using an advanced sonar system to detect and thwart pirate raiding parties, and it is located at the Eel-controlled Rig. Go there and investigate all you can about the Rig, its defenses and the sonar's exact location. Meet up with Cruzer's party at the ruins at the mid-eastern part of the Core Ring, north of a Protectorate outpost, after you've done so and continue with the plan.

== Walkthrough ==
{{expand section}}
The goal of the mission is to destroy the sonar found in the western part of the Rig accessible only from the east. If player has completed both of the previous raids alone, they will be given an option to convince captain to let you do it solo too.

There are few ways of how player can complete this quest.
* Frontal attack - by simply killing everyone as you move towards the sonar. If player has agreed to join the [[Cruzer]]'s party, they will be transported to the eastern part of the Rig. Player will be then tasked by him to disable the Auto-Turrets nearby. This can be done by pulling the switch in the power room in the south-east corner. This will however alert the [[Black Eel Heavy Gunner]] who will try to turn on the power again. Return to the disguised pirate ferry to give a signal to attack when ready.
* Stealthy approach - with high enough [[Stealth]], player can sneak their way through the Rig. The sonar is guarded by a [[Black Eel Cut-Throat]] who will become hostile if they spot the player, but it is possible to avoid detection if careful. Use a [[TNT Charge]] near the sonar while in stealth to destroy it.
* Infiltration - player can use [[Work Coverall]] to disguise themselves as a laborer working for the Black Eels. You will need to pass a [[Persuasion]] check (80 effective skill) in order to convince the guards to let you roam the Rig freely. If player has finished [[Gang showdown]] quest for Black Eels in the Junkyard and [[Dockmaster Silas]] is still alive, the persuasion check is lowered to 50 and an [[Intimidation]] option (40 effective skill) will also appear, allowing for easier infiltration. If player goes near the power room, they will be stopped by the heavy gunner, asking you to leave. With 95 [[Persuasion]] (persuasion check is lowered to 50 if player also has 50 effective [[Electronics]]), he will allow you to turn off the turrets. The western area is patrolled by two dogs which will become aggressive if they spot the player. With high enough [[Intimidation]] (90 effective skill), it is possible to endure the staring contest with the [[Doberman]], causing it to become indifferent. [[Pit Bull]] will however attack player immediately if it spots you. After approaching the sonar, the cut-throat will demand player to leave. With 95 [[Persuasion]] (persuasion check is lowered to 50 if player also has 50 effective [[Hacking]]), player can pretend to be the mechanic tasked to fix the sonar. After he goes away, player is free to destroy the sonar manually (as long as no-one notices you) or hack it (100 effective) in order to make it no longer work properly.
After job is done, return to the captain for your reward. If player managed to complete the mission on their own, they will be rewarded with bonus 1 oddity XP/1000 classic XP and 300 charons more.

'''NOTE:''' Destroying the sonar will have dire consequences for the waterways and all ferry captains will now ask for double the price for transporting to any location. After this quest, [[Pirates vs Merchants Naval Battles]] random event will become much more common and player will also sometimes encounter [[Pirates vs Black Eels Naval Battles]] and [[Pirates vs Protectorate Naval Battles]].

You can't get this quest if you destroyed the sonar before speaking with Grim.

{{Missions/Expedition navbox}}
[[Category:Quests]]

Supersoldier Drug

2022-07-27T06:25:59Z

Harperfan7:

{{infobox item
| itemquality = rarity
| image = Supersoldier Drug.png
| name = Supersoldier Drug
| type = Medicine
| description = Harder better faster...
| capabilities= Use: Increases strength, dexterity, agility, constitution, and perception by 2 and all combat skills by 20%. (AP: 10; Cooldown: 8 turns)
| weight = 0.10
| value = 1750
| datafile = Consumables\Medicine\SupersoldierDrug.item
}}

'''Supersoldier Drug''' is a very powerful combat drug.
{{clear}}

== Effect ==
{{Status Effect Infobox
| name = Supersoldier Drug
| nature = beneficial
| image = Super Soldier Drug.png
| description = strength, dexterity, agility, constitution, and perception increased by 2. All combat skills increased by 20%.
| duration = 4 turns (20 seconds)
}}

Lasts 4 turns. No known side effects.
{{clear}}

== Crafting ==
This item can be crafted with [[Blueprint: Supersoldier Drug]].

== Locations ==
* [[Master Skull Smasher]] carries one dose.
* [[Dead Gangster]] random event: two doses carried by [[Dandy Jack]]
* [[Ladelman]] sells two if the player has access to his special merchandise. Requires either a [[Mercantile]] check (100 effective skill required) or gaining access to the Black Sea expedition by being Invictus.
* Small chance to obtain one dose from crevice in [[Siphoner Pools (Black Sea)]]
* One dose can be found in [[Captain Grim|Captain Grim's]] safe.
* Up to three can be acquired in the [[Nexus of Technology]] from a medicine synthesis unit.

{{Consumables navbox}}
{{Status effect navbox|collapsed}}
[[Category:Items]]
[[Category:Consumables]]
[[Category:Medicine]]
[[Category:Status effects]]

Supersoldier Drug

2022-07-27T06:25:06Z

Harperfan7:

{{infobox item
| itemquality = rarity
| image = Supersoldier Drug.png
| name = Supersoldier Drug
| type = Medicine
| description = Harder better faster...
| capabilities= Use: Increases strength, dexterity, agility, constitution, and perception by 2 and all combat skills by 20%. (AP: 10; Cooldown: 8 turns)
| weight = 0.10
| value = 1750
| datafile = Consumables\Medicine\SupersoldierDrug.item
}}

'''Supersoldier Drug''' is a very powerful combat drug.
{{clear}}

== Effect ==
{{Status Effect Infobox
| name = Supersoldier Drug
| nature = beneficial
| image = Super Soldier Drug.png
| description = strength, dexterity, agility, constitution, and perception increased by 2. All combat skills increased by 20%.
| duration = 4 turns (20 seconds)
}}

Lasts 4 turns. No known side effects.
{{clear}}

== Crafting ==
This item can be crafted with [[Blueprint: Supersoldier Drug]].

== Locations ==
* The Master Demolitionist sledger has one dose.
* [[Dead Gangster]] random event: two doses carried by [[Dandy Jack]]
* [[Ladelman]] sells two if the player has access to his special merchandise. Requires either a [[Mercantile]] check (100 effective skill required) or gaining access to the Black Sea expedition by being Invictus.
* Small chance to obtain one dose from crevice in [[Siphoner Pools (Black Sea)]]
* One dose can be found in [[Captain Grim|Captain Grim's]] safe.
* Up to three can be acquired in the [[Nexus of Technology]] from a medicine synthesis unit.

{{Consumables navbox}}
{{Status effect navbox|collapsed}}
[[Category:Items]]
[[Category:Consumables]]
[[Category:Medicine]]
[[Category:Status effects]]

Silencer

2022-07-21T02:36:59Z

Harperfan7:

{{infobox item
| image = Silencer.png
| itemquality = normal
| name = Silencer
| type = Component
| description = Can be used when crafting 5mm caliber firearms to make them silent.
| skillsreq = :Mechanics 25
| weight = 0.10
| value = 500
| datafile = Components\Weapons\Silencer.item
}}

'''Silencer''' is a firearm part. It can be used to completely [[Noise|silence]] 5mm pistols or SMGs, and grants +5% precision, but also lowers damage a bit. It can not be used together with other barrel enhancements.

== Used in ==
* [[Blueprint: Pistol]] (optional)
* [[Blueprint: SMG]] (optional)

{{Component navbox}}
[[Category:Items]]
[[Category:Components]]
[[Category:Pistol Enhancements]]
[[Category:SMG Enhancements]]
[[Category:Firearm parts]]

Silencer

2022-07-21T02:36:24Z

Harperfan7:

{{infobox item
| image = Silencer.png
| itemquality = normal
| name = Silencer
| type = Component
| description = Can be used when crafting 5mm caliber firearms to make them silent.
| skillsreq = :Mechanics 25
| weight = 0.10
| value = 500
| datafile = Components\Weapons\Silencer.item
}}

'''Silencer''' is a firearm part. It can be used to completely [[Noise|silence]] 5mm pistols or SMGs, and grants +5% precision. It can not be used together with other barrel enhancements.

== Used in ==
* [[Blueprint: Pistol]] (optional)
* [[Blueprint: SMG]] (optional)

{{Component navbox}}
[[Category:Items]]
[[Category:Components]]
[[Category:Pistol Enhancements]]
[[Category:SMG Enhancements]]
[[Category:Firearm parts]]

Persuasion

2022-07-13T20:02:55Z

Harperfan7:

'''Persuasion''' is a social [[Skills|skill]].

{{Quote
| Your ability to convince the other party to see things your way through non-violent means.
| In-game description
}}

{{Synergies
|* [[Will (Base Ability)|Will]]
|* [[Mercantile]] 20%
}}

== Details ==
Persuasion is a social skill mainly used for persuasion dialogue options.

== Related items ==

Headwear
* {{Itemlink|Hypno Goggles}} (from +10 to +30)

Suit
* {{Itemlink|JKK Tactful Jacket}} (+15)
* Armor crafted from {{Itemlink|Heartbreaker Serpent Skin}}{{expedition-inline}} (+10)
* {{Itemlink|Praetorian Peacekeeper}} (+10)
* {{Itemlink|Praetorian Caped Peacekeeper}} (+10)
* {{Itemlink|Praetorian Chestguard}} (+10)
* Armor crafted from {{Itemlink|Rathound Leather}} (-3)
* Armor crafted from {{Itemlink|Mutated Dog Leather}} (-10)
* Armor crafted from {{Itemlink|Ancient Rathound Leather}} (-10)

Boots
* Armor crafted from {{Itemlink|Heartbreaker Serpent Skin}}{{expedition-inline}} (+10)
* Armor crafted from {{Itemlink|Rathound Leather}} (-3)
* Armor crafted from {{Itemlink|Mutated Dog Leather}} (-10)
* Armor crafted from {{Itemlink|Ancient Rathound Leather}} (-10)

Foodstuffs
* {{Itemlink|White Dude}} (+15)

== Related feats ==
* none

== Persuasion skill checks ==
{{Incomplete list}}
{| class="sortable wikitable"
|-
! Character !! Related quest(s) !!data-sort-type="number"| Skill !! Result

|-
| [[Lucas]] || None || 10 || Get a .44 Hammerer
|-
| [[Lucas]] || None || 15 || Get a machete
|-
| [[Lucas]] || None || 17 || Get the [[Shoddy Shotgun]]
|-
| [[Pasquale]] || None || 15 || Get two extra psi boosters
|-
| [[Raider]] || [[GMS expedition]] || 5 || Be taken to their leader
|-
| [[Anna]] || [[Faceless' stolen object]] || 10 || Know what happened to Hugo
|-
| [[Cliff]] || [[Save Jenny]] || 30 || Start the quest
|-
| [[Gorsky]] || [[GMS expedition]] || 30 || Keep the keycard
|-
| [[Katherine]] || [[Find Blaine]]/[[Kill Blaine]] || 35 || Get [[Blaine]]'s location for free
|-
| [[Old Jonas]] || [[Find Blaine]]/[[Kill Blaine]] || 35 || Get [[Blaine]]'s location (Can be bypassed if the player returned his watch without asking for anything in return)
|-
| [[Gangster]] ([[Drop Zone]]) || [[Recover tunneler]] || 35 || Convince gangsters to leave
|-
| [[Joey]] || [[Faceless' stolen object]] || 35 || Allows to negotiate with [[Jacek]]
|-
| [[Vince]] || None || 40 || Pass without having to pay
|-
| [[Oskar]] || [[Meet Lenox Pierce]] || 45 || {{spoiler|Get information from him for free}}
|-
| [[Johnny Filth]] || [[Deploy second T-ray emitter]] || 45 || Leave without having to pay or fight [[Zone Boyz]]
|-
| [[Tanner]] || [[Get support for Black Eels]] || 45 or 50 || Get support from SGS
|-
| [[Myles]] || [[Find EMP device]] || 50 || Get his help for free
|-
| [[Phreak]] || [[Run the Gauntlet]] || 50 || Rig the Gauntlet in your favor
|-
| [[Edgar]] || [[Kill the Rathound King]] || 60 || Successfully negotiate a truce between Camp Hathor and the Rathound King
|-
| [[Faceless Mindreader]] || [[Save Buzzer]] || 60 || Save Buzzer peacefully{{spoiler| (see [[Befriend the Faceless | Faceless relations]])}}
|-
| [[Private Lloyd]] || [[Rob Protectorate warehouse]] || 70 || Allows to walk via front entrance
|-
| [[Phreak]] || None || 85 || Make him trust you in the initial encounter
|-
| [[Synesthete]] || None || 90 || Be able to talk your way out of the ritual without being [[Psi Empathy|psionic]]
|-
| [[Mordre]] || [[Meet Lenox Pierce]] || 90 || {{spoiler|Convince him to confess}}
|-
| [[Mordre]] || [[Meet Lenox Pierce]] || 95 || {{spoiler|To let him go peacefully}}
|-
| [[Curator Nenna]] || None || 100 || Obtain access to download data from Eidein's Library
|-
| [[IRIS]] || [[Restore Arke powergrid]] || 110 || Allows to skip the fight with her
|-
| [[Jacek]] || [[Faceless' stolen object]] || Impossible || Persuade Jacek to let [[Hugo]] go

|}

{| class="sortable wikitable"
|+ Checks in [[Underrail: Expedition]]
|-
! Character !! Related quest(s) !!data-sort-type="number"| Skill !! Result

|-
| [[Matriuss Ludenlof]] || [[The tracking device]] || 40 || Persuade him to give you [[Ludenlof Coin Pouch|his coin pouch]] as a reward
|-
| Gray Army Soldiers || [[Dude's other quest]] || 40 || Allows to avoid combat when talked to in Main Hall when wearing [[Gray Soldier Armor]]
|-
| Gray Army Soldiers || [[Dude's other quest]] || 60 || Allows to avoid combat when talked to in the Magatzin when wearing [[Gray Soldier Armor]]
|-
| Gray Army Soldiers || [[Dude's other quest]] || 70 || Allows to avoid combat when talked to in the Magatzin when wearing [[Gray Officer Armor]]
|-
| [[Gray Army Officer]]s || [[Dude's other quest]] || 50 || Allows to avoid combat when talked to in Main Hall when wearing [[Gray Officer Armor]]
|-
| [[Gray Army Officer]]s || [[Dude's other quest]] || 60 || Allows to avoid combat when talked to in the Schtab when wearing [[Gray Officer Armor]]
|-
| [[Gray Army Officer]]s || [[Dude's other quest]] || 70 || Allows to avoid combat when talked to in the Schtab when wearing [[Gray Soldier Armor]]
|-
| [[Doctor Savage]] || [[Recover the A-RFID Chip]] || 50 || Persuade him to provide some medical supplies for the Black Sea Muties
|-
| [[Kaya]] || [[Ion's missing group]] || 65 || Find a way to mend relationship with brother
|-
| [[Chief Briggs]] || [[Join the Expedition]] || 80 || Allows you to join the Expedition
|-
| [[Wesley]] || [[Recover the A-RFID Chip]] || 80 || Persuade Wesley to trust the player and allow access into the [[West Storage Depot]] before the player has delivered medical supplies
|-
| [[Captain Grim]] || [[First raid]] || 80 || Persuade the captain to let you do the raid on your own
|-
| [[Captain Grim]] || None || 90 || Allows the player to join the pirates while negotiating for {{spoiler|the professor's release}}
|-
| [[Captain Grim]] || [[Second raid]] || 105 or 125 || Persuade the captain to let you do the raid on your own
|}

{{Skills navbox}}
[[Category:Skills]]

ACoNR (Abyssal Station Zero)

2022-07-06T07:39:40Z

Harperfan7:

{{Expedition}}
{{Spoiler warning}}
{{infobox item
| itemquality = artifact
| image = ACoNR.png
| name = ACoNR (Abyssal Station Zero)
| type = Misc.
| description = ACoNR is written on its top face, just below a white symbol most resembling a diagonally placed egg whose upper half is enclosed by a semicircle with a bent stalk at the very top. It appears to be a container of some kind, one that seems to open horizontally in the middle; you are, however, unable to find the means by which to do so - there are no handles, no locks, no buttons, touchscreens or visible sensors. Additionally, the robust casing easily discourages brute force, at least by more conventional means. Whatever is inside, it is likely invaluable.
| weight = 4.00
| datafile = plot\xpbl\acorn.item
}}

'''ACoNR''', also colloquially known as '''Acorn''', is a plot item in [[Underrail: Expedition]]. It is located in Research and Development dome of Abyssal Station Zero.

== Purpose ==
It is a spherical supercomputer, a living AI controlling billions of nanobots created before the Descent to fulfill a grand design predetermined in the original blueprint for each Acorn, of which there are several in existence across the world. It is a highly adaptive program that is capable of achieving the design almost independently of conditions it finds itself in. Ezra states that although NFT manufactured the devices for themselves and other major supercorporations of the Old World, the technology itself was so advanced that even at the moment of discussion the device seems to have come from future far and distant.

The Acorn is protected by quantum near-field locks, and is impossible to brute force open, as the device is geared for self-destruction in such an event.

== Potential recipients ==
{{incomplete list}}
Upon escaping with the ACoNR the player is given the choice of who to give it to, if they desire. Giving it to anyone will reward you with 2000 classic XP/2 oddity XP. Its known recipients include:
* [[Professor Oldfield]]
* [[Captain Grim]]
* [[Aran]]
* [[Azif]]
* [[Eidein]]
* [[Hadrian Tanner]]
* [[Ezra]]
* [[Colonel Cathcart]]
* [[Trenton]]

=== Professor Oldfield ===
If the player chooses to hand the Acorn to Professor Oldfield after reporting their findings at [[Abyssal Station Zero]], he will be delighted instead of devastated that the all the effort was for nothing. He states that the Acorn will be brought to the University of [[Dis]] for study. 
If player insists for a reward, he is willing to pay 2000 charons(up to 6000 with enough mercantile) for it.

=== Captain Grim ===
If the player allied with the Grim Jetters, Cadmus will take the ACoNR off their hands for 1000 charons, or up to 5000 charons with enough mercantile. Turning it in Grim will allow the player to confront Professor Oldfield with the ACoNR and all the evidence they collected exploring the ruins. This will reveal the ACoNR's purpose, and also trigger the Professor being set free to [[Black Sea Expedition Camp]] or [[Camp Hathor]] if the expedition has been destroyed. The player will also be able to learn about Captain Grim's origins, and his true name.

=== Aran ===
If the player decides to leave the [[Black Sea]] with the Acorn or gives it to Captain Grim, they will receive a message from [[Jon the Beautiful]] when they arrive in [[Core City]]. He directs you to a small bar in the residential district, where you meet a man with a distinct red cloak and sword. He states that he's a representative of the [[United Stations]] and knows that you have the device in your possession. If asked, he will explain that the device cannot be opened without a certain quantum frequency, and that it is therefore useless in the South. Primarily however, he bargains for it. With enough mercantile his deal can extend up to 14,000 charons. Alternatively you may ask for his sword, [[Red Dragon]], or give the Acorn away for free.

In the event that the player refuses or has already given it to someone else, however, Aran swears that he won't leave [[South Underrail]] without it. He allows you to leave the bar, though you will encounter him later inside [[Your House]] or a few other lonely or lawless places. Doing so allows you to acquire both the [[Phantom_Dancer|Phantom Dancer]] and [[Red_Dragon|Red Dragon]], while still giving you the option to give the ACoNR to another recipient.

=== Azif ===
If the player goes to the {{spoiler | [[Oculites]]}} they can give the Acorn to Azif. No exceptional rewards are given for this action besides money, 3000 charons, or up to 7000 charons with enough mercantile. But in exchange he can illuminate the player as to the device's purpose, contents and origin.

=== Eidein ===
Though he hasn't heard of it before, if the player describes the device's use to Eidein he states that he'll gladly take it to present to [[Tchort]] on his next trip to [[Nucleus]]. Upon seeing it, he will recognize the symbol and proceed to teach the player about trees. He may or may not believe that there are actual acorns inside the box, and thanks the player for their contribution. 
If player insists for a reward, he is willing to pay 2000 charons(up to 6000 with enough mercantile) for it.

=== Hadrian Tanner ===
If the player brings up the Acorn with Tanner, who happens to be knowledgeable about the device, he'll accept it for the good of [[South Gate Station]]. He may also inform you about the device if asked.

As a reward, the player will receive a large sum of credits, as well as a discount for all purchases at South Gate Station{{verify}}.

=== Ezra ===
If {{spoiler |Tanner departed the SGS}}, [[Ezra]] will accept the device and thoroughly explain its' purpose.

=== Colonel Cathcart ===
The colonel has not heard of the device, but after making a call to determine what the protectorate knows about it, provides you with some minor information along with 1200 dollars for your trouble. This increases up to 3600 dollars if you ask to be paid for your efforts and have enough effective mercantile.

=== Trenton ===
Trenton does not have any knowledge about the Acorn but nonetheless is willing to take it. If the player already has learned about its purpose from someone else, he will be delighted and say that it would be very valuable asset in fight against the Protectorate. If player request payment, Trenton can offer 2000 charons (up to 6000 with enough mercantile) for it.

=== Others ===
* If the player attempts to give the Acorn to [[Gunnar Edstrom]], he will tell the player to currently prioritize assignments he gave you. After you complete [[Research facility (JKK)]] quest, he will tell the player to keep it out of the city as it has the same air as the Faceless' cube device.
* If the player tries to give the Acorn to [[Archibald Knight]], he will say that it is not something he should be bothered with as it has no relation to your assignments. After you complete [[Research facility (Praetorian Security)]] quest, he will no no longer want to speak to you anymore about anything, including Acorn.
* If the player tries to give the Acorn to [[Rupert Simmons]], he will tell the player that he has never heard about this technology and that he is currently busy with other things and to talk with him about it later. After you complete [[Research facility (Coretech)]] quest, he will no no longer want to speak to you anymore about anything, including Acorn.
* [[Dude]] will recognize the device, somewhat explain its purpose, but will refuse to keep it, alluding to [[Aran|cyber tech ninjas]].
** If the ACoNR was left anywhere in his cave home when you exit the area he will throw it out and it can be found in the trash barrels near the entrance.
* [[Faceless Commander]] provides no additional information, but questions the validity of the players statement about the device. He will refuse to take it, considering it a distraction from their goals.
* Player can attempt to give the device to [[Ferryman]], however he neither knows anything about it or is willing to keep it. He says that there was probably very good reason for it to have been hidden and suggests to throw it back to the Black Sea.

{{Plotitem navbox}}
[[Category:Items]]
[[Category:Plot]]

Siphoner Leather

2022-06-09T03:13:09Z

Harperfan7:

{{infobox item
| image = Siphoner Leather.png
| itemquality = normal
| name = Siphoner Leather
| type = Component
| description = It's a slippery slimy piece of siphoner skin. It can be used to craft a suit of leather armor.
| quality = 1 - 60
| skillsreq = :Tailoring 80%
| weight = 4.00
| value = 80 + 7 * quality
| datafile = Components\Leather\SiphonerLeather.item
}}

'''Siphoner Leather''' is a type of raw leather. Loot drop from [[siphoner]]s, up to quality 64. Higher qualities than this can be bought from certain merchants.

It provides low {{mechanical}} and slightly higher {{heat}} and {{acid}} resistance/threshold, as well as a '''+15''' bonus to [[Dodge]] and [[Evasion]] when used in armors.

{{Quality table
| name = Resistance scaling (Leather Armor)
| min_quality = 1
| max_quality = 100
| col_resist1 = {{Mechanical}}
| base_DR1 = 13
| base_DT1 = 2
| quality_DR1 = 0.12
| quality_DT1 = 0.05
| col_resist2 = {{Heat}} and {{Acid}}
| base_DR2 = 15
| base_DT2 = 5
| quality_DR2 = 0.1
| quality_DT2 = 0.05
}}

== Used in ==
{{ComponentGroup|UsesLeather}}
* [[Blueprint: Infused Leather]]

{{Component navbox}}
[[Category:Items]]
[[Category:Components]]
[[Category:Raw leathers]]

Naga Protector

2022-03-13T21:54:04Z

Harperfan7: /* Description */

{{Stub}}
{{Expedition}}
{{Tabbed infobox
| tab1 = Intact
| tab2 = Broken
| level = 30
| damage = Fusion Cannon 150-200 ({{Energy|75-100|number only}}, {{Heat|75-100|number only}}) (360-480 [{{Energy|180-240|number only}}, {{Heat|180-240|number only}}]), Slap {{Mechanical|250-400|number only}} ({{Mechanical|868-1388|number only}})
| range =
| actionpoints =
| movepoints =
| detection =
| resolve =
| fortitude =
|
| strength = 20
| dexterity = 4
| agility = 5
| constitution = 14
| perception = 7
| will = 5
| intelligence = 4
|
| guns = 160 (200)
| melee = 150 (353)
|
| mechanical = 80% / 75
| heat = 95% / 200
| cold = 100%
| electricity = 50% / 50
| acid = 70% / 40
| energy = 80% / 100
| bio = 100%
|
| charfile =
| dialogfile =
| shopfile =
| animfiles =
}}

'''Naga Protector''' is an automaton in [[Underrail: Expedition]] expansion.

== Description ==
Cobra-headed war bots designed specifically to defend NFT facilities from intruders, Naga protectors are the most powerful robots made by NFT and are some of the most dangerous enemies in the game. They are virtually indestructible with high {{mechanical||prefix}}, {{electricity||prefix}}, {{heat||prefix}} and {{energy||prefix}} resistances in addition to extremely high health. For offense, they have powerful melee attacks and can fire a powerful fusion projectile similar to the ones fired by the [[Devastator]]'s Fusion Cannon from their mouths, making them deadly at any range.

Thankfully, Nagas are rare, with only a small handful of them existing in the entire game.

== Fighting Tactics ==
Essentially, some tricks that work on other robots will not work on Naga Protectors. As with other NFT robots, W2c ammunition or any means of bypassing their high damage resistance will be a huge boon. They can also still be [[Short Circuited]] like other robots by using [[EMP Grenade]]s and lightning based attacks. They have an electricity damage threshold of 50, so some of the usual electricity stuns may have difficulty actually affecting them.

Particularly crafty and resourceful characters aligned with [[Professor Oldfield]] and [[Aegis Incorporated]] may be able to reactivate one of these powerhouses to help fend off the [[Sørmirbæren]] and the [[Grim Jetters]].

{{Enemies/Expedition navbox}}
[[Category:Automatons]]

Perception

2022-02-17T18:04:02Z

Harperfan7: /* Base game */

{{Quote
| Perception represents character's ability to discern objects from far away as well as to notice hidden things in their vicinity. It helps the character to use ranged weapons more effectively, as well as detect hidden objects, passages and creatures.
| In-game description
}}

== Details ==
'''Perception''' determines your character's overall awareness and effectiveness with ranged weapons. It also affects your character's chance to detect hidden passages, objects or stealthed creatures and NPCs. It does not increase your vision or visible range. Perception does not directly affect your chance to hit, but rather increases your ranged weapon skills, which in turn increases your chance to hit with ranged weapons. Melee weapon hit rate is unchanged but increased with melee skill (through strength or dexterity). No items require perception to be used or equipped.

High perception score is important for characters who wish to use ranged weapons or find traps, stealthed enemies and secrets.

{{Synergies|
* [[Guns]]
* [[Crossbows]]
|
* [[Detection]]
* Finding secrets (uses perception score instead of detection)
}}

== Related feats ==
See [[:Category:Perception feats]].
* [[Snooping]] increases perception by 3 for the purposes of finding secrets.
* [[Increased Perception]] veteran feat increases it by 2.

== Related items ==

=== Headwear ===
* {{Itemlink|Adaptive Goggles}} (+1 Perception on equip)
* {{Itemlink|Metal Helmet}}s (-1 Perception on equip)
* {{Itemlink|Aegis Sec-trooper Helmet}}{{expedition-inline}} (-1 Perception on equip)
* {{Itemlink|Praetorian Lawgiver}} (-1 Perception on equip)
* {{Itemlink|Gas Mask}} (-2 Perception on equip)

=== Suit ===
* {{Itemlink|Tchortist Noble Robe}} (-1 Perception on equip)
* {{Itemlink|Tchortist Rassophore Armor}} (-1 Perception on equip)
* {{Itemlink|Biohazard Suit}} (-2 Perception on equip)
* {{Itemlink|Fire Proximity Suit}} (-2 Perception on equip)
* {{Itemlink|Robe}} (-2 Perception on equip)
* {{Itemlink|Tchortist Robe}} (-2 Perception on equip)

=== Food ===
* {{Itemlink|All-in}} (temporarily +3 all base abilities)
* {{Itemlink|Mushroom Salad}} (temporary +1 Perception)
* {{Itemlink|Junkyard Surprise}} (temporary random base ability effect, can only decrease Perception)
* {{Itemlink|Clean Deal}} (temporary -1 Perception)
* {{Itemlink|Mushroom Brew}} (temporary -2 Perception)
* {{Itemlink|Kzozel}} {{expedition-inline}} (temporary -2 Perception)
* {{Itemlink|White Dude}} (temporarily -2 Perception)

=== Drugs ===
* {{Itemlink|Third Eye (drug)|Third Eye}}{{expedition-inline}} (temporary +3 Perception for the purpose of finding secrets)
* {{Itemlink|Bioluminous Marsh Honey}}{{expedition-inline}} (temporary +2 Perception)
* {{Itemlink|Supersoldier Drug (medicine)|Supersoldier Drug}} (temporary +2 Perception)
* {{Itemlink|The Juice}} (temporary +1 Perception)

== Perception checks ==
[[File:Tilemarker Perception.png|left]]

Discovering secret areas is based on [[Perception]] score alone, unlike detecting traps and stealthed characters, which is based on [[Detection]]. Discovering some secrets requires prior knowledge instead of Perception score.

In addition to secrets, [[Underrail: Expedition]] expansion added visible in-world Perception checks similar to [[Strength]], [[Dexterity]] and [[Agility]] checks.

=== Base game ===

{{incomplete list}}

{| class="sortable wikitable"
|-
! Location !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| Lower Caves, [[South Gate Outposts]], Area '''South outposts''', inside NW outpost ([[:File:Forlornstations1.png|Forlornstations1.png]])
| Trapdoor
| 6 Perception
| [[:File:ForlornStations4_1.png|connects]] the two south outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''South outposts''', inside NE outpost ([[:File:Forlornstations1.png|Forlornstations1.png]])
| Trapdoor
| 6 Perception
| [[:File:ForlornStations4_1.png|connects]] the two south outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''East outpost''', inside the outpost ([[:File:ForlornStations4.png|ForlornStations4.png]])
| Trapdoor
| 7 Perception
| [[:File:ForlornStations1_1.png|connects]] east and northwest outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''East outpost''', northeast tunnels ([[:File:ForlornStations4.png|ForlornStations4.png]])
| Trapdoor
| 8 Perception
| [[:File:ForlornStations1_1.png|connects]] east and northwest outposts
|-
| [[Under-passages]] area 1, near SGS ([[:File:lup-a1.png|lup-a1.png]])
| Door
| 7 Perception
| secret room along east wall, [[Strange Comm Device]] oddity
|-
| Lower Underrail, [[GMS compound level 1]] ([[:File:GammaCompound1.png|GammaCompound1.png]])
| Safe
| 7 Perception
| secret safe in room near southwest corner
|-
| Lower Underrail, [[GMS compound level 2]] ([[:File:GammaCompound2.png|GammaCompound2.png]])
| Secret passage
| 7 Perception
| secret room along east wall, [[Old Data Medium]] oddity
|-
| Lower Underrail, [[GMS compound level 3]] ([[:File:GammaCompound3.png|GammaCompound3.png]])
| First aid box
| ? Perception
| SW room, hidden under couch, medicine including an advanced health hypo
|-
| [[Lower Caves]], east from [[GMS compound level 3]] ([[:File:cv12.png|cv12.png]])
| Secret crawlspace
| 8 Perception
| leads to the back entrance of the raider [[:File:Cv14.png|base]]
|-
| [[Lower Caves]], raider [[:File:Cv14.png|base]]
| Adrenaline shot
| ? Perception
| under Page's bed
|-
| [[Lower Caves]] between Mushroom Cove and Junkyard ([[:File:jyt1.png|jyt1.png]])
| Underwater rock bridge
| 8 Perception
| leads to a small island
|-
| Lower Caves, [[Siphoner Pools]], northeast ([[:File:jyt3.png|jyt3.png]])
| Underwater rock bridge
| 8 Perception
| leads to the northeast corner of the cave
|-
| Lower Caves, [[Water Treatment Facility]]
| Plasma cell
| ? Perception
| under a table in the power room
|-
| Lower Caves, [[Water Treatment Facility]]
| Shotgun shells
| ? Perception
| on top of a locker in the SE room on the upper level
|-
| Lower Caves, [[Water Treatment Facility]]
| First-aid kit
| ? Perception
| in the SE room on the lower level, has antidotes
|-
| Lower Caves, [[Water Treatment Facility]]
| Deathstalker corpse with oddity
| ? Perception
| in a secret compartment in the ventilation system
|-
| Lower Caves, [[Water Treatment Facility]]
| Hidden vent shaft
| ? Perception
| along north wall on the lower level, leads to secluded room with loot
|-
| [[Silent Isle]], southeast ([[:File:si1.png|si1.png]])
| Underwater rock bridge
| 7 Perception
| leads to a small island with a corpse
|-
| Junkyard, Security control room of [[Depot A]] east area ([[:File:ojy2.png|ojy2.png]])
| Secret door
| 10 perception
| shortcut bypassing the turrets
|-
| [[Lower Underrail]] area 6, Lunatic camp ([[:File:lu-a6.png|lu-a6.png]])
| Hidden stash
| 8 Perception
| secret footlocker near rock pile
|-
| [[Upper Caves]], south of Milton's camp ([[:File:lux-a10.png|lux-a10.png]])
| Underwater rock bridge
| 7 Perception
| shortcut between the north and south bank of the river
|-
| [[Upper Caves]], ironhead camp, north of the Bunker ([[:File:Lux-b16.png|Lux-b16.png]])
| Hidden stash
| ? Perception
| NW corner of map, through the backside of the camp, a jumping bean and tabi boots
|-
| [[Upper Caves]], Synesthete/Formedicator camp, under the Oculus
| Hidden stash
| ? Perception
| in the rock next to the Synesthete, 293 charons
|-
| [[Upper Caves]], misty river north of Hecate caves entrance
| Hidden box
| ? Perception
| contains a luxury item
|-
| [[Upper Caves]], Lost Vault entrance ([[:File:Lux-b9.png|Lux-b9.png]])
| Hidden ventilation shaft
| ? Perception
| leads into the shack behind the trader
|-
| [[Upper Caves]], Lost Vault interior
| Hidden first-aid box
| ? Perception
| 2 antidotes and a health hypo
|-
| [[Upper Caves]], Lost Vault interior
| Hidden footlocker
| ? Perception
| in room along north wall, electronic component(s)
|-
| [[Upper Caves]], Lost Vault interior
| Hidden bag
| ? Perception
| in room along west wall, advanced repair kits & a lighter
|-
| [[Lower Caves]], south of [[Crossroad Caves]] ([[:File:cv2.png|cv2.png]])
| Trapdoor
| 8 Perception
| [[:File:Cv2 1.png|connects]] southwest and southeast corner, locked box with random psionic mentor
|-
| [[Lower Caves]], south of [[Crossroad Caves]] ([[:File:cv2.png|cv2.png]])
| Underwater rock bridge
| 7 Perception
| shortcut bypassing siphoners
|-
| Lower Caves, south of [[Camp Hathor]] ([[:File:cv19.png|cv19.png]])
| Underwater rock bridge
| 7 Perception
| shortcut bypassing rathound nest
|-
| Lower Caves, [[Rathound King Lair]] ([[:File:rkl2.png|rkl2.png]])
| Door
| Quest trigger
| shortcut leading outside if you offer to [[Kidnap Sarine|kidnap Sarine]] or [[Kill the Rathound King|negotiate a truce]] with Camp Hathor
|-
| Lower Caves, [[Rathound King Lair]], outside ([[:File:cv21.png|cv21.png]])
| Door
| Quest trigger
| shortcut leading to the lair if you offer to [[Kidnap Sarine|kidnap Sarine]] or [[Kill the Rathound King|negotiate a truce]] with Camp Hathor
|-
| Lower Underrail, [[Abandoned Warehouse]] ([[:File:aw1-1.png|aw1-1.png]])
| Secret crawlspace
| 7 Perception
| secret ventilation shaft section with a footlocker and a rathound
|-
| [[Rail Crossing]], behind bar ([[:File:rc1.png|rc1.png]])
| Secret door
| 7 Perception
| leads to [[Deacon]]'s shop
|-
| Rail Crossing, [[Buzzer's Shop]]'s ventilation shafts ([[:File:rc_shop 3.png|rc_shop 3.png]])
| Hidden Ventilation Shaft
| 7 Perception
| secret ventilation shaft section with [[Hardware Bug]]
|-
| Lower Underrail, [[Dude's vision|The warehouse from Dude's vision]] ([[:File:lu-b4.png|lu-b4.png]])
| Secret crawlspace
| Quest trigger
| leads to the lower level of the warehouse during Dude's quest
|-
| [[Free Drones Base]], east room
| Trapdoor
| 11 Perception
| can't be opened; handle breaks
|-
| [[Upper Caves]], north from the Hanging Rat bar ([[:File:lux-c2.png|lux-c2.png]])
| Hidden stash
| 11 Perception
| secret stash inside rock pillar (not visible on the linked map)
|-
| Foundry, Evelyn's home ([[:File:fo3.png|fo3.png]])
| Trapdoor
| 10 Perception
| [[:File:Fo3-tunnel.png|connects]] Evelyn's house and bunker
|-
| Foundry, Evelyn's home ([[:File:fo3.png|fo3.png]])
| Secret crawlspace
| Quest trigger
| leads to Evelyn's [[:File:Fo-bunker.png|bunker]] if a male player character [[Foundry murders|has a drink]] with her
|-
| [[Lower Underrail]], cave west of [[Foundry]] ([[:File:lu-b22x.png|lu-b22x.png]])
| Hidden stash
| 10 Perception
| secret stash inside rock pillar
|-
| Core City, SW middle level ([[:File:Cc17.png|Cc17.png]])
| Ladder
| 14 Perception
| leads to utility section electric coil area
|-
| Core City, utility section ([[:File:Cc_utility.png|Cc_utility.png]])
| Squeeze though gap in pipes
| ? Perception
| leads to Phreak's hideout
|-
| Core City, utility section steam area
| Junk pile
| ? Perception
| mechanical components (probably randomized), NW corridor
|-
| Core City, utility section steam area
| Plasma cell
| ? Perception
| hidden plasma cell, through the door east of the steam console, along the south wall
|-
| Core City, utility section electric coil area
| Phreak's laptop
| ? Perception
| laptop hidden in trash pile in his hideout, available after his disappearance
|-
| Core City, utility section electric coil area
| Bag
| ? Perception
| knife (probably randomized), SE room on 2nd floor
|-
| Core City, [[Drop Zone]] ([[:File:cc15.png|cc15.png]])
| Secret door
| Quest trigger or 6 Perception
| leads to Bogdan's [[:File:Cc15x.png|hideout]], can be found with perception or by learning about it from [[Kupusije]] during [[Find Bogdan]], or with perception after starting [[Sewers generator]]/[[Retrieve ICPD]]
|-
| Core City, inside one of [[Drop Zone]] buildings ([[:File:cc5_1.png|cc5_1.png]])
| Trapdoor
| 8 Perception
| leads to the basement
|-
| Core City, north [[Core City Sewers]] ([[:File:cc_s2.png|cc_s2.png]])
| Door
| 8 Perception
| leads to a secret room on the west side
|-
| Core City, northwest [[Core City Sewers]] ([[:File:cc_s6 2.png|cc_s6 2.png]])
| Switch
| Quest trigger
| opens door to Acid Hunters' hideout during the [[Look for Cornell]] quest
|-
| [[Upper Underrail]], east of [[Notus Living Block]] ([[:File:up3x.png|up3x.png]])
| Trapdoor
| 7 Perception
| [[:File:Up3x_1.png|connects]] trapdoor and a Lunatic base
|-
| [[Upper Underrail]], inside [[Panacea Lab]] ([[:File:plb.png|plb.png]])
| Switch
| 8 Perception
| opens door to the room in the northeast corner
|-
| [[Upper Underrail]], northeast corner ([[:File:Up7.png|Up7.png]])
| Ventilation Shaft
| ? Perception
| connects inside of structure to outside, north of the barrel fire
|-
| [[Upper Underrail]], utility tower, first room past metal gate
| Ventilation Shaft
| ? Perception
| ladder leading up, skips some floors
|-
| [[Institute of Tchort]], armory, behind the locked fence ([[:File:Tch-mil.png|Tch-mil.png]])
| Box of ammo
| ? Perception
| x11 12.7mm WC
|-
| [[Institute of Tchort]], utility section 2, south room ([[:File:Tch-util2.png|Tch-util2.png]])
| Box
| ? Perception
| one aegis, three gizzard enzymes
|-
| [[Institute of Tchort]], utility section 3, northwest corner ([[:File:tch-util3.png|tch-util3.png]])
| Morphine shot on file cabinet
| ? Perception
| one morphine shot
|-
| [[Institute of Tchort]], utility section 3, northeast corner ([[:File:tch-util3.png|tch-util3.png]])
| Ventilation Shaft
| 8 Perception
| [[:File:Tch-vent.png|connects]] west wing and utility section
|-
| [[Institute of Tchort]], west wing, in coil spider room ([[:File:tch-ww2.png|tch-ww2.png]])
| Ventilation Shaft
| 7 Perception
| [[:File:Tch-vent.png|connects]] west wing and utility section
|-
| Institute of Tchort, [[Harpocrates Station]], north room ([[:File:tch_met.png|tch_met.png]])
| Secret crawlspace
| Quest trigger
| leads to the ventilation system during [[Track down Rassophore Nevil]]
|-
| Institute of Tchort, [[Upper Underrail Ventilation System]] ([[:File:tch_mv1.png|tch_mv1.png]])
| Secret crawlspace
| 8 Perception
| secret ventilation shaft section with a box
|-
| Institute of Tchort, [[Upper Underrail Ventilation System]], southwest room ([[:File:tch_mv1_2.png|tch_mv1_2.png]])
| Secret trapdoor
| 10 Perception
| leads to hidden [[:File:Tch_mv1_3.png|basement]]
|-
| [[Deep Caverns]], lake, northeast bank ([[:File:dc-lk.png|dc-lk.png]])
| Underwater rock bridge
| 7 Perception
| leads to a small island with hackable box
|-
| [[Deep Caverns]], lake, southwest islet ([[:File:dc-lk.png|dc-lk.png]])
| Sniper rifle
| 10 Perception
| reveals [[Black Arrow]] sniper rifle
|-
| Deep Caverns, [[Hollow Earth]] ([[:File:dc-la2.png|dc-la2.png]])
| Secret crawlspace
| 8 Perception
| secret entrance to the small building on the east
|-
| Deep Caverns, checkpoint between Caerus and warehouses ([[:File:dc-cp1.png|dc-cp1.png]])
| Underwater rock bridge
| 8 Perception
| leads to the east bank of the lake
|-
| Deep Caverns, [[Warehouse Block 2]], south toxic storage ([[:File:dc-wh3.png|dc-wh3.png]])
| Trapdoor
| 8 Perception
| leads to lower [[:File:Dc-wh3_1.png|level]], [[Psionic Mentor: Electrokinetic Imprint|Electrokinetic Imprint]] mentor
|-
| Deep Caverns, [[Caerus Residential]], northwest building, second floor ([[:File:dc-res2 2.png|dc-res2 2.png]])
| Ventilation Shaft
| 10 Perception
| leads to a [[:File:Dc-sc.png|cavern]] with [[Gunter Vasilica]], [[Psionic Mentor: Pseudo-spatial Projection|Pseudo-spatial Projection]] mentor, and [[Regenerative Mixture]]
|-
| Deep Caverns, [[Caerus Residential]], west apartment ([[:File:dc-res3.png|dc-res3.png]])
| Safe
| 6 Perception
| secret (empty) safe
|-
| Deep Caverns, [[Arke Power Station]], utility section toxic storage ([[:File:dc-pp_ut.png|dc-pp_ut.png]])
| Trapdoor
| 11 Perception
| [[:File:Dc-pp_ut_1.png|connects]] toxic storage and storage room, random psionic mentor
|-
| Deep Caverns, [[Arke Power Station]], utility section storage room ([[:File:dc-pp_ut.png|dc-pp_ut.png]])
| Trapdoor
| 10 Perception
| [[:File:Dc-pp_ut_1.png|connects]] toxic storage and storage room, random psionic mentor
|-
| Deep Caverns, [[Mushroom Forest|Deep Mushroom Forest]] ([[:File:dc-fs4.png|dc-fs4.png]])
| Secret tunnel
| 9 Perception
| leads to the northwest corner and a skeleton
|}

=== Expedition ===
{{incomplete list}}

{| class="sortable wikitable"
|-
! Location, Underrail !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| [[Abandoned Waterway Facility]], east zone || Hidden stash in rock pillar || ? Perception || exceptionally high-quality mutated-dog leather
|-
| [[The Rig]], room #2 || [[Note (The Rig)]] || 5 Perception || under the bed
|-
| [[Chancer's Bay]], NE map || Hole through wall of shack || 10 Perception || biohazard boots, mutants
|-
| [[Isaac's River]], northernmost map || Hidden stash || 10 Perception || stash in north wall of cave
|-
| [[Core City Docks]], empty room next to Ray's shop || Vent in north wall || ? || leads into Ray's shop, dying burglar
|-
| [[Dude's House - Core City]] || Cracked floor panel/wall safe || ? || key to wall safe/the safe itself
|-
| [[Dude's House - Caves]] || Footlocker under bed || 9 Perception || psionic mentor
|-
| [[Grey Army Base]], two rooms east of the rift || Secret trapdoor || 8 Perception || electronic components
|-
| [[Grey Army Base]], 2nd floor || Wall safe || 9 Perception || secret safe in north wall of northwest room
|-
| [[Grey Army Base]], 2nd floor || Secret crawlspace || 9 Perception || Connects northern and southern parts of the ventilation system
|}

{{incomplete list}}

{| class="sortable wikitable"
|-
! Location, Black Sea !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| [[Black Sea]] ([[E4]]), north side of island || Entrance to cave || 11 Perception || entrance to pirate prison sewer, boss hermit crab
|-
| [[Siphoner Pools (Black Sea)]] || Underwater rock bridge || 7 Perception || leads to a lingula plant and a random treasure "crevice"
|-
| [[Siphoner Pools (Black Sea)]], west chamber || Buried box || 11 Perception || SGS credits, Charons, UN dollars
|-
| [[Black Sea]] ([[C8]]), hopper island cave, north wall, west side || Hidden stash || 9 Perception || secret stash in cave wall, quiver belt and special bolts
|-
| [[Black Sea]] ([[A10]]), Yngwar's cave island, hidden walkway in water on east side|| Hidden stash || ? Perception || secret stash in cave wall, coagulation shot(s) and rusting acid chemical ammo
|-
| [[Mutie Refuge]], crane room || Hidden vent shaft || 7 Perception || secret vent shaft through wall into crane room
|-
| [[West Storage Depot]], lvl 3 by the elevator || Hidden vent shaft || 8 Perception || secret vent shaft to blocked room
|-
| [[Crimson Meadow Horticulture Center]] lower floor, west section, north side || Hidden vent shaft || 11 Perception || secret vent shaft through wall
|-
| [[Black Sea]] ([[I1]]), outside the Health Center, SE corner || Hidden hole through wall || 10 Perception || secret passage to hidden room
|-
| [[Black Sea]] ([[I2]]), tower north of Health Center, 2nd floor || Hidden corpse || 9 Perception || corpse with loot (can be looted without detection)
|-
| [[Nexus of Technology]], level 1, SE room || Hidden wall safe || 9 Perception || loot
|-
| [[Port Crag]], east building || Hidden pipe tunnel || 9 Perception || Crawl through to west building, 2nd floor (agility 8; it is from the other direction)
|-
| [[Fetid Marsh]], east side of [[K5]]/west side of [[L5]] || Hidden map exit(s) || 7 Perception || secret camp with [[Signed Arena Ticket]] Oddity and [[Slimy Tablet Computer]]
|-
| [[Fetid Marsh]], SW corner of [[K4]] || Hidden pool jumps || 12 Perception || secret platforms for easier jumping across leper pool
|-
| Map M7 (two maps east of the Nexus), NW corner || Hidden passages || 9 Perception || secret passages to/from hidden room, shortcut past creepers
|}

{{Base abilities navbox}}
[[Category: Base Abilities]]

Thing in a Jar

2022-02-16T06:05:38Z

Harperfan7:

{{infobox item
| itemquality = oddity
| image = oddity117.png
| name = Thing in a Jar
| type = Oddity
| description = Some things are best left unexplained.
| capabilities= Pick up: Study this item to gain 3 points of experience. You can study this type of item up to 1 times.
}}

The '''Thing in a Jar''' oddity can be found in [[Deep Caverns]] inside a toxic barrel inside the toxic waste facility west of Warehouse Block 2, and inside an unmarked pipe in Hollow Earth Labs 1 just across from the mutagen scanner.

{{Oddities navbox}}
[[Category:Items]]
[[Category:Oddities]]

Perception

2022-02-14T08:54:16Z

Harperfan7: /* Base game */

{{Quote
| Perception represents character's ability to discern objects from far away as well as to notice hidden things in their vicinity. It helps the character to use ranged weapons more effectively, as well as detect hidden objects, passages and creatures.
| In-game description
}}

== Details ==
'''Perception''' determines your character's overall awareness and effectiveness with ranged weapons. It also affects your character's chance to detect hidden passages, objects or stealthed creatures and NPCs. It does not increase your vision or visible range. Perception does not directly affect your chance to hit, but rather increases your ranged weapon skills, which in turn increases your chance to hit with ranged weapons. Melee weapon hit rate is unchanged but increased with melee skill (through strength or dexterity). No items require perception to be used or equipped.

High perception score is important for characters who wish to use ranged weapons or find traps, stealthed enemies and secrets.

{{Synergies|
* [[Guns]]
* [[Crossbows]]
|
* [[Detection]]
* Finding secrets (uses perception score instead of detection)
}}

== Related feats ==
See [[:Category:Perception feats]].
* [[Snooping]] increases perception by 3 for the purposes of finding secrets.
* [[Increased Perception]] veteran feat increases it by 2.

== Related items ==

=== Headwear ===
* {{Itemlink|Adaptive Goggles}} (+1 Perception on equip)
* {{Itemlink|Metal Helmet}}s (-1 Perception on equip)
* {{Itemlink|Aegis Sec-trooper Helmet}}{{expedition-inline}} (-1 Perception on equip)
* {{Itemlink|Praetorian Lawgiver}} (-1 Perception on equip)
* {{Itemlink|Gas Mask}} (-2 Perception on equip)

=== Suit ===
* {{Itemlink|Tchortist Noble Robe}} (-1 Perception on equip)
* {{Itemlink|Tchortist Rassophore Armor}} (-1 Perception on equip)
* {{Itemlink|Biohazard Suit}} (-2 Perception on equip)
* {{Itemlink|Fire Proximity Suit}} (-2 Perception on equip)
* {{Itemlink|Robe}} (-2 Perception on equip)
* {{Itemlink|Tchortist Robe}} (-2 Perception on equip)

=== Food ===
* {{Itemlink|All-in}} (temporarily +3 all base abilities)
* {{Itemlink|Mushroom Salad}} (temporary +1 Perception)
* {{Itemlink|Junkyard Surprise}} (temporary random base ability effect, can only decrease Perception)
* {{Itemlink|Clean Deal}} (temporary -1 Perception)
* {{Itemlink|Mushroom Brew}} (temporary -2 Perception)
* {{Itemlink|Kzozel}} {{expedition-inline}} (temporary -2 Perception)
* {{Itemlink|White Dude}} (temporarily -2 Perception)

=== Drugs ===
* {{Itemlink|Third Eye (drug)|Third Eye}}{{expedition-inline}} (temporary +3 Perception for the purpose of finding secrets)
* {{Itemlink|Bioluminous Marsh Honey}}{{expedition-inline}} (temporary +2 Perception)
* {{Itemlink|Supersoldier Drug (medicine)|Supersoldier Drug}} (temporary +2 Perception)
* {{Itemlink|The Juice}} (temporary +1 Perception)

== Perception checks ==
[[File:Tilemarker Perception.png|left]]

Discovering secret areas is based on [[Perception]] score alone, unlike detecting traps and stealthed characters, which is based on [[Detection]]. Discovering some secrets requires prior knowledge instead of Perception score.

In addition to secrets, [[Underrail: Expedition]] expansion added visible in-world Perception checks similar to [[Strength]], [[Dexterity]] and [[Agility]] checks.

=== Base game ===

{{incomplete list}}

{| class="sortable wikitable"
|-
! Location !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| Lower Caves, [[South Gate Outposts]], Area '''South outposts''', inside NW outpost ([[:File:Forlornstations1.png|Forlornstations1.png]])
| Trapdoor
| 6 Perception
| [[:File:ForlornStations4_1.png|connects]] the two south outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''South outposts''', inside NE outpost ([[:File:Forlornstations1.png|Forlornstations1.png]])
| Trapdoor
| 6 Perception
| [[:File:ForlornStations4_1.png|connects]] the two south outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''East outpost''', inside the outpost ([[:File:ForlornStations4.png|ForlornStations4.png]])
| Trapdoor
| 7 Perception
| [[:File:ForlornStations1_1.png|connects]] east and northwest outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''East outpost''', northeast tunnels ([[:File:ForlornStations4.png|ForlornStations4.png]])
| Trapdoor
| 8 Perception
| [[:File:ForlornStations1_1.png|connects]] east and northwest outposts
|-
| [[Under-passages]] area 1, near SGS ([[:File:lup-a1.png|lup-a1.png]])
| Door
| 7 Perception
| secret room along east wall, [[Strange Comm Device]] oddity
|-
| Lower Underrail, [[GMS compound level 1]] ([[:File:GammaCompound1.png|GammaCompound1.png]])
| Safe
| 7 Perception
| secret safe in room near southwest corner
|-
| Lower Underrail, [[GMS compound level 2]] ([[:File:GammaCompound2.png|GammaCompound2.png]])
| Secret passage
| 7 Perception
| secret room along east wall, [[Old Data Medium]] oddity
|-
| Lower Underrail, [[GMS compound level 3]] ([[:File:GammaCompound3.png|GammaCompound3.png]])
| First aid box
| ? Perception
| SW room, hidden under couch, medicine including an advanced health hypo
|-
| [[Lower Caves]], east from [[GMS compound level 3]] ([[:File:cv12.png|cv12.png]])
| Secret crawlspace
| 8 Perception
| leads to the back entrance of the raider [[:File:Cv14.png|base]]
|-
| [[Lower Caves]], raider [[:File:Cv14.png|base]]
| Adrenaline shot
| ? Perception
| under Page's bed
|-
| [[Lower Caves]] between Mushroom Cove and Junkyard ([[:File:jyt1.png|jyt1.png]])
| Underwater rock bridge
| 8 Perception
| leads to a small island
|-
| Lower Caves, [[Siphoner Pools]], northeast ([[:File:jyt3.png|jyt3.png]])
| Underwater rock bridge
| 8 Perception
| leads to the northeast corner of the cave
|-
| Lower Caves, [[Water Treatment Facility]]
| Plasma cell
| ? Perception
| under a table in the power room
|-
| Lower Caves, [[Water Treatment Facility]]
| Shotgun shells
| ? Perception
| on top of a locker in the SE room on the upper level
|-
| Lower Caves, [[Water Treatment Facility]]
| First-aid kit
| ? Perception
| in the SE room on the lower level, has antidotes
|-
| Lower Caves, [[Water Treatment Facility]]
| Deathstalker corpse with oddity
| ? Perception
| in a secret compartment in the ventilation system
|-
| Lower Caves, [[Water Treatment Facility]]
| Hidden vent shaft
| ? Perception
| along north wall on the lower level, leads to secluded room with loot
|-
| [[Silent Isle]], southeast ([[:File:si1.png|si1.png]])
| Underwater rock bridge
| 7 Perception
| leads to a small island with a corpse
|-
| Junkyard, Security control room of [[Depot A]] east area ([[:File:ojy2.png|ojy2.png]])
| Secret door
| 10 perception
| shortcut bypassing the turrets
|-
| [[Lower Underrail]] area 6, Lunatic camp ([[:File:lu-a6.png|lu-a6.png]])
| Hidden stash
| 8 Perception
| secret footlocker near rock pile
|-
| [[Upper Caves]], south of Milton's camp ([[:File:lux-a10.png|lux-a10.png]])
| Underwater rock bridge
| 7 Perception
| shortcut between the north and south bank of the river
|-
| [[Upper Caves]], ironhead camp, north of the Bunker ([[:File:Lux-b16.png|Lux-b16.png]])
| Hidden stash
| ? Perception
| NW corner of map, through the backside of the camp, a jumping bean and tabi boots
|-
| [[Upper Caves]], Synesthete/Formedicator camp, under the Oculus
| Hidden stash
| ? Perception
| in the rock next to the Synesthete, 293 charons
|-
| [[Upper Caves]], misty river north of Hecate caves entrance
| Hidden box
| ? Perception
| contains a luxury item
|-
| [[Upper Caves]], Lost Vault entrance ([[:File:Lux-b9.png|Lux-b9.png]])
| Hidden ventilation shaft
| ? Perception
| leads into the shack behind the trader
|-
| [[Upper Caves]], Lost Vault interior
| Hidden first-aid box
| ? Perception
| 2 antidotes and a health hypo
|-
| [[Upper Caves]], Lost Vault interior
| Hidden footlocker
| ? Perception
| in room along north wall, electronic component(s)
|-
| [[Upper Caves]], Lost Vault interior
| Hidden bag
| ? Perception
| in room along west wall, advanced repair kits & a lighter
|-
| [[Lower Caves]], south of [[Crossroad Caves]] ([[:File:cv2.png|cv2.png]])
| Trapdoor
| 8 Perception
| [[:File:Cv2 1.png|connects]] southwest and southeast corner, locked box with random psionic mentor
|-
| [[Lower Caves]], south of [[Crossroad Caves]] ([[:File:cv2.png|cv2.png]])
| Underwater rock bridge
| 7 Perception
| shortcut bypassing siphoners
|-
| Lower Caves, south of [[Camp Hathor]] ([[:File:cv19.png|cv19.png]])
| Underwater rock bridge
| 7 Perception
| shortcut bypassing rathound nest
|-
| Lower Caves, [[Rathound King Lair]] ([[:File:rkl2.png|rkl2.png]])
| Door
| Quest trigger
| shortcut leading outside if you offer to [[Kidnap Sarine|kidnap Sarine]] or [[Kill the Rathound King|negotiate a truce]] with Camp Hathor
|-
| Lower Caves, [[Rathound King Lair]], outside ([[:File:cv21.png|cv21.png]])
| Door
| Quest trigger
| shortcut leading to the lair if you offer to [[Kidnap Sarine|kidnap Sarine]] or [[Kill the Rathound King|negotiate a truce]] with Camp Hathor
|-
| Lower Underrail, [[Abandoned Warehouse]] ([[:File:aw1-1.png|aw1-1.png]])
| Secret crawlspace
| 7 Perception
| secret ventilation shaft section with a footlocker and a rathound
|-
| [[Rail Crossing]], behind bar ([[:File:rc1.png|rc1.png]])
| Secret door
| 7 Perception
| leads to [[Deacon]]'s shop
|-
| Rail Crossing, [[Buzzer's Shop]]'s ventilation shafts ([[:File:rc_shop 3.png|rc_shop 3.png]])
| Hidden Ventilation Shaft
| 7 Perception
| secret ventilation shaft section with [[Hardware Bug]]
|-
| Lower Underrail, [[Dude's vision|The warehouse from Dude's vision]] ([[:File:lu-b4.png|lu-b4.png]])
| Secret crawlspace
| Quest trigger
| leads to the lower level of the warehouse during Dude's quest
|-
| [[Free Drones Base]], east room
| Trapdoor
| 11 Perception
| can't be opened; handle breaks
|-
| [[Upper Caves]], north from the Hanging Rat bar ([[:File:lux-c2.png|lux-c2.png]])
| Hidden stash
| 11 Perception
| secret stash inside rock pillar (not visible on the linked map)
|-
| Foundry, Evelyn's home ([[:File:fo3.png|fo3.png]])
| Trapdoor
| 10 Perception
| [[:File:Fo3-tunnel.png|connects]] Evelyn's house and bunker
|-
| Foundry, Evelyn's home ([[:File:fo3.png|fo3.png]])
| Secret crawlspace
| Quest trigger
| leads to Evelyn's [[:File:Fo-bunker.png|bunker]] if a male player character [[Foundry murders|has a drink]] with her
|-
| [[Lower Underrail]], cave west of [[Foundry]] ([[:File:lu-b22x.png|lu-b22x.png]])
| Hidden stash
| 10 Perception
| secret stash inside rock pillar
|-
| Core City, SW middle level ([[:File:Cc17.png|Cc17.png]])
| Ladder
| 14 Perception
| leads to utility section electric coil area
|-
| Core City, utility section ([[:File:Cc_utility.png|Cc_utility.png]])
| Squeeze though gap in pipes
| ? Perception
| leads to Phreak's hideout
|-
| Core City, utility section steam area
| Junk pile
| ? Perception
| mechanical components (probably randomized), NW corridor
|-
| Core City, utility section steam area
| Plasma cell
| ? Perception
| hidden plasma cell, through the door east of the steam console, along the south wall
|-
| Core City, utility section electric coil area
| Bag
| ? Perception
| knife (probably randomized), SE room on 2nd floor
|-
| Core City, [[Drop Zone]] ([[:File:cc15.png|cc15.png]])
| Secret door
| Quest trigger or 6 Perception
| leads to Bogdan's [[:File:Cc15x.png|hideout]], can be found with perception or by learning about it from [[Kupusije]] during [[Find Bogdan]], or with perception after starting [[Sewers generator]]/[[Retrieve ICPD]]
|-
| Core City, inside one of [[Drop Zone]] buildings ([[:File:cc5_1.png|cc5_1.png]])
| Trapdoor
| 8 Perception
| leads to the basement
|-
| Core City, north [[Core City Sewers]] ([[:File:cc_s2.png|cc_s2.png]])
| Door
| 8 Perception
| leads to a secret room on the west side
|-
| Core City, northwest [[Core City Sewers]] ([[:File:cc_s6 2.png|cc_s6 2.png]])
| Switch
| Quest trigger
| opens door to Acid Hunters' hideout during the [[Look for Cornell]] quest
|-
| [[Upper Underrail]], east of [[Notus Living Block]] ([[:File:up3x.png|up3x.png]])
| Trapdoor
| 7 Perception
| [[:File:Up3x_1.png|connects]] trapdoor and a Lunatic base
|-
| [[Upper Underrail]], inside [[Panacea Lab]] ([[:File:plb.png|plb.png]])
| Switch
| 8 Perception
| opens door to the room in the northeast corner
|-
| [[Upper Underrail]], northeast corner ([[:File:Up7.png|Up7.png]])
| Ventilation Shaft
| ? Perception
| connects inside of structure to outside, north of the barrel fire
|-
| [[Upper Underrail]], utility tower, first room past metal gate
| Ventilation Shaft
| ? Perception
| ladder leading up, skips some floors
|-
| [[Institute of Tchort]], armory, behind the locked fence ([[:File:Tch-mil.png|Tch-mil.png]])
| Box of ammo
| ? Perception
| x11 12.7mm WC
|-
| [[Institute of Tchort]], utility section 2, south room ([[:File:Tch-util2.png|Tch-util2.png]])
| Box
| ? Perception
| one aegis, three gizzard enzymes
|-
| [[Institute of Tchort]], utility section 3, northwest corner ([[:File:tch-util3.png|tch-util3.png]])
| Morphine shot on file cabinet
| ? Perception
| one morphine shot
|-
| [[Institute of Tchort]], utility section 3, northeast corner ([[:File:tch-util3.png|tch-util3.png]])
| Ventilation Shaft
| 8 Perception
| [[:File:Tch-vent.png|connects]] west wing and utility section
|-
| [[Institute of Tchort]], west wing, in coil spider room ([[:File:tch-ww2.png|tch-ww2.png]])
| Ventilation Shaft
| 7 Perception
| [[:File:Tch-vent.png|connects]] west wing and utility section
|-
| Institute of Tchort, [[Harpocrates Station]], north room ([[:File:tch_met.png|tch_met.png]])
| Secret crawlspace
| Quest trigger
| leads to the ventilation system during [[Track down Rassophore Nevil]]
|-
| Institute of Tchort, [[Upper Underrail Ventilation System]] ([[:File:tch_mv1.png|tch_mv1.png]])
| Secret crawlspace
| 8 Perception
| secret ventilation shaft section with a box
|-
| Institute of Tchort, [[Upper Underrail Ventilation System]], southwest room ([[:File:tch_mv1_2.png|tch_mv1_2.png]])
| Secret trapdoor
| 10 Perception
| leads to hidden [[:File:Tch_mv1_3.png|basement]]
|-
| [[Deep Caverns]], lake, northeast bank ([[:File:dc-lk.png|dc-lk.png]])
| Underwater rock bridge
| 7 Perception
| leads to a small island with hackable box
|-
| [[Deep Caverns]], lake, southwest islet ([[:File:dc-lk.png|dc-lk.png]])
| Sniper rifle
| 10 Perception
| reveals [[Black Arrow]] sniper rifle
|-
| Deep Caverns, [[Hollow Earth]] ([[:File:dc-la2.png|dc-la2.png]])
| Secret crawlspace
| 8 Perception
| secret entrance to the small building on the east
|-
| Deep Caverns, checkpoint between Caerus and warehouses ([[:File:dc-cp1.png|dc-cp1.png]])
| Underwater rock bridge
| 8 Perception
| leads to the east bank of the lake
|-
| Deep Caverns, [[Warehouse Block 2]], south toxic storage ([[:File:dc-wh3.png|dc-wh3.png]])
| Trapdoor
| 8 Perception
| leads to lower [[:File:Dc-wh3_1.png|level]], [[Psionic Mentor: Electrokinetic Imprint|Electrokinetic Imprint]] mentor
|-
| Deep Caverns, [[Caerus Residential]], northwest building, second floor ([[:File:dc-res2 2.png|dc-res2 2.png]])
| Ventilation Shaft
| 10 Perception
| leads to a [[:File:Dc-sc.png|cavern]] with [[Gunter Vasilica]], [[Psionic Mentor: Pseudo-spatial Projection|Pseudo-spatial Projection]] mentor, and [[Regenerative Mixture]]
|-
| Deep Caverns, [[Caerus Residential]], west apartment ([[:File:dc-res3.png|dc-res3.png]])
| Safe
| 6 Perception
| secret (empty) safe
|-
| Deep Caverns, [[Arke Power Station]], utility section toxic storage ([[:File:dc-pp_ut.png|dc-pp_ut.png]])
| Trapdoor
| 11 Perception
| [[:File:Dc-pp_ut_1.png|connects]] toxic storage and storage room, random psionic mentor
|-
| Deep Caverns, [[Arke Power Station]], utility section storage room ([[:File:dc-pp_ut.png|dc-pp_ut.png]])
| Trapdoor
| 10 Perception
| [[:File:Dc-pp_ut_1.png|connects]] toxic storage and storage room, random psionic mentor
|-
| Deep Caverns, [[Mushroom Forest|Deep Mushroom Forest]] ([[:File:dc-fs4.png|dc-fs4.png]])
| Secret tunnel
| 9 Perception
| leads to the northwest corner and a skeleton
|}

=== Expedition ===
{{incomplete list}}

{| class="sortable wikitable"
|-
! Location, Underrail !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| [[Abandoned Waterway Facility]], east zone || Hidden stash in rock pillar || ? Perception || exceptionally high-quality mutated-dog leather
|-
| [[The Rig]], room #2 || [[Note (The Rig)]] || 5 Perception || under the bed
|-
| [[Chancer's Bay]], NE map || Hole through wall of shack || 10 Perception || biohazard boots, mutants
|-
| [[Isaac's River]], northernmost map || Hidden stash || 10 Perception || stash in north wall of cave
|-
| [[Core City Docks]], empty room next to Ray's shop || Vent in north wall || ? || leads into Ray's shop, dying burglar
|-
| [[Dude's House - Core City]] || Cracked floor panel/wall safe || ? || key to wall safe/the safe itself
|-
| [[Dude's House - Caves]] || Footlocker under bed || 9 Perception || psionic mentor
|-
| [[Grey Army Base]], two rooms east of the rift || Secret trapdoor || 8 Perception || electronic components
|-
| [[Grey Army Base]], 2nd floor || Wall safe || 9 Perception || secret safe in north wall of northwest room
|-
| [[Grey Army Base]], 2nd floor || Secret crawlspace || 9 Perception || Connects northern and southern parts of the ventilation system
|}

{{incomplete list}}

{| class="sortable wikitable"
|-
! Location, Black Sea !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| [[Black Sea]] ([[E4]]), north side of island || Entrance to cave || 11 Perception || entrance to pirate prison sewer, boss hermit crab
|-
| [[Siphoner Pools (Black Sea)]] || Underwater rock bridge || 7 Perception || leads to a lingula plant and a random treasure "crevice"
|-
| [[Siphoner Pools (Black Sea)]], west chamber || Buried box || 11 Perception || SGS credits, Charons, UN dollars
|-
| [[Black Sea]] ([[C8]]), hopper island cave, north wall, west side || Hidden stash || 9 Perception || secret stash in cave wall, quiver belt and special bolts
|-
| [[Black Sea]] ([[A10]]), Yngwar's cave island, hidden walkway in water on east side|| Hidden stash || ? Perception || secret stash in cave wall, coagulation shot(s) and rusting acid chemical ammo
|-
| [[Mutie Refuge]], crane room || Hidden vent shaft || 7 Perception || secret vent shaft through wall into crane room
|-
| [[West Storage Depot]], lvl 3 by the elevator || Hidden vent shaft || 8 Perception || secret vent shaft to blocked room
|-
| [[Crimson Meadow Horticulture Center]] lower floor, west section, north side || Hidden vent shaft || 11 Perception || secret vent shaft through wall
|-
| [[Black Sea]] ([[I1]]), outside the Health Center, SE corner || Hidden hole through wall || 10 Perception || secret passage to hidden room
|-
| [[Black Sea]] ([[I2]]), tower north of Health Center, 2nd floor || Hidden corpse || 9 Perception || corpse with loot (can be looted without detection)
|-
| [[Nexus of Technology]], level 1, SE room || Hidden wall safe || 9 Perception || loot
|-
| [[Port Crag]], east building || Hidden pipe tunnel || 9 Perception || Crawl through to west building, 2nd floor (agility 8; it is from the other direction)
|-
| [[Fetid Marsh]], east side of [[K5]]/west side of [[L5]] || Hidden map exit(s) || 7 Perception || secret camp with [[Signed Arena Ticket]] Oddity and [[Slimy Tablet Computer]]
|-
| [[Fetid Marsh]], SW corner of [[K4]] || Hidden pool jumps || 12 Perception || secret platforms for easier jumping across leper pool
|-
| Map M7 (two maps east of the Nexus), NW corner || Hidden passages || 9 Perception || secret passages to/from hidden room, shortcut past creepers
|}

{{Base abilities navbox}}
[[Category: Base Abilities]]

Perception

2022-02-14T08:46:32Z

Harperfan7: /* Base game */

{{Quote
| Perception represents character's ability to discern objects from far away as well as to notice hidden things in their vicinity. It helps the character to use ranged weapons more effectively, as well as detect hidden objects, passages and creatures.
| In-game description
}}

== Details ==
'''Perception''' determines your character's overall awareness and effectiveness with ranged weapons. It also affects your character's chance to detect hidden passages, objects or stealthed creatures and NPCs. It does not increase your vision or visible range. Perception does not directly affect your chance to hit, but rather increases your ranged weapon skills, which in turn increases your chance to hit with ranged weapons. Melee weapon hit rate is unchanged but increased with melee skill (through strength or dexterity). No items require perception to be used or equipped.

High perception score is important for characters who wish to use ranged weapons or find traps, stealthed enemies and secrets.

{{Synergies|
* [[Guns]]
* [[Crossbows]]
|
* [[Detection]]
* Finding secrets (uses perception score instead of detection)
}}

== Related feats ==
See [[:Category:Perception feats]].
* [[Snooping]] increases perception by 3 for the purposes of finding secrets.
* [[Increased Perception]] veteran feat increases it by 2.

== Related items ==

=== Headwear ===
* {{Itemlink|Adaptive Goggles}} (+1 Perception on equip)
* {{Itemlink|Metal Helmet}}s (-1 Perception on equip)
* {{Itemlink|Aegis Sec-trooper Helmet}}{{expedition-inline}} (-1 Perception on equip)
* {{Itemlink|Praetorian Lawgiver}} (-1 Perception on equip)
* {{Itemlink|Gas Mask}} (-2 Perception on equip)

=== Suit ===
* {{Itemlink|Tchortist Noble Robe}} (-1 Perception on equip)
* {{Itemlink|Tchortist Rassophore Armor}} (-1 Perception on equip)
* {{Itemlink|Biohazard Suit}} (-2 Perception on equip)
* {{Itemlink|Fire Proximity Suit}} (-2 Perception on equip)
* {{Itemlink|Robe}} (-2 Perception on equip)
* {{Itemlink|Tchortist Robe}} (-2 Perception on equip)

=== Food ===
* {{Itemlink|All-in}} (temporarily +3 all base abilities)
* {{Itemlink|Mushroom Salad}} (temporary +1 Perception)
* {{Itemlink|Junkyard Surprise}} (temporary random base ability effect, can only decrease Perception)
* {{Itemlink|Clean Deal}} (temporary -1 Perception)
* {{Itemlink|Mushroom Brew}} (temporary -2 Perception)
* {{Itemlink|Kzozel}} {{expedition-inline}} (temporary -2 Perception)
* {{Itemlink|White Dude}} (temporarily -2 Perception)

=== Drugs ===
* {{Itemlink|Third Eye (drug)|Third Eye}}{{expedition-inline}} (temporary +3 Perception for the purpose of finding secrets)
* {{Itemlink|Bioluminous Marsh Honey}}{{expedition-inline}} (temporary +2 Perception)
* {{Itemlink|Supersoldier Drug (medicine)|Supersoldier Drug}} (temporary +2 Perception)
* {{Itemlink|The Juice}} (temporary +1 Perception)

== Perception checks ==
[[File:Tilemarker Perception.png|left]]

Discovering secret areas is based on [[Perception]] score alone, unlike detecting traps and stealthed characters, which is based on [[Detection]]. Discovering some secrets requires prior knowledge instead of Perception score.

In addition to secrets, [[Underrail: Expedition]] expansion added visible in-world Perception checks similar to [[Strength]], [[Dexterity]] and [[Agility]] checks.

=== Base game ===

{{incomplete list}}

{| class="sortable wikitable"
|-
! Location !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| Lower Caves, [[South Gate Outposts]], Area '''South outposts''', inside NW outpost ([[:File:Forlornstations1.png|Forlornstations1.png]])
| Trapdoor
| 6 Perception
| [[:File:ForlornStations4_1.png|connects]] the two south outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''South outposts''', inside NE outpost ([[:File:Forlornstations1.png|Forlornstations1.png]])
| Trapdoor
| 6 Perception
| [[:File:ForlornStations4_1.png|connects]] the two south outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''East outpost''', inside the outpost ([[:File:ForlornStations4.png|ForlornStations4.png]])
| Trapdoor
| 7 Perception
| [[:File:ForlornStations1_1.png|connects]] east and northwest outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''East outpost''', northeast tunnels ([[:File:ForlornStations4.png|ForlornStations4.png]])
| Trapdoor
| 8 Perception
| [[:File:ForlornStations1_1.png|connects]] east and northwest outposts
|-
| [[Under-passages]] area 1, near SGS ([[:File:lup-a1.png|lup-a1.png]])
| Door
| 7 Perception
| secret room along east wall, [[Strange Comm Device]] oddity
|-
| Lower Underrail, [[GMS compound level 1]] ([[:File:GammaCompound1.png|GammaCompound1.png]])
| Safe
| 7 Perception
| secret safe in room near southwest corner
|-
| Lower Underrail, [[GMS compound level 2]] ([[:File:GammaCompound2.png|GammaCompound2.png]])
| Secret passage
| 7 Perception
| secret room along east wall, [[Old Data Medium]] oddity
|-
| Lower Underrail, [[GMS compound level 3]] ([[:File:GammaCompound3.png|GammaCompound3.png]])
| First aid box
| ? Perception
| SW room, hidden under couch, medicine including an advanced health hypo
|-
| [[Lower Caves]], east from [[GMS compound level 3]] ([[:File:cv12.png|cv12.png]])
| Secret crawlspace
| 8 Perception
| leads to the back entrance of the raider [[:File:Cv14.png|base]]
|-
| [[Lower Caves]], raider [[:File:Cv14.png|base]]
| Adrenaline shot
| ? Perception
| under Page's bed
|-
| [[Lower Caves]] between Mushroom Cove and Junkyard ([[:File:jyt1.png|jyt1.png]])
| Underwater rock bridge
| 8 Perception
| leads to a small island
|-
| Lower Caves, [[Siphoner Pools]], northeast ([[:File:jyt3.png|jyt3.png]])
| Underwater rock bridge
| 8 Perception
| leads to the northeast corner of the cave
|-
| Lower Caves, [[Water Treatment Facility]]
| Plasma cell
| ? Perception
| under a table in the power room
|-
| Lower Caves, [[Water Treatment Facility]]
| Shotgun shells
| ? Perception
| on top of a locker in the SE room on the upper level
|-
| Lower Caves, [[Water Treatment Facility]]
| First-aid kit
| ? Perception
| in the SE room on the lower level, has antidotes
|-
| Lower Caves, [[Water Treatment Facility]]
| Deathstalker corpse with oddity
| ? Perception
| in a secret compartment in the ventilation system
|-
| Lower Caves, [[Water Treatment Facility]]
| Hidden vent shaft
| ? Perception
| along north wall on the lower level, leads to secluded room with loot
|-
| [[Silent Isle]], southeast ([[:File:si1.png|si1.png]])
| Underwater rock bridge
| 7 Perception
| leads to a small island with a corpse
|-
| Junkyard, Security control room of [[Depot A]] east area ([[:File:ojy2.png|ojy2.png]])
| Secret door
| 10 perception
| shortcut bypassing the turrets
|-
| [[Lower Underrail]] area 6, Lunatic camp ([[:File:lu-a6.png|lu-a6.png]])
| Hidden stash
| 8 Perception
| secret footlocker near rock pile
|-
| [[Upper Caves]], south of Milton's camp ([[:File:lux-a10.png|lux-a10.png]])
| Underwater rock bridge
| 7 Perception
| shortcut between the north and south bank of the river
|-
| [[Upper Caves]], ironhead camp, north of the Bunker ([[:File:Lux-b16.png|Lux-b16.png]])
| Hidden stash
| ? Perception
| NW corner of map, through the backside of the camp, a jumping bean and tabi boots
|-
| [[Upper Caves]], Synesthete/Formedicator camp, under the Oculus
| Hidden stash
| ? Perception
| in the rock next to the Synesthete, 293 charons
|-
| [[Upper Caves]], misty river north of Hecate caves entrance
| Hidden box
| ? Perception
| contains a luxury item
|-
| [[Upper Caves]], Lost Vault entrance ([[:File:Lux-b9.png|Lux-b9.png]])
| Hidden ventilation shaft
| ? Perception
| leads into the shack behind the trader
|-
| [[Upper Caves]], Lost Vault interior
| Hidden first-aid box
| ? Perception
| 2 antidotes and a health hypo
|-
| [[Upper Caves]], Lost Vault interior
| Hidden footlocker
| ? Perception
| in room along north wall, electronic component(s)
|-
| [[Upper Caves]], Lost Vault interior
| Hidden bag
| ? Perception
| in room along west wall, advanced repair kits & a lighter
|-
| [[Lower Caves]], south of [[Crossroad Caves]] ([[:File:cv2.png|cv2.png]])
| Trapdoor
| 8 Perception
| [[:File:Cv2 1.png|connects]] southwest and southeast corner, locked box with random psionic mentor
|-
| [[Lower Caves]], south of [[Crossroad Caves]] ([[:File:cv2.png|cv2.png]])
| Underwater rock bridge
| 7 Perception
| shortcut bypassing siphoners
|-
| Lower Caves, south of [[Camp Hathor]] ([[:File:cv19.png|cv19.png]])
| Underwater rock bridge
| 7 Perception
| shortcut bypassing rathound nest
|-
| Lower Caves, [[Rathound King Lair]] ([[:File:rkl2.png|rkl2.png]])
| Door
| Quest trigger
| shortcut leading outside if you offer to [[Kidnap Sarine|kidnap Sarine]] or [[Kill the Rathound King|negotiate a truce]] with Camp Hathor
|-
| Lower Caves, [[Rathound King Lair]], outside ([[:File:cv21.png|cv21.png]])
| Door
| Quest trigger
| shortcut leading to the lair if you offer to [[Kidnap Sarine|kidnap Sarine]] or [[Kill the Rathound King|negotiate a truce]] with Camp Hathor
|-
| Lower Underrail, [[Abandoned Warehouse]] ([[:File:aw1-1.png|aw1-1.png]])
| Secret crawlspace
| 7 Perception
| secret ventilation shaft section with a footlocker and a rathound
|-
| [[Rail Crossing]], behind bar ([[:File:rc1.png|rc1.png]])
| Secret door
| 7 Perception
| leads to [[Deacon]]'s shop
|-
| Rail Crossing, [[Buzzer's Shop]]'s ventilation shafts ([[:File:rc_shop 3.png|rc_shop 3.png]])
| Hidden Ventilation Shaft
| 7 Perception
| secret ventilation shaft section with [[Hardware Bug]]
|-
| Lower Underrail, [[Dude's vision|The warehouse from Dude's vision]] ([[:File:lu-b4.png|lu-b4.png]])
| Secret crawlspace
| Quest trigger
| leads to the lower level of the warehouse during Dude's quest
|-
| [[Free Drones Base]], east room
| Trapdoor
| 11 Perception
| can't be opened; handle breaks
|-
| [[Upper Caves]], north from the Hanging Rat bar ([[:File:lux-c2.png|lux-c2.png]])
| Hidden stash
| 11 Perception
| secret stash inside rock pillar (not visible on the linked map)
|-
| Foundry, Evelyn's home ([[:File:fo3.png|fo3.png]])
| Trapdoor
| 10 Perception
| [[:File:Fo3-tunnel.png|connects]] Evelyn's house and bunker
|-
| Foundry, Evelyn's home ([[:File:fo3.png|fo3.png]])
| Secret crawlspace
| Quest trigger
| leads to Evelyn's [[:File:Fo-bunker.png|bunker]] if a male player character [[Foundry murders|has a drink]] with her
|-
| [[Lower Underrail]], cave west of [[Foundry]] ([[:File:lu-b22x.png|lu-b22x.png]])
| Hidden stash
| 10 Perception
| secret stash inside rock pillar
|-
| Core City, SW middle level ([[:File:Cc17.png|Cc17.png]])
| Ladder
| 14 Perception
| leads to utility section electric coil area
|-
| Core City, utility section ([[:File:Cc_utility.png|Cc_utility.png]])
| Squeeze though gap in pipes
| ? Perception
| leads to Phreak's hideout
|-
| Core City, utility section steam area
| Junk pile
| ? Perception
| mechanical components (probably randomized), NW corridor
|-
| Core City, utility section steam area
| Plasma cell
| ? Perception
| hidden plasma cell, through the door east of the steam console, along the south wall
|-
| Core City, utility section electric coil area
| Bag
| ? Perception
| knife (probably randomized), SE room on 2nd floor
|-
| Core City, [[Drop Zone]] ([[:File:cc15.png|cc15.png]])
| Secret door
| Quest trigger or 6 Perception
| leads to Bogdan's [[:File:Cc15x.png|hideout]], can be found with perception or by learning about it from [[Kupusije]] during [[Find Bogdan]], or with perception after starting [[Sewers generator]]/[[Retrieve ICPD]]
|-
| Core City, inside one of [[Drop Zone]] buildings ([[:File:cc5_1.png|cc5_1.png]])
| Trapdoor
| 8 Perception
| leads to the basement
|-
| Core City, north [[Core City Sewers]] ([[:File:cc_s2.png|cc_s2.png]])
| Door
| 8 Perception
| leads to a secret room on the west side
|-
| Core City, northwest [[Core City Sewers]] ([[:File:cc_s6 2.png|cc_s6 2.png]])
| Switch
| Quest trigger
| opens door to Acid Hunters' hideout during the [[Look for Cornell]] quest
|-
| [[Upper Underrail]], east of [[Notus Living Block]] ([[:File:up3x.png|up3x.png]])
| Trapdoor
| 7 Perception
| [[:File:Up3x_1.png|connects]] trapdoor and a Lunatic base
|-
| [[Upper Underrail]], inside [[Panacea Lab]] ([[:File:plb.png|plb.png]])
| Switch
| 8 Perception
| opens door to the room in the northeast corner
|-
| [[Upper Underrail]], northeast corner ([[:File:Up7.png|Up7.png]])
| Ventilation Shaft
| ? Perception
| connects inside of structure to outside, north of the barrel fire
|-
| [[Upper Underrail]], utility tower, first room past metal gate
| Ventilation Shaft
| ? Perception
| ladder leading up, skips some floors
|-
| [[Institute of Tchort]], armory, behind the locked fence ([[:File:Tch-mil.png|Tch-mil.png]])
| Box of ammo
| ? Perception
| x11 12.7mm WC (possibly randomized)
|-
| [[Institute of Tchort]], utility section 2, south room ([[:File:Tch-util2.png|Tch-util2.png]])
| Box
| ? Perception
| one aegis, three gizzard enzymes
|-
| [[Institute of Tchort]], utility section 3, northwest corner ([[:File:tch-util3.png|tch-util3.png]])
| Morphine shot on file cabinet
| ? Perception
| one morphine shot
|-
| [[Institute of Tchort]], utility section 3, northeast corner ([[:File:tch-util3.png|tch-util3.png]])
| Ventilation Shaft
| 8 Perception
| [[:File:Tch-vent.png|connects]] west wing and utility section
|-
| [[Institute of Tchort]], west wing, in coil spider room ([[:File:tch-ww2.png|tch-ww2.png]])
| Ventilation Shaft
| 7 Perception
| [[:File:Tch-vent.png|connects]] west wing and utility section
|-
| Institute of Tchort, [[Harpocrates Station]], north room ([[:File:tch_met.png|tch_met.png]])
| Secret crawlspace
| Quest trigger
| leads to the ventilation system during [[Track down Rassophore Nevil]]
|-
| Institute of Tchort, [[Upper Underrail Ventilation System]] ([[:File:tch_mv1.png|tch_mv1.png]])
| Secret crawlspace
| 8 Perception
| secret ventilation shaft section with a box
|-
| Institute of Tchort, [[Upper Underrail Ventilation System]], southwest room ([[:File:tch_mv1_2.png|tch_mv1_2.png]])
| Secret trapdoor
| 10 Perception
| leads to hidden [[:File:Tch_mv1_3.png|basement]]
|-
| [[Deep Caverns]], lake, northeast bank ([[:File:dc-lk.png|dc-lk.png]])
| Underwater rock bridge
| 7 Perception
| leads to a small island with hackable box
|-
| [[Deep Caverns]], lake, southwest islet ([[:File:dc-lk.png|dc-lk.png]])
| Sniper rifle
| 10 Perception
| reveals [[Black Arrow]] sniper rifle
|-
| Deep Caverns, [[Hollow Earth]] ([[:File:dc-la2.png|dc-la2.png]])
| Secret crawlspace
| 8 Perception
| secret entrance to the small building on the east
|-
| Deep Caverns, checkpoint between Caerus and warehouses ([[:File:dc-cp1.png|dc-cp1.png]])
| Underwater rock bridge
| 8 Perception
| leads to the east bank of the lake
|-
| Deep Caverns, [[Warehouse Block 2]], south toxic storage ([[:File:dc-wh3.png|dc-wh3.png]])
| Trapdoor
| 8 Perception
| leads to lower [[:File:Dc-wh3_1.png|level]], [[Psionic Mentor: Electrokinetic Imprint|Electrokinetic Imprint]] mentor
|-
| Deep Caverns, [[Caerus Residential]], northwest building, second floor ([[:File:dc-res2 2.png|dc-res2 2.png]])
| Ventilation Shaft
| 10 Perception
| leads to a [[:File:Dc-sc.png|cavern]] with [[Gunter Vasilica]], [[Psionic Mentor: Pseudo-spatial Projection|Pseudo-spatial Projection]] mentor, and [[Regenerative Mixture]]
|-
| Deep Caverns, [[Caerus Residential]], west apartment ([[:File:dc-res3.png|dc-res3.png]])
| Safe
| 6 Perception
| secret (empty) safe
|-
| Deep Caverns, [[Arke Power Station]], utility section toxic storage ([[:File:dc-pp_ut.png|dc-pp_ut.png]])
| Trapdoor
| 11 Perception
| [[:File:Dc-pp_ut_1.png|connects]] toxic storage and storage room, random psionic mentor
|-
| Deep Caverns, [[Arke Power Station]], utility section storage room ([[:File:dc-pp_ut.png|dc-pp_ut.png]])
| Trapdoor
| 10 Perception
| [[:File:Dc-pp_ut_1.png|connects]] toxic storage and storage room, random psionic mentor
|-
| Deep Caverns, [[Mushroom Forest|Deep Mushroom Forest]] ([[:File:dc-fs4.png|dc-fs4.png]])
| Secret tunnel
| 9 Perception
| leads to the northwest corner and a skeleton
|}

=== Expedition ===
{{incomplete list}}

{| class="sortable wikitable"
|-
! Location, Underrail !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| [[Abandoned Waterway Facility]], east zone || Hidden stash in rock pillar || ? Perception || exceptionally high-quality mutated-dog leather
|-
| [[The Rig]], room #2 || [[Note (The Rig)]] || 5 Perception || under the bed
|-
| [[Chancer's Bay]], NE map || Hole through wall of shack || 10 Perception || biohazard boots, mutants
|-
| [[Isaac's River]], northernmost map || Hidden stash || 10 Perception || stash in north wall of cave
|-
| [[Core City Docks]], empty room next to Ray's shop || Vent in north wall || ? || leads into Ray's shop, dying burglar
|-
| [[Dude's House - Core City]] || Cracked floor panel/wall safe || ? || key to wall safe/the safe itself
|-
| [[Dude's House - Caves]] || Footlocker under bed || 9 Perception || psionic mentor
|-
| [[Grey Army Base]], two rooms east of the rift || Secret trapdoor || 8 Perception || electronic components
|-
| [[Grey Army Base]], 2nd floor || Wall safe || 9 Perception || secret safe in north wall of northwest room
|-
| [[Grey Army Base]], 2nd floor || Secret crawlspace || 9 Perception || Connects northern and southern parts of the ventilation system
|}

{{incomplete list}}

{| class="sortable wikitable"
|-
! Location, Black Sea !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| [[Black Sea]] ([[E4]]), north side of island || Entrance to cave || 11 Perception || entrance to pirate prison sewer, boss hermit crab
|-
| [[Siphoner Pools (Black Sea)]] || Underwater rock bridge || 7 Perception || leads to a lingula plant and a random treasure "crevice"
|-
| [[Siphoner Pools (Black Sea)]], west chamber || Buried box || 11 Perception || SGS credits, Charons, UN dollars
|-
| [[Black Sea]] ([[C8]]), hopper island cave, north wall, west side || Hidden stash || 9 Perception || secret stash in cave wall, quiver belt and special bolts
|-
| [[Black Sea]] ([[A10]]), Yngwar's cave island, hidden walkway in water on east side|| Hidden stash || ? Perception || secret stash in cave wall, coagulation shot(s) and rusting acid chemical ammo
|-
| [[Mutie Refuge]], crane room || Hidden vent shaft || 7 Perception || secret vent shaft through wall into crane room
|-
| [[West Storage Depot]], lvl 3 by the elevator || Hidden vent shaft || 8 Perception || secret vent shaft to blocked room
|-
| [[Crimson Meadow Horticulture Center]] lower floor, west section, north side || Hidden vent shaft || 11 Perception || secret vent shaft through wall
|-
| [[Black Sea]] ([[I1]]), outside the Health Center, SE corner || Hidden hole through wall || 10 Perception || secret passage to hidden room
|-
| [[Black Sea]] ([[I2]]), tower north of Health Center, 2nd floor || Hidden corpse || 9 Perception || corpse with loot (can be looted without detection)
|-
| [[Nexus of Technology]], level 1, SE room || Hidden wall safe || 9 Perception || loot
|-
| [[Port Crag]], east building || Hidden pipe tunnel || 9 Perception || Crawl through to west building, 2nd floor (agility 8; it is from the other direction)
|-
| [[Fetid Marsh]], east side of [[K5]]/west side of [[L5]] || Hidden map exit(s) || 7 Perception || secret camp with [[Signed Arena Ticket]] Oddity and [[Slimy Tablet Computer]]
|-
| [[Fetid Marsh]], SW corner of [[K4]] || Hidden pool jumps || 12 Perception || secret platforms for easier jumping across leper pool
|-
| Map M7 (two maps east of the Nexus), NW corner || Hidden passages || 9 Perception || secret passages to/from hidden room, shortcut past creepers
|}

{{Base abilities navbox}}
[[Category: Base Abilities]]

Perception

2022-02-14T07:42:01Z

Harperfan7: /* Base game */

{{Quote
| Perception represents character's ability to discern objects from far away as well as to notice hidden things in their vicinity. It helps the character to use ranged weapons more effectively, as well as detect hidden objects, passages and creatures.
| In-game description
}}

== Details ==
'''Perception''' determines your character's overall awareness and effectiveness with ranged weapons. It also affects your character's chance to detect hidden passages, objects or stealthed creatures and NPCs. It does not increase your vision or visible range. Perception does not directly affect your chance to hit, but rather increases your ranged weapon skills, which in turn increases your chance to hit with ranged weapons. Melee weapon hit rate is unchanged but increased with melee skill (through strength or dexterity). No items require perception to be used or equipped.

High perception score is important for characters who wish to use ranged weapons or find traps, stealthed enemies and secrets.

{{Synergies|
* [[Guns]]
* [[Crossbows]]
|
* [[Detection]]
* Finding secrets (uses perception score instead of detection)
}}

== Related feats ==
See [[:Category:Perception feats]].
* [[Snooping]] increases perception by 3 for the purposes of finding secrets.
* [[Increased Perception]] veteran feat increases it by 2.

== Related items ==

=== Headwear ===
* {{Itemlink|Adaptive Goggles}} (+1 Perception on equip)
* {{Itemlink|Metal Helmet}}s (-1 Perception on equip)
* {{Itemlink|Aegis Sec-trooper Helmet}}{{expedition-inline}} (-1 Perception on equip)
* {{Itemlink|Praetorian Lawgiver}} (-1 Perception on equip)
* {{Itemlink|Gas Mask}} (-2 Perception on equip)

=== Suit ===
* {{Itemlink|Tchortist Noble Robe}} (-1 Perception on equip)
* {{Itemlink|Tchortist Rassophore Armor}} (-1 Perception on equip)
* {{Itemlink|Biohazard Suit}} (-2 Perception on equip)
* {{Itemlink|Fire Proximity Suit}} (-2 Perception on equip)
* {{Itemlink|Robe}} (-2 Perception on equip)
* {{Itemlink|Tchortist Robe}} (-2 Perception on equip)

=== Food ===
* {{Itemlink|All-in}} (temporarily +3 all base abilities)
* {{Itemlink|Mushroom Salad}} (temporary +1 Perception)
* {{Itemlink|Junkyard Surprise}} (temporary random base ability effect, can only decrease Perception)
* {{Itemlink|Clean Deal}} (temporary -1 Perception)
* {{Itemlink|Mushroom Brew}} (temporary -2 Perception)
* {{Itemlink|Kzozel}} {{expedition-inline}} (temporary -2 Perception)
* {{Itemlink|White Dude}} (temporarily -2 Perception)

=== Drugs ===
* {{Itemlink|Third Eye (drug)|Third Eye}}{{expedition-inline}} (temporary +3 Perception for the purpose of finding secrets)
* {{Itemlink|Bioluminous Marsh Honey}}{{expedition-inline}} (temporary +2 Perception)
* {{Itemlink|Supersoldier Drug (medicine)|Supersoldier Drug}} (temporary +2 Perception)
* {{Itemlink|The Juice}} (temporary +1 Perception)

== Perception checks ==
[[File:Tilemarker Perception.png|left]]

Discovering secret areas is based on [[Perception]] score alone, unlike detecting traps and stealthed characters, which is based on [[Detection]]. Discovering some secrets requires prior knowledge instead of Perception score.

In addition to secrets, [[Underrail: Expedition]] expansion added visible in-world Perception checks similar to [[Strength]], [[Dexterity]] and [[Agility]] checks.

=== Base game ===

{{incomplete list}}

{| class="sortable wikitable"
|-
! Location !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| Lower Caves, [[South Gate Outposts]], Area '''South outposts''', inside NW outpost ([[:File:Forlornstations1.png|Forlornstations1.png]])
| Trapdoor
| 6 Perception
| [[:File:ForlornStations4_1.png|connects]] the two south outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''South outposts''', inside NE outpost ([[:File:Forlornstations1.png|Forlornstations1.png]])
| Trapdoor
| 6 Perception
| [[:File:ForlornStations4_1.png|connects]] the two south outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''East outpost''', inside the outpost ([[:File:ForlornStations4.png|ForlornStations4.png]])
| Trapdoor
| 7 Perception
| [[:File:ForlornStations1_1.png|connects]] east and northwest outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''East outpost''', northeast tunnels ([[:File:ForlornStations4.png|ForlornStations4.png]])
| Trapdoor
| 8 Perception
| [[:File:ForlornStations1_1.png|connects]] east and northwest outposts
|-
| [[Under-passages]] area 1, near SGS ([[:File:lup-a1.png|lup-a1.png]])
| Door
| 7 Perception
| secret room along east wall, [[Strange Comm Device]] oddity
|-
| Lower Underrail, [[GMS compound level 1]] ([[:File:GammaCompound1.png|GammaCompound1.png]])
| Safe
| 7 Perception
| secret safe in room near southwest corner
|-
| Lower Underrail, [[GMS compound level 2]] ([[:File:GammaCompound2.png|GammaCompound2.png]])
| Secret passage
| 7 Perception
| secret room along east wall, [[Old Data Medium]] oddity
|-
| Lower Underrail, [[GMS compound level 3]] ([[:File:GammaCompound3.png|GammaCompound3.png]])
| First aid box
| ? Perception
| SW room, hidden under couch, medicine including an advanced health hypo
|-
| [[Lower Caves]], east from [[GMS compound level 3]] ([[:File:cv12.png|cv12.png]])
| Secret crawlspace
| 8 Perception
| leads to the back entrance of the raider [[:File:Cv14.png|base]]
|-
| [[Lower Caves]], raider [[:File:Cv14.png|base]]
| Adrenaline shot
| ? Perception
| under Page's bed
|-
| [[Lower Caves]] between Mushroom Cove and Junkyard ([[:File:jyt1.png|jyt1.png]])
| Underwater rock bridge
| 8 Perception
| leads to a small island
|-
| Lower Caves, [[Siphoner Pools]], northeast ([[:File:jyt3.png|jyt3.png]])
| Underwater rock bridge
| 8 Perception
| leads to the northeast corner of the cave
|-
| Lower Caves, [[Water Treatment Facility]]
| Plasma cell
| ? Perception
| under a table in the power room
|-
| Lower Caves, [[Water Treatment Facility]]
| Shotgun shells
| ? Perception
| on top of a locker in the SE room on the upper level
|-
| Lower Caves, [[Water Treatment Facility]]
| First-aid kit
| ? Perception
| in the SE room on the lower level, has antidotes
|-
| Lower Caves, [[Water Treatment Facility]]
| Deathstalker corpse with oddity
| ? Perception
| in a secret compartment in the ventilation system
|-
| Lower Caves, [[Water Treatment Facility]]
| Hidden vent shaft
| ? Perception
| along north wall on the lower level, leads to secluded room with loot
|-
| [[Silent Isle]], southeast ([[:File:si1.png|si1.png]])
| Underwater rock bridge
| 7 Perception
| leads to a small island with a corpse
|-
| Junkyard, Security control room of [[Depot A]] east area ([[:File:ojy2.png|ojy2.png]])
| Secret door
| 10 perception
| shortcut bypassing the turrets
|-
| [[Lower Underrail]] area 6, Lunatic camp ([[:File:lu-a6.png|lu-a6.png]])
| Hidden stash
| 8 Perception
| secret footlocker near rock pile
|-
| [[Upper Caves]], south of Milton's camp ([[:File:lux-a10.png|lux-a10.png]])
| Underwater rock bridge
| 7 Perception
| shortcut between the north and south bank of the river
|-
| [[Upper Caves]], ironhead camp, north of the Bunker ([[:File:Lux-b16.png|Lux-b16.png]])
| Hidden stash
| ? Perception
| NW corner of map, through the backside of the camp, a jumping bean and tabi boots
|-
| [[Upper Caves]], Synesthete/Formedicator camp, under the Oculus
| Hidden stash
| ? Perception
| in the rock next to the Synesthete, 293 charons
|-
| [[Upper Caves]], misty river north of Hecate caves entrance
| Hidden box
| ? Perception
| contains a luxury item
|-
| [[Upper Caves]], Lost Vault entrance ([[:File:Lux-b9.png|Lux-b9.png]])
| Hidden ventilation shaft
| ? Perception
| leads into the shack behind the trader
|-
| [[Upper Caves]], Lost Vault interior
| Hidden first-aid box
| ? Perception
| 2 antidotes and a health hypo
|-
| [[Upper Caves]], Lost Vault interior
| Hidden footlocker
| ? Perception
| in room along north wall, electronic component(s)
|-
| [[Upper Caves]], Lost Vault interior
| Hidden bag
| ? Perception
| in room along west wall, advanced repair kits & a lighter
|-
| [[Lower Caves]], south of [[Crossroad Caves]] ([[:File:cv2.png|cv2.png]])
| Trapdoor
| 8 Perception
| [[:File:Cv2 1.png|connects]] southwest and southeast corner, locked box with random psionic mentor
|-
| [[Lower Caves]], south of [[Crossroad Caves]] ([[:File:cv2.png|cv2.png]])
| Underwater rock bridge
| 7 Perception
| shortcut bypassing siphoners
|-
| Lower Caves, south of [[Camp Hathor]] ([[:File:cv19.png|cv19.png]])
| Underwater rock bridge
| 7 Perception
| shortcut bypassing rathound nest
|-
| Lower Caves, [[Rathound King Lair]] ([[:File:rkl2.png|rkl2.png]])
| Door
| Quest trigger
| shortcut leading outside if you offer to [[Kidnap Sarine|kidnap Sarine]] or [[Kill the Rathound King|negotiate a truce]] with Camp Hathor
|-
| Lower Caves, [[Rathound King Lair]], outside ([[:File:cv21.png|cv21.png]])
| Door
| Quest trigger
| shortcut leading to the lair if you offer to [[Kidnap Sarine|kidnap Sarine]] or [[Kill the Rathound King|negotiate a truce]] with Camp Hathor
|-
| Lower Underrail, [[Abandoned Warehouse]] ([[:File:aw1-1.png|aw1-1.png]])
| Secret crawlspace
| 7 Perception
| secret ventilation shaft section with a footlocker and a rathound
|-
| [[Rail Crossing]], behind bar ([[:File:rc1.png|rc1.png]])
| Secret door
| 7 Perception
| leads to [[Deacon]]'s shop
|-
| Rail Crossing, [[Buzzer's Shop]]'s ventilation shafts ([[:File:rc_shop 3.png|rc_shop 3.png]])
| Hidden Ventilation Shaft
| 7 Perception
| secret ventilation shaft section with [[Hardware Bug]]
|-
| Lower Underrail, [[Dude's vision|The warehouse from Dude's vision]] ([[:File:lu-b4.png|lu-b4.png]])
| Secret crawlspace
| Quest trigger
| leads to the lower level of the warehouse during Dude's quest
|-
| [[Free Drones Base]], east room
| Trapdoor
| 11 Perception
| can't be opened; handle breaks
|-
| [[Upper Caves]], north from the Hanging Rat bar ([[:File:lux-c2.png|lux-c2.png]])
| Hidden stash
| 11 Perception
| secret stash inside rock pillar (not visible on the linked map)
|-
| Foundry, Evelyn's home ([[:File:fo3.png|fo3.png]])
| Trapdoor
| 10 Perception
| [[:File:Fo3-tunnel.png|connects]] Evelyn's house and bunker
|-
| Foundry, Evelyn's home ([[:File:fo3.png|fo3.png]])
| Secret crawlspace
| Quest trigger
| leads to Evelyn's [[:File:Fo-bunker.png|bunker]] if a male player character [[Foundry murders|has a drink]] with her
|-
| [[Lower Underrail]], cave west of [[Foundry]] ([[:File:lu-b22x.png|lu-b22x.png]])
| Hidden stash
| 10 Perception
| secret stash inside rock pillar
|-
| Core City, SW middle level ([[:File:Cc17.png|Cc17.png]])
| Ladder
| 14 Perception
| leads to utility section electric coil area
|-
| Core City, utility section ([[:File:Cc_utility.png|Cc_utility.png]])
| Squeeze though gap in pipes
| ? Perception
| leads to Phreak's hideout
|-
| Core City, utility section steam area
| Junk pile
| ? Perception
| mechanical components (probably randomized), NW corridor
|-
| Core City, utility section steam area
| Plasma cell
| ? Perception
| hidden plasma cell, through the door east of the steam console, along the south wall
|-
| Core City, utility section electric coil area
| Bag
| ? Perception
| knife (probably randomized), SE room on 2nd floor
|-
| Core City, [[Drop Zone]] ([[:File:cc15.png|cc15.png]])
| Secret door
| Quest trigger or 6 Perception
| leads to Bogdan's [[:File:Cc15x.png|hideout]], can be found with perception or by learning about it from [[Kupusije]] during [[Find Bogdan]], or with perception after starting [[Sewers generator]]/[[Retrieve ICPD]]
|-
| Core City, inside one of [[Drop Zone]] buildings ([[:File:cc5_1.png|cc5_1.png]])
| Trapdoor
| 8 Perception
| leads to the basement
|-
| Core City, north [[Core City Sewers]] ([[:File:cc_s2.png|cc_s2.png]])
| Door
| 8 Perception
| leads to a secret room on the west side
|-
| Core City, northwest [[Core City Sewers]] ([[:File:cc_s6 2.png|cc_s6 2.png]])
| Switch
| Quest trigger
| opens door to Acid Hunters' hideout during the [[Look for Cornell]] quest
|-
| [[Upper Underrail]], east of [[Notus Living Block]] ([[:File:up3x.png|up3x.png]])
| Trapdoor
| 7 Perception
| [[:File:Up3x_1.png|connects]] trapdoor and a Lunatic base
|-
| [[Upper Underrail]], inside [[Panacea Lab]] ([[:File:plb.png|plb.png]])
| Switch
| 8 Perception
| opens door to the room in the northeast corner
|-
| [[Upper Underrail]], northeast corner ([[:File:Up7.png|Up7.png]])
| Ventilation Shaft
| ? Perception
| connects inside of structure to outside, north of the barrel fire
|-
| [[Upper Underrail]], utility tower, first room past metal gate
| Ventilation Shaft
| ? Perception
| ladder leading up, skips some floors
|-
| [[Institute of Tchort]], utility section 2, south room ([[:File:Tch-util2.png|Tch-util2.png]])
| Box
| ? Perception
| one aegis, three gizzard enzymes
|-
| [[Institute of Tchort]], utility section 3, northwest corner ([[:File:tch-util3.png|tch-util3.png]])
| Morphine shot on file cabinet
| ? Perception
| one morphine shot
|-
| [[Institute of Tchort]], utility section 3, northeast corner ([[:File:tch-util3.png|tch-util3.png]])
| Ventilation Shaft
| 8 Perception
| [[:File:Tch-vent.png|connects]] west wing and utility section
|-
| [[Institute of Tchort]], west wing, in coil spider room ([[:File:tch-ww2.png|tch-ww2.png]])
| Ventilation Shaft
| 7 Perception
| [[:File:Tch-vent.png|connects]] west wing and utility section
|-
| Institute of Tchort, [[Harpocrates Station]], north room ([[:File:tch_met.png|tch_met.png]])
| Secret crawlspace
| Quest trigger
| leads to the ventilation system during [[Track down Rassophore Nevil]]
|-
| Institute of Tchort, [[Upper Underrail Ventilation System]] ([[:File:tch_mv1.png|tch_mv1.png]])
| Secret crawlspace
| 8 Perception
| secret ventilation shaft section with a box
|-
| Institute of Tchort, [[Upper Underrail Ventilation System]], southwest room ([[:File:tch_mv1_2.png|tch_mv1_2.png]])
| Secret trapdoor
| 10 Perception
| leads to hidden [[:File:Tch_mv1_3.png|basement]]
|-
| [[Deep Caverns]], lake, northeast bank ([[:File:dc-lk.png|dc-lk.png]])
| Underwater rock bridge
| 7 Perception
| leads to a small island with hackable box
|-
| [[Deep Caverns]], lake, southwest islet ([[:File:dc-lk.png|dc-lk.png]])
| Sniper rifle
| 10 Perception
| reveals [[Black Arrow]] sniper rifle
|-
| Deep Caverns, [[Hollow Earth]] ([[:File:dc-la2.png|dc-la2.png]])
| Secret crawlspace
| 8 Perception
| secret entrance to the small building on the east
|-
| Deep Caverns, checkpoint between Caerus and warehouses ([[:File:dc-cp1.png|dc-cp1.png]])
| Underwater rock bridge
| 8 Perception
| leads to the east bank of the lake
|-
| Deep Caverns, [[Warehouse Block 2]], south toxic storage ([[:File:dc-wh3.png|dc-wh3.png]])
| Trapdoor
| 8 Perception
| leads to lower [[:File:Dc-wh3_1.png|level]], [[Psionic Mentor: Electrokinetic Imprint|Electrokinetic Imprint]] mentor
|-
| Deep Caverns, [[Caerus Residential]], northwest building, second floor ([[:File:dc-res2 2.png|dc-res2 2.png]])
| Ventilation Shaft
| 10 Perception
| leads to a [[:File:Dc-sc.png|cavern]] with [[Gunter Vasilica]], [[Psionic Mentor: Pseudo-spatial Projection|Pseudo-spatial Projection]] mentor, and [[Regenerative Mixture]]
|-
| Deep Caverns, [[Caerus Residential]], west apartment ([[:File:dc-res3.png|dc-res3.png]])
| Safe
| 6 Perception
| secret (empty) safe
|-
| Deep Caverns, [[Arke Power Station]], utility section toxic storage ([[:File:dc-pp_ut.png|dc-pp_ut.png]])
| Trapdoor
| 11 Perception
| [[:File:Dc-pp_ut_1.png|connects]] toxic storage and storage room, random psionic mentor
|-
| Deep Caverns, [[Arke Power Station]], utility section storage room ([[:File:dc-pp_ut.png|dc-pp_ut.png]])
| Trapdoor
| 10 Perception
| [[:File:Dc-pp_ut_1.png|connects]] toxic storage and storage room, random psionic mentor
|-
| Deep Caverns, [[Mushroom Forest|Deep Mushroom Forest]] ([[:File:dc-fs4.png|dc-fs4.png]])
| Secret tunnel
| 9 Perception
| leads to the northwest corner and a skeleton
|}

=== Expedition ===
{{incomplete list}}

{| class="sortable wikitable"
|-
! Location, Underrail !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| [[Abandoned Waterway Facility]], east zone || Hidden stash in rock pillar || ? Perception || exceptionally high-quality mutated-dog leather
|-
| [[The Rig]], room #2 || [[Note (The Rig)]] || 5 Perception || under the bed
|-
| [[Chancer's Bay]], NE map || Hole through wall of shack || 10 Perception || biohazard boots, mutants
|-
| [[Isaac's River]], northernmost map || Hidden stash || 10 Perception || stash in north wall of cave
|-
| [[Core City Docks]], empty room next to Ray's shop || Vent in north wall || ? || leads into Ray's shop, dying burglar
|-
| [[Dude's House - Core City]] || Cracked floor panel/wall safe || ? || key to wall safe/the safe itself
|-
| [[Dude's House - Caves]] || Footlocker under bed || 9 Perception || psionic mentor
|-
| [[Grey Army Base]], two rooms east of the rift || Secret trapdoor || 8 Perception || electronic components
|-
| [[Grey Army Base]], 2nd floor || Wall safe || 9 Perception || secret safe in north wall of northwest room
|-
| [[Grey Army Base]], 2nd floor || Secret crawlspace || 9 Perception || Connects northern and southern parts of the ventilation system
|}

{{incomplete list}}

{| class="sortable wikitable"
|-
! Location, Black Sea !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| [[Black Sea]] ([[E4]]), north side of island || Entrance to cave || 11 Perception || entrance to pirate prison sewer, boss hermit crab
|-
| [[Siphoner Pools (Black Sea)]] || Underwater rock bridge || 7 Perception || leads to a lingula plant and a random treasure "crevice"
|-
| [[Siphoner Pools (Black Sea)]], west chamber || Buried box || 11 Perception || SGS credits, Charons, UN dollars
|-
| [[Black Sea]] ([[C8]]), hopper island cave, north wall, west side || Hidden stash || 9 Perception || secret stash in cave wall, quiver belt and special bolts
|-
| [[Black Sea]] ([[A10]]), Yngwar's cave island, hidden walkway in water on east side|| Hidden stash || ? Perception || secret stash in cave wall, coagulation shot(s) and rusting acid chemical ammo
|-
| [[Mutie Refuge]], crane room || Hidden vent shaft || 7 Perception || secret vent shaft through wall into crane room
|-
| [[West Storage Depot]], lvl 3 by the elevator || Hidden vent shaft || 8 Perception || secret vent shaft to blocked room
|-
| [[Crimson Meadow Horticulture Center]] lower floor, west section, north side || Hidden vent shaft || 11 Perception || secret vent shaft through wall
|-
| [[Black Sea]] ([[I1]]), outside the Health Center, SE corner || Hidden hole through wall || 10 Perception || secret passage to hidden room
|-
| [[Black Sea]] ([[I2]]), tower north of Health Center, 2nd floor || Hidden corpse || 9 Perception || corpse with loot (can be looted without detection)
|-
| [[Nexus of Technology]], level 1, SE room || Hidden wall safe || 9 Perception || loot
|-
| [[Port Crag]], east building || Hidden pipe tunnel || 9 Perception || Crawl through to west building, 2nd floor (agility 8; it is from the other direction)
|-
| [[Fetid Marsh]], east side of [[K5]]/west side of [[L5]] || Hidden map exit(s) || 7 Perception || secret camp with [[Signed Arena Ticket]] Oddity and [[Slimy Tablet Computer]]
|-
| [[Fetid Marsh]], SW corner of [[K4]] || Hidden pool jumps || 12 Perception || secret platforms for easier jumping across leper pool
|-
| Map M7 (two maps east of the Nexus), NW corner || Hidden passages || 9 Perception || secret passages to/from hidden room, shortcut past creepers
|}

{{Base abilities navbox}}
[[Category: Base Abilities]]

Perception

2022-02-14T07:02:37Z

Harperfan7: /* Base game */

{{Quote
| Perception represents character's ability to discern objects from far away as well as to notice hidden things in their vicinity. It helps the character to use ranged weapons more effectively, as well as detect hidden objects, passages and creatures.
| In-game description
}}

== Details ==
'''Perception''' determines your character's overall awareness and effectiveness with ranged weapons. It also affects your character's chance to detect hidden passages, objects or stealthed creatures and NPCs. It does not increase your vision or visible range. Perception does not directly affect your chance to hit, but rather increases your ranged weapon skills, which in turn increases your chance to hit with ranged weapons. Melee weapon hit rate is unchanged but increased with melee skill (through strength or dexterity). No items require perception to be used or equipped.

High perception score is important for characters who wish to use ranged weapons or find traps, stealthed enemies and secrets.

{{Synergies|
* [[Guns]]
* [[Crossbows]]
|
* [[Detection]]
* Finding secrets (uses perception score instead of detection)
}}

== Related feats ==
See [[:Category:Perception feats]].
* [[Snooping]] increases perception by 3 for the purposes of finding secrets.
* [[Increased Perception]] veteran feat increases it by 2.

== Related items ==

=== Headwear ===
* {{Itemlink|Adaptive Goggles}} (+1 Perception on equip)
* {{Itemlink|Metal Helmet}}s (-1 Perception on equip)
* {{Itemlink|Aegis Sec-trooper Helmet}}{{expedition-inline}} (-1 Perception on equip)
* {{Itemlink|Praetorian Lawgiver}} (-1 Perception on equip)
* {{Itemlink|Gas Mask}} (-2 Perception on equip)

=== Suit ===
* {{Itemlink|Tchortist Noble Robe}} (-1 Perception on equip)
* {{Itemlink|Tchortist Rassophore Armor}} (-1 Perception on equip)
* {{Itemlink|Biohazard Suit}} (-2 Perception on equip)
* {{Itemlink|Fire Proximity Suit}} (-2 Perception on equip)
* {{Itemlink|Robe}} (-2 Perception on equip)
* {{Itemlink|Tchortist Robe}} (-2 Perception on equip)

=== Food ===
* {{Itemlink|All-in}} (temporarily +3 all base abilities)
* {{Itemlink|Mushroom Salad}} (temporary +1 Perception)
* {{Itemlink|Junkyard Surprise}} (temporary random base ability effect, can only decrease Perception)
* {{Itemlink|Clean Deal}} (temporary -1 Perception)
* {{Itemlink|Mushroom Brew}} (temporary -2 Perception)
* {{Itemlink|Kzozel}} {{expedition-inline}} (temporary -2 Perception)
* {{Itemlink|White Dude}} (temporarily -2 Perception)

=== Drugs ===
* {{Itemlink|Third Eye (drug)|Third Eye}}{{expedition-inline}} (temporary +3 Perception for the purpose of finding secrets)
* {{Itemlink|Bioluminous Marsh Honey}}{{expedition-inline}} (temporary +2 Perception)
* {{Itemlink|Supersoldier Drug (medicine)|Supersoldier Drug}} (temporary +2 Perception)
* {{Itemlink|The Juice}} (temporary +1 Perception)

== Perception checks ==
[[File:Tilemarker Perception.png|left]]

Discovering secret areas is based on [[Perception]] score alone, unlike detecting traps and stealthed characters, which is based on [[Detection]]. Discovering some secrets requires prior knowledge instead of Perception score.

In addition to secrets, [[Underrail: Expedition]] expansion added visible in-world Perception checks similar to [[Strength]], [[Dexterity]] and [[Agility]] checks.

=== Base game ===

{{incomplete list}}

{| class="sortable wikitable"
|-
! Location !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| Lower Caves, [[South Gate Outposts]], Area '''South outposts''', inside NW outpost ([[:File:Forlornstations1.png|Forlornstations1.png]])
| Trapdoor
| 6 Perception
| [[:File:ForlornStations4_1.png|connects]] the two south outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''South outposts''', inside NE outpost ([[:File:Forlornstations1.png|Forlornstations1.png]])
| Trapdoor
| 6 Perception
| [[:File:ForlornStations4_1.png|connects]] the two south outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''East outpost''', inside the outpost ([[:File:ForlornStations4.png|ForlornStations4.png]])
| Trapdoor
| 7 Perception
| [[:File:ForlornStations1_1.png|connects]] east and northwest outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''East outpost''', northeast tunnels ([[:File:ForlornStations4.png|ForlornStations4.png]])
| Trapdoor
| 8 Perception
| [[:File:ForlornStations1_1.png|connects]] east and northwest outposts
|-
| [[Under-passages]] area 1, near SGS ([[:File:lup-a1.png|lup-a1.png]])
| Door
| 7 Perception
| secret room along east wall, [[Strange Comm Device]] oddity
|-
| Lower Underrail, [[GMS compound level 1]] ([[:File:GammaCompound1.png|GammaCompound1.png]])
| Safe
| 7 Perception
| secret safe in room near southwest corner
|-
| Lower Underrail, [[GMS compound level 2]] ([[:File:GammaCompound2.png|GammaCompound2.png]])
| Secret passage
| 7 Perception
| secret room along east wall, [[Old Data Medium]] oddity
|-
| Lower Underrail, [[GMS compound level 3]] ([[:File:GammaCompound3.png|GammaCompound3.png]])
| First aid box
| ? Perception
| SW room, hidden under couch, medicine including an advanced health hypo
|-
| [[Lower Caves]], east from [[GMS compound level 3]] ([[:File:cv12.png|cv12.png]])
| Secret crawlspace
| 8 Perception
| leads to the back entrance of the raider [[:File:Cv14.png|base]]
|-
| [[Lower Caves]], raider [[:File:Cv14.png|base]]
| Adrenaline shot
| ? Perception
| under Page's bed
|-
| [[Lower Caves]] between Mushroom Cove and Junkyard ([[:File:jyt1.png|jyt1.png]])
| Underwater rock bridge
| 8 Perception
| leads to a small island
|-
| Lower Caves, [[Siphoner Pools]], northeast ([[:File:jyt3.png|jyt3.png]])
| Underwater rock bridge
| 8 Perception
| leads to the northeast corner of the cave
|-
| Lower Caves, [[Water Treatment Facility]]
| Plasma cell
| ? Perception
| under a table in the power room
|-
| Lower Caves, [[Water Treatment Facility]]
| Shotgun shells
| ? Perception
| on top of a locker in the SE room on the upper level
|-
| Lower Caves, [[Water Treatment Facility]]
| First-aid kit
| ? Perception
| in the SE room on the lower level, has antidotes
|-
| Lower Caves, [[Water Treatment Facility]]
| Deathstalker corpse with oddity
| ? Perception
| in a secret compartment in the ventilation system
|-
| Lower Caves, [[Water Treatment Facility]]
| Hidden vent shaft
| ? Perception
| along north wall on the lower level, leads to secluded room with loot
|-
| [[Silent Isle]], southeast ([[:File:si1.png|si1.png]])
| Underwater rock bridge
| 7 Perception
| leads to a small island with a corpse
|-
| Junkyard, Security control room of [[Depot A]] east area ([[:File:ojy2.png|ojy2.png]])
| Secret door
| 10 perception
| shortcut bypassing the turrets
|-
| [[Lower Underrail]] area 6, Lunatic camp ([[:File:lu-a6.png|lu-a6.png]])
| Hidden stash
| 8 Perception
| secret footlocker near rock pile
|-
| [[Upper Caves]], south of Milton's camp ([[:File:lux-a10.png|lux-a10.png]])
| Underwater rock bridge
| 7 Perception
| shortcut between the north and south bank of the river
|-
| [[Upper Caves]], ironhead camp, north of the Bunker ([[:File:Lux-b16.png|Lux-b16.png]])
| Hidden stash
| ? Perception
| NW corner of map, through the backside of the camp, a jumping bean and tabi boots
|-
| [[Upper Caves]], Synesthete/Formedicator camp, under the Oculus
| Hidden stash
| ? Perception
| in the rock next to the Synesthete, 293 charons
|-
| [[Upper Caves]], misty river north of Hecate caves entrance
| Hidden box
| ? Perception
| contains a luxury item
|-
| [[Upper Caves]], Lost Vault entrance ([[:File:Lux-b9.png|Lux-b9.png]])
| Hidden ventilation shaft
| ? Perception
| leads into the shack behind the trader
|-
| [[Upper Caves]], Lost Vault interior
| Hidden first-aid box
| ? Perception
| 2 antidotes and a health hypo
|-
| [[Upper Caves]], Lost Vault interior
| Hidden footlocker
| ? Perception
| in room along north wall, electronic component(s)
|-
| [[Upper Caves]], Lost Vault interior
| Hidden bag
| ? Perception
| in room along west wall, advanced repair kits & a lighter
|-
| [[Lower Caves]], south of [[Crossroad Caves]] ([[:File:cv2.png|cv2.png]])
| Trapdoor
| 8 Perception
| [[:File:Cv2 1.png|connects]] southwest and southeast corner, locked box with random psionic mentor
|-
| [[Lower Caves]], south of [[Crossroad Caves]] ([[:File:cv2.png|cv2.png]])
| Underwater rock bridge
| 7 Perception
| shortcut bypassing siphoners
|-
| Lower Caves, south of [[Camp Hathor]] ([[:File:cv19.png|cv19.png]])
| Underwater rock bridge
| 7 Perception
| shortcut bypassing rathound nest
|-
| Lower Caves, [[Rathound King Lair]] ([[:File:rkl2.png|rkl2.png]])
| Door
| Quest trigger
| shortcut leading outside if you offer to [[Kidnap Sarine|kidnap Sarine]] or [[Kill the Rathound King|negotiate a truce]] with Camp Hathor
|-
| Lower Caves, [[Rathound King Lair]], outside ([[:File:cv21.png|cv21.png]])
| Door
| Quest trigger
| shortcut leading to the lair if you offer to [[Kidnap Sarine|kidnap Sarine]] or [[Kill the Rathound King|negotiate a truce]] with Camp Hathor
|-
| Lower Underrail, [[Abandoned Warehouse]] ([[:File:aw1-1.png|aw1-1.png]])
| Secret crawlspace
| 7 Perception
| secret ventilation shaft section with a footlocker and a rathound
|-
| [[Rail Crossing]], behind bar ([[:File:rc1.png|rc1.png]])
| Secret door
| 7 Perception
| leads to [[Deacon]]'s shop
|-
| Rail Crossing, [[Buzzer's Shop]]'s ventilation shafts ([[:File:rc_shop 3.png|rc_shop 3.png]])
| Hidden Ventilation Shaft
| 7 Perception
| secret ventilation shaft section with [[Hardware Bug]]
|-
| Lower Underrail, [[Dude's vision|The warehouse from Dude's vision]] ([[:File:lu-b4.png|lu-b4.png]])
| Secret crawlspace
| Quest trigger
| leads to the lower level of the warehouse during Dude's quest
|-
| [[Free Drones Base]], east room
| Trapdoor
| 11 Perception
| can't be opened; handle breaks
|-
| [[Upper Caves]], north from the Hanging Rat bar ([[:File:lux-c2.png|lux-c2.png]])
| Hidden stash
| 11 Perception
| secret stash inside rock pillar (not visible on the linked map)
|-
| Foundry, Evelyn's home ([[:File:fo3.png|fo3.png]])
| Trapdoor
| 10 Perception
| [[:File:Fo3-tunnel.png|connects]] Evelyn's house and bunker
|-
| Foundry, Evelyn's home ([[:File:fo3.png|fo3.png]])
| Secret crawlspace
| Quest trigger
| leads to Evelyn's [[:File:Fo-bunker.png|bunker]] if a male player character [[Foundry murders|has a drink]] with her
|-
| [[Lower Underrail]], cave west of [[Foundry]] ([[:File:lu-b22x.png|lu-b22x.png]])
| Hidden stash
| 10 Perception
| secret stash inside rock pillar
|-
| Core City, SW middle level ([[:File:Cc17.png|Cc17.png]])
| Ladder
| 14 Perception
| leads to utility section electric coil area
|-
| Core City, utility section ([[:File:Cc_utility.png|Cc_utility.png]])
| Squeeze though gap in pipes
| ? Perception
| leads to Phreak's hideout
|-
| Core City, utility section steam area
| Junk pile
| ? Perception
| mechanical components (probably randomized), NW corridor
|-
| Core City, utility section steam area
| Plasma cell
| ? Perception
| hidden plasma cell, through the door east of the steam console, along the south wall
|-
| Core City, utility section electric coil area
| Bag
| ? Perception
| knife (probably randomized), SE room on 2nd floor
|-
| Core City, [[Drop Zone]] ([[:File:cc15.png|cc15.png]])
| Secret door
| Quest trigger or 6 Perception
| leads to Bogdan's [[:File:Cc15x.png|hideout]], can be found with perception or by learning about it from [[Kupusije]] during [[Find Bogdan]], or with perception after starting [[Sewers generator]]/[[Retrieve ICPD]]
|-
| Core City, inside one of [[Drop Zone]] buildings ([[:File:cc5_1.png|cc5_1.png]])
| Trapdoor
| 8 Perception
| leads to the basement
|-
| Core City, north [[Core City Sewers]] ([[:File:cc_s2.png|cc_s2.png]])
| Door
| 8 Perception
| leads to a secret room on the west side
|-
| Core City, northwest [[Core City Sewers]] ([[:File:cc_s6 2.png|cc_s6 2.png]])
| Switch
| Quest trigger
| opens door to Acid Hunters' hideout during the [[Look for Cornell]] quest
|-
| [[Upper Underrail]], east of [[Notus Living Block]] ([[:File:up3x.png|up3x.png]])
| Trapdoor
| 7 Perception
| [[:File:Up3x_1.png|connects]] trapdoor and a Lunatic base
|-
| [[Upper Underrail]], inside [[Panacea Lab]] ([[:File:plb.png|plb.png]])
| Switch
| 8 Perception
| opens door to the room in the northeast corner
|-
| [[Upper Underrail]], northeast corner ([[:File:Up7.png|Up7.png]])
| Ventilation Shaft
| ? Perception
| Connects inside of structure to outside, north of the barrel fire
|-
| [[Upper Underrail]], utility tower, first room past metal gate
| Ventilation Shaft
| ? Perception
| Ladder leading up, skips some floors
|-
| [[Institute of Tchort]], utility section 2, south room ([[:File:Tch-util2.png|Tch-util2.png]])
| Box
| ? Perception
| one aegis, three gizzard enzymes
|-
| [[Institute of Tchort]], utility section 3, northwest corner ([[:File:tch-util3.png|tch-util3.png]])
| Morphine shot on file cabinet
| ? Perception
| One morphine shot
|-
| [[Institute of Tchort]], utility section 3, northeast corner ([[:File:tch-util3.png|tch-util3.png]])
| Ventilation Shaft
| 8 Perception
| [[:File:Tch-vent.png|connects]] west wing and utility section
|-
| [[Institute of Tchort]], west wing, in coil spider room ([[:File:tch-ww2.png|tch-ww2.png]])
| Ventilation Shaft
| 7 Perception
| [[:File:Tch-vent.png|connects]] west wing and utility section
|-
| Institute of Tchort, [[Harpocrates Station]], north room ([[:File:tch_met.png|tch_met.png]])
| Secret crawlspace
| Quest trigger
| leads to the ventilation system during [[Track down Rassophore Nevil]]
|-
| Institute of Tchort, [[Upper Underrail Ventilation System]] ([[:File:tch_mv1.png|tch_mv1.png]])
| Secret crawlspace
| 8 Perception
| secret ventilation shaft section with a box
|-
| Institute of Tchort, [[Upper Underrail Ventilation System]], southwest room ([[:File:tch_mv1_2.png|tch_mv1_2.png]])
| Secret trapdoor
| 10 Perception
| leads to hidden [[:File:Tch_mv1_3.png|basement]]
|-
| [[Deep Caverns]], lake, northeast bank ([[:File:dc-lk.png|dc-lk.png]])
| Underwater rock bridge
| 7 Perception
| leads to a small island with hackable box
|-
| [[Deep Caverns]], lake, southwest islet ([[:File:dc-lk.png|dc-lk.png]])
| Sniper rifle
| 10 Perception
| reveals [[Black Arrow]] sniper rifle
|-
| Deep Caverns, [[Hollow Earth]] ([[:File:dc-la2.png|dc-la2.png]])
| Secret crawlspace
| 8 Perception
| secret entrance to the small building on the east
|-
| Deep Caverns, checkpoint between Caerus and warehouses ([[:File:dc-cp1.png|dc-cp1.png]])
| Underwater rock bridge
| 8 Perception
| leads to the east bank of the lake
|-
| Deep Caverns, [[Warehouse Block 2]], south toxic storage ([[:File:dc-wh3.png|dc-wh3.png]])
| Trapdoor
| 8 Perception
| leads to lower [[:File:Dc-wh3_1.png|level]], [[Psionic Mentor: Electrokinetic Imprint|Electrokinetic Imprint]] mentor
|-
| Deep Caverns, [[Caerus Residential]], northwest building, second floor ([[:File:dc-res2 2.png|dc-res2 2.png]])
| Ventilation Shaft
| 10 Perception
| leads to a [[:File:Dc-sc.png|cavern]] with [[Gunter Vasilica]], [[Psionic Mentor: Pseudo-spatial Projection|Pseudo-spatial Projection]] mentor, and [[Regenerative Mixture]]
|-
| Deep Caverns, [[Caerus Residential]], west apartment ([[:File:dc-res3.png|dc-res3.png]])
| Safe
| 6 Perception
| secret (empty) safe
|-
| Deep Caverns, [[Arke Power Station]], utility section toxic storage ([[:File:dc-pp_ut.png|dc-pp_ut.png]])
| Trapdoor
| 11 Perception
| [[:File:Dc-pp_ut_1.png|connects]] toxic storage and storage room, random psionic mentor
|-
| Deep Caverns, [[Arke Power Station]], utility section storage room ([[:File:dc-pp_ut.png|dc-pp_ut.png]])
| Trapdoor
| 10 Perception
| [[:File:Dc-pp_ut_1.png|connects]] toxic storage and storage room, random psionic mentor
|-
| Deep Caverns, [[Mushroom Forest|Deep Mushroom Forest]] ([[:File:dc-fs4.png|dc-fs4.png]])
| Secret tunnel
| 9 Perception
| leads to the northwest corner and a skeleton
|}

=== Expedition ===
{{incomplete list}}

{| class="sortable wikitable"
|-
! Location, Underrail !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| [[Abandoned Waterway Facility]], east zone || Hidden stash in rock pillar || ? Perception || exceptionally high-quality mutated-dog leather
|-
| [[The Rig]], room #2 || [[Note (The Rig)]] || 5 Perception || under the bed
|-
| [[Chancer's Bay]], NE map || Hole through wall of shack || 10 Perception || biohazard boots, mutants
|-
| [[Isaac's River]], northernmost map || Hidden stash || 10 Perception || stash in north wall of cave
|-
| [[Core City Docks]], empty room next to Ray's shop || Vent in north wall || ? || leads into Ray's shop, dying burglar
|-
| [[Dude's House - Core City]] || Cracked floor panel/wall safe || ? || key to wall safe/the safe itself
|-
| [[Dude's House - Caves]] || Footlocker under bed || 9 Perception || psionic mentor
|-
| [[Grey Army Base]], two rooms east of the rift || Secret trapdoor || 8 Perception || electronic components
|-
| [[Grey Army Base]], 2nd floor || Wall safe || 9 Perception || secret safe in north wall of northwest room
|-
| [[Grey Army Base]], 2nd floor || Secret crawlspace || 9 Perception || Connects northern and southern parts of the ventilation system
|}

{{incomplete list}}

{| class="sortable wikitable"
|-
! Location, Black Sea !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| [[Black Sea]] ([[E4]]), north side of island || Entrance to cave || 11 Perception || entrance to pirate prison sewer, boss hermit crab
|-
| [[Siphoner Pools (Black Sea)]] || Underwater rock bridge || 7 Perception || leads to a lingula plant and a random treasure "crevice"
|-
| [[Siphoner Pools (Black Sea)]], west chamber || Buried box || 11 Perception || SGS credits, Charons, UN dollars
|-
| [[Black Sea]] ([[C8]]), hopper island cave, north wall, west side || Hidden stash || 9 Perception || secret stash in cave wall, quiver belt and special bolts
|-
| [[Black Sea]] ([[A10]]), Yngwar's cave island, hidden walkway in water on east side|| Hidden stash || ? Perception || secret stash in cave wall, coagulation shot(s) and rusting acid chemical ammo
|-
| [[Mutie Refuge]], crane room || Hidden vent shaft || 7 Perception || secret vent shaft through wall into crane room
|-
| [[West Storage Depot]], lvl 3 by the elevator || Hidden vent shaft || 8 Perception || secret vent shaft to blocked room
|-
| [[Crimson Meadow Horticulture Center]] lower floor, west section, north side || Hidden vent shaft || 11 Perception || secret vent shaft through wall
|-
| [[Black Sea]] ([[I1]]), outside the Health Center, SE corner || Hidden hole through wall || 10 Perception || secret passage to hidden room
|-
| [[Black Sea]] ([[I2]]), tower north of Health Center, 2nd floor || Hidden corpse || 9 Perception || corpse with loot (can be looted without detection)
|-
| [[Nexus of Technology]], level 1, SE room || Hidden wall safe || 9 Perception || loot
|-
| [[Port Crag]], east building || Hidden pipe tunnel || 9 Perception || Crawl through to west building, 2nd floor (agility 8; it is from the other direction)
|-
| [[Fetid Marsh]], east side of [[K5]]/west side of [[L5]] || Hidden map exit(s) || 7 Perception || secret camp with [[Signed Arena Ticket]] Oddity and [[Slimy Tablet Computer]]
|-
| [[Fetid Marsh]], SW corner of [[K4]] || Hidden pool jumps || 12 Perception || secret platforms for easier jumping across leper pool
|-
| Map M7 (two maps east of the Nexus), NW corner || Hidden passages || 9 Perception || secret passages to/from hidden room, shortcut past creepers
|}

{{Base abilities navbox}}
[[Category: Base Abilities]]

Perception

2022-02-13T13:43:09Z

Harperfan7: /* Base game */

{{Quote
| Perception represents character's ability to discern objects from far away as well as to notice hidden things in their vicinity. It helps the character to use ranged weapons more effectively, as well as detect hidden objects, passages and creatures.
| In-game description
}}

== Details ==
'''Perception''' determines your character's overall awareness and effectiveness with ranged weapons. It also affects your character's chance to detect hidden passages, objects or stealthed creatures and NPCs. It does not increase your vision or visible range. Perception does not directly affect your chance to hit, but rather increases your ranged weapon skills, which in turn increases your chance to hit with ranged weapons. Melee weapon hit rate is unchanged but increased with melee skill (through strength or dexterity). No items require perception to be used or equipped.

High perception score is important for characters who wish to use ranged weapons or find traps, stealthed enemies and secrets.

{{Synergies|
* [[Guns]]
* [[Crossbows]]
|
* [[Detection]]
* Finding secrets (uses perception score instead of detection)
}}

== Related feats ==
See [[:Category:Perception feats]].
* [[Snooping]] increases perception by 3 for the purposes of finding secrets.
* [[Increased Perception]] veteran feat increases it by 2.

== Related items ==

=== Headwear ===
* {{Itemlink|Adaptive Goggles}} (+1 Perception on equip)
* {{Itemlink|Metal Helmet}}s (-1 Perception on equip)
* {{Itemlink|Aegis Sec-trooper Helmet}}{{expedition-inline}} (-1 Perception on equip)
* {{Itemlink|Praetorian Lawgiver}} (-1 Perception on equip)
* {{Itemlink|Gas Mask}} (-2 Perception on equip)

=== Suit ===
* {{Itemlink|Tchortist Noble Robe}} (-1 Perception on equip)
* {{Itemlink|Tchortist Rassophore Armor}} (-1 Perception on equip)
* {{Itemlink|Biohazard Suit}} (-2 Perception on equip)
* {{Itemlink|Fire Proximity Suit}} (-2 Perception on equip)
* {{Itemlink|Robe}} (-2 Perception on equip)
* {{Itemlink|Tchortist Robe}} (-2 Perception on equip)

=== Food ===
* {{Itemlink|All-in}} (temporarily +3 all base abilities)
* {{Itemlink|Mushroom Salad}} (temporary +1 Perception)
* {{Itemlink|Junkyard Surprise}} (temporary random base ability effect, can only decrease Perception)
* {{Itemlink|Clean Deal}} (temporary -1 Perception)
* {{Itemlink|Mushroom Brew}} (temporary -2 Perception)
* {{Itemlink|Kzozel}} {{expedition-inline}} (temporary -2 Perception)
* {{Itemlink|White Dude}} (temporarily -2 Perception)

=== Drugs ===
* {{Itemlink|Third Eye (drug)|Third Eye}}{{expedition-inline}} (temporary +3 Perception for the purpose of finding secrets)
* {{Itemlink|Bioluminous Marsh Honey}}{{expedition-inline}} (temporary +2 Perception)
* {{Itemlink|Supersoldier Drug (medicine)|Supersoldier Drug}} (temporary +2 Perception)
* {{Itemlink|The Juice}} (temporary +1 Perception)

== Perception checks ==
[[File:Tilemarker Perception.png|left]]

Discovering secret areas is based on [[Perception]] score alone, unlike detecting traps and stealthed characters, which is based on [[Detection]]. Discovering some secrets requires prior knowledge instead of Perception score.

In addition to secrets, [[Underrail: Expedition]] expansion added visible in-world Perception checks similar to [[Strength]], [[Dexterity]] and [[Agility]] checks.

=== Base game ===

{{incomplete list}}

{| class="sortable wikitable"
|-
! Location !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| Lower Caves, [[South Gate Outposts]], Area '''South outposts''', inside NW outpost ([[:File:Forlornstations1.png|Forlornstations1.png]])
| Trapdoor
| 6 Perception
| [[:File:ForlornStations4_1.png|connects]] the two south outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''South outposts''', inside NE outpost ([[:File:Forlornstations1.png|Forlornstations1.png]])
| Trapdoor
| 6 Perception
| [[:File:ForlornStations4_1.png|connects]] the two south outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''East outpost''', inside the outpost ([[:File:ForlornStations4.png|ForlornStations4.png]])
| Trapdoor
| 7 Perception
| [[:File:ForlornStations1_1.png|connects]] east and northwest outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''East outpost''', northeast tunnels ([[:File:ForlornStations4.png|ForlornStations4.png]])
| Trapdoor
| 8 Perception
| [[:File:ForlornStations1_1.png|connects]] east and northwest outposts
|-
| [[Under-passages]] area 1, near SGS ([[:File:lup-a1.png|lup-a1.png]])
| Door
| 7 Perception
| secret room along east wall, [[Strange Comm Device]] oddity
|-
| Lower Underrail, [[GMS compound level 1]] ([[:File:GammaCompound1.png|GammaCompound1.png]])
| Safe
| 7 Perception
| secret safe in room near southwest corner
|-
| Lower Underrail, [[GMS compound level 2]] ([[:File:GammaCompound2.png|GammaCompound2.png]])
| Secret passage
| 7 Perception
| secret room along east wall, [[Old Data Medium]] oddity
|-
| Lower Underrail, [[GMS compound level 3]] ([[:File:GammaCompound3.png|GammaCompound3.png]])
| First aid box
| ? Perception
| SW room, hidden under couch, medicine including an advanced health hypo
|-
| [[Lower Caves]], east from [[GMS compound level 3]] ([[:File:cv12.png|cv12.png]])
| Secret crawlspace
| 8 Perception
| leads to the back entrance of the raider [[:File:Cv14.png|base]]
|-
| [[Lower Caves]], raider [[:File:Cv14.png|base]]
| Adrenaline shot
| ? Perception
| under Page's bed
|-
| [[Lower Caves]] between Mushroom Cove and Junkyard ([[:File:jyt1.png|jyt1.png]])
| Underwater rock bridge
| 8 Perception
| leads to a small island
|-
| Lower Caves, [[Siphoner Pools]], northeast ([[:File:jyt3.png|jyt3.png]])
| Underwater rock bridge
| 8 Perception
| leads to the northeast corner of the cave
|-
| Lower Caves, [[Water Treatment Facility]]
| Plasma cell
| ? Perception
| under a table in the power room
|-
| Lower Caves, [[Water Treatment Facility]]
| Shotgun shells
| ? Perception
| on top of a locker in the SE room on the upper level
|-
| Lower Caves, [[Water Treatment Facility]]
| First-aid kit
| ? Perception
| in the SE room on the lower level, has antidotes
|-
| Lower Caves, [[Water Treatment Facility]]
| Deathstalker corpse with oddity
| ? Perception
| in a secret compartment in the ventilation system
|-
| Lower Caves, [[Water Treatment Facility]]
| Hidden vent shaft
| ? Perception
| along north wall on the lower level, leads to secluded room with loot
|-
| [[Silent Isle]], southeast ([[:File:si1.png|si1.png]])
| Underwater rock bridge
| 7 Perception
| leads to a small island with a corpse
|-
| Junkyard, Security control room of [[Depot A]] east area ([[:File:ojy2.png|ojy2.png]])
| Secret door
| 10 perception
| shortcut bypassing the turrets
|-
| [[Lower Underrail]] area 6, Lunatic camp ([[:File:lu-a6.png|lu-a6.png]])
| Hidden stash
| 8 Perception
| secret footlocker near rock pile
|-
| [[Upper Caves]], south of Milton's camp ([[:File:lux-a10.png|lux-a10.png]])
| Underwater rock bridge
| 7 Perception
| shortcut between the north and south bank of the river
|-
| [[Upper Caves]], ironhead camp, north of the Bunker ([[:File:Lux-b16.png|Lux-b16.png]])
| Hidden stash
| ? Perception
| NW corner of map, through the backside of the camp, a jumping bean and tabi boots
|-
| [[Upper Caves]], Synesthete/Formedicator camp, under the Oculus
| Hidden stash
| ? Perception
| in the rock next to the Synesthete, 293 charons
|-
| [[Upper Caves]], misty river north of Hecate caves entrance
| Hidden box
| ? Perception
| contains a luxury item
|-
| [[Upper Caves]], Lost Vault entrance ([[:File:Lux-b9.png|Lux-b9.png]])
| Hidden ventilation shaft
| ? Perception
| leads into the shack behind the trader
|-
| [[Upper Caves]], Lost Vault interior
| Hidden first-aid box
| ? Perception
| 2 antidotes and a health hypo
|-
| [[Upper Caves]], Lost Vault interior
| Hidden footlocker
| ? Perception
| in room along north wall, electronic component(s)
|-
| [[Upper Caves]], Lost Vault interior
| Hidden bag
| ? Perception
| in room along west wall, advanced repair kits & a lighter
|-
| [[Lower Caves]], south of [[Crossroad Caves]] ([[:File:cv2.png|cv2.png]])
| Trapdoor
| 8 Perception
| [[:File:Cv2 1.png|connects]] southwest and southeast corner, locked box with random psionic mentor
|-
| [[Lower Caves]], south of [[Crossroad Caves]] ([[:File:cv2.png|cv2.png]])
| Underwater rock bridge
| 7 Perception
| shortcut bypassing siphoners
|-
| Lower Caves, south of [[Camp Hathor]] ([[:File:cv19.png|cv19.png]])
| Underwater rock bridge
| 7 Perception
| shortcut bypassing rathound nest
|-
| Lower Caves, [[Rathound King Lair]] ([[:File:rkl2.png|rkl2.png]])
| Door
| Quest trigger
| shortcut leading outside if you offer to [[Kidnap Sarine|kidnap Sarine]] or [[Kill the Rathound King|negotiate a truce]] with Camp Hathor
|-
| Lower Caves, [[Rathound King Lair]], outside ([[:File:cv21.png|cv21.png]])
| Door
| Quest trigger
| shortcut leading to the lair if you offer to [[Kidnap Sarine|kidnap Sarine]] or [[Kill the Rathound King|negotiate a truce]] with Camp Hathor
|-
| Lower Underrail, [[Abandoned Warehouse]] ([[:File:aw1-1.png|aw1-1.png]])
| Secret crawlspace
| 7 Perception
| secret ventilation shaft section with a footlocker and a rathound
|-
| [[Rail Crossing]], behind bar ([[:File:rc1.png|rc1.png]])
| Secret door
| 7 Perception
| leads to [[Deacon]]'s shop
|-
| Rail Crossing, [[Buzzer's Shop]]'s ventilation shafts ([[:File:rc_shop 3.png|rc_shop 3.png]])
| Hidden Ventilation Shaft
| 7 Perception
| secret ventilation shaft section with [[Hardware Bug]]
|-
| Lower Underrail, [[Dude's vision|The warehouse from Dude's vision]] ([[:File:lu-b4.png|lu-b4.png]])
| Secret crawlspace
| Quest trigger
| leads to the lower level of the warehouse during Dude's quest
|-
| [[Free Drones Base]], east room
| Trapdoor
| 11 Perception
| can't be opened; handle breaks
|-
| [[Upper Caves]], north from the Hanging Rat bar ([[:File:lux-c2.png|lux-c2.png]])
| Hidden stash
| 11 Perception
| secret stash inside rock pillar (not visible on the linked map)
|-
| Foundry, Evelyn's home ([[:File:fo3.png|fo3.png]])
| Trapdoor
| 10 Perception
| [[:File:Fo3-tunnel.png|connects]] Evelyn's house and bunker
|-
| Foundry, Evelyn's home ([[:File:fo3.png|fo3.png]])
| Secret crawlspace
| Quest trigger
| leads to Evelyn's [[:File:Fo-bunker.png|bunker]] if a male player character [[Foundry murders|has a drink]] with her
|-
| [[Lower Underrail]], cave west of [[Foundry]] ([[:File:lu-b22x.png|lu-b22x.png]])
| Hidden stash
| 10 Perception
| secret stash inside rock pillar
|-
| Core City, SW middle level ([[:File:Cc17.png|Cc17.png]])
| Ladder
| 14 Perception
| leads to utility section electric coil area
|-
| Core City, utility section ([[:File:Cc_utility.png|Cc_utility.png]])
| Squeeze though gap in pipes
| ? Perception
| leads to Phreak's hideout
|-
| Core City, utility section steam area
| Junk pile
| ? Perception
| mechanical components (probably randomized), NW corridor
|-
| Core City, utility section steam area
| Plasma cell
| ? Perception
| hidden plasma cell, through the door east of the steam console, along the south wall
|-
| Core City, utility section electric coil area
| Bag
| ? Perception
| knife (probably randomized), SE room on 2nd floor
|-
| Core City, [[Drop Zone]] ([[:File:cc15.png|cc15.png]])
| Secret door
| Quest trigger or 6 Perception
| leads to Bogdan's [[:File:Cc15x.png|hideout]], can be found with perception or by learning about it from [[Kupusije]] during [[Find Bogdan]], or with perception after starting [[Sewers generator]]/[[Retrieve ICPD]]
|-
| Core City, inside one of [[Drop Zone]] buildings ([[:File:cc5_1.png|cc5_1.png]])
| Trapdoor
| 8 Perception
| leads to the basement
|-
| Core City, north [[Core City Sewers]] ([[:File:cc_s2.png|cc_s2.png]])
| Door
| 8 Perception
| leads to a secret room on the west side
|-
| Core City, northwest [[Core City Sewers]] ([[:File:cc_s6 2.png|cc_s6 2.png]])
| Switch
| Quest trigger
| opens door to Acid Hunters' hideout during the [[Look for Cornell]] quest
|-
| [[Upper Underrail]], east of [[Notus Living Block]] ([[:File:up3x.png|up3x.png]])
| Trapdoor
| 7 Perception
| [[:File:Up3x_1.png|connects]] trapdoor and a Lunatic base
|-
| [[Upper Underrail]], inside [[Panacea Lab]] ([[:File:plb.png|plb.png]])
| Switch
| 8 Perception
| opens door to the room in the northeast corner
|-
| [[Upper Underrail]], northeast corner ([[:File:Up7.png|Up7.png]])
| Ventilation Shaft
| ? Perception
| Connects inside of structure to outside, north of the barrel fire
|-
| [[Upper Underrail]], utility tower, first room past metal gate
| Ventilation Shaft
| ? Perception
| Ladder leading up, skips some floors
|-
| [[Institute of Tchort]], utility section, northeast corner ([[:File:tch-util3.png|tch-util3.png]])
| Ventilation Shaft
| 8 Perception
| [[:File:Tch-vent.png|connects]] west wing and utility section
|-
| [[Institute of Tchort]], west wing, in coil spider room ([[:File:tch-ww2.png|tch-ww2.png]])
| Ventilation Shaft
| 7 Perception
| [[:File:Tch-vent.png|connects]] west wing and utility section
|-
| Institute of Tchort, [[Harpocrates Station]], north room ([[:File:tch_met.png|tch_met.png]])
| Secret crawlspace
| Quest trigger
| leads to the ventilation system during [[Track down Rassophore Nevil]]
|-
| Institute of Tchort, [[Upper Underrail Ventilation System]] ([[:File:tch_mv1.png|tch_mv1.png]])
| Secret crawlspace
| 8 Perception
| secret ventilation shaft section with a box
|-
| Institute of Tchort, [[Upper Underrail Ventilation System]], southwest room ([[:File:tch_mv1_2.png|tch_mv1_2.png]])
| Secret trapdoor
| 10 Perception
| leads to hidden [[:File:Tch_mv1_3.png|basement]]
|-
| [[Deep Caverns]], lake, northeast bank ([[:File:dc-lk.png|dc-lk.png]])
| Underwater rock bridge
| 7 Perception
| leads to a small island with hackable box
|-
| [[Deep Caverns]], lake, southwest islet ([[:File:dc-lk.png|dc-lk.png]])
| Sniper rifle
| 10 Perception
| reveals [[Black Arrow]] sniper rifle
|-
| Deep Caverns, [[Hollow Earth]] ([[:File:dc-la2.png|dc-la2.png]])
| Secret crawlspace
| 8 Perception
| secret entrance to the small building on the east
|-
| Deep Caverns, checkpoint between Caerus and warehouses ([[:File:dc-cp1.png|dc-cp1.png]])
| Underwater rock bridge
| 8 Perception
| leads to the east bank of the lake
|-
| Deep Caverns, [[Warehouse Block 2]], south toxic storage ([[:File:dc-wh3.png|dc-wh3.png]])
| Trapdoor
| 8 Perception
| leads to lower [[:File:Dc-wh3_1.png|level]], [[Psionic Mentor: Electrokinetic Imprint|Electrokinetic Imprint]] mentor
|-
| Deep Caverns, [[Caerus Residential]], northwest building, second floor ([[:File:dc-res2 2.png|dc-res2 2.png]])
| Ventilation Shaft
| 10 Perception
| leads to a [[:File:Dc-sc.png|cavern]] with [[Gunter Vasilica]], [[Psionic Mentor: Pseudo-spatial Projection|Pseudo-spatial Projection]] mentor, and [[Regenerative Mixture]]
|-
| Deep Caverns, [[Caerus Residential]], west apartment ([[:File:dc-res3.png|dc-res3.png]])
| Safe
| 6 Perception
| secret (empty) safe
|-
| Deep Caverns, [[Arke Power Station]], utility section toxic storage ([[:File:dc-pp_ut.png|dc-pp_ut.png]])
| Trapdoor
| 11 Perception
| [[:File:Dc-pp_ut_1.png|connects]] toxic storage and storage room, random psionic mentor
|-
| Deep Caverns, [[Arke Power Station]], utility section storage room ([[:File:dc-pp_ut.png|dc-pp_ut.png]])
| Trapdoor
| 10 Perception
| [[:File:Dc-pp_ut_1.png|connects]] toxic storage and storage room, random psionic mentor
|-
| Deep Caverns, [[Mushroom Forest|Deep Mushroom Forest]] ([[:File:dc-fs4.png|dc-fs4.png]])
| Secret tunnel
| 9 Perception
| leads to the northwest corner and a skeleton
|}

=== Expedition ===
{{incomplete list}}

{| class="sortable wikitable"
|-
! Location, Underrail !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| [[Abandoned Waterway Facility]], east zone || Hidden stash in rock pillar || ? Perception || exceptionally high-quality mutated-dog leather
|-
| [[The Rig]], room #2 || [[Note (The Rig)]] || 5 Perception || under the bed
|-
| [[Chancer's Bay]], NE map || Hole through wall of shack || 10 Perception || biohazard boots, mutants
|-
| [[Isaac's River]], northernmost map || Hidden stash || 10 Perception || stash in north wall of cave
|-
| [[Core City Docks]], empty room next to Ray's shop || Vent in north wall || ? || leads into Ray's shop, dying burglar
|-
| [[Dude's House - Core City]] || Cracked floor panel/wall safe || ? || key to wall safe/the safe itself
|-
| [[Dude's House - Caves]] || Footlocker under bed || 9 Perception || psionic mentor
|-
| [[Grey Army Base]], two rooms east of the rift || Secret trapdoor || 8 Perception || electronic components
|-
| [[Grey Army Base]], 2nd floor || Wall safe || 9 Perception || secret safe in north wall of northwest room
|-
| [[Grey Army Base]], 2nd floor || Secret crawlspace || 9 Perception || Connects northern and southern parts of the ventilation system
|}

{{incomplete list}}

{| class="sortable wikitable"
|-
! Location, Black Sea !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| [[Black Sea]] ([[E4]]), north side of island || Entrance to cave || 11 Perception || entrance to pirate prison sewer, boss hermit crab
|-
| [[Siphoner Pools (Black Sea)]] || Underwater rock bridge || 7 Perception || leads to a lingula plant and a random treasure "crevice"
|-
| [[Siphoner Pools (Black Sea)]], west chamber || Buried box || 11 Perception || SGS credits, Charons, UN dollars
|-
| [[Black Sea]] ([[C8]]), hopper island cave, north wall, west side || Hidden stash || 9 Perception || secret stash in cave wall, quiver belt and special bolts
|-
| [[Black Sea]] ([[A10]]), Yngwar's cave island, hidden walkway in water on east side|| Hidden stash || ? Perception || secret stash in cave wall, coagulation shot(s) and rusting acid chemical ammo
|-
| [[Mutie Refuge]], crane room || Hidden vent shaft || 7 Perception || secret vent shaft through wall into crane room
|-
| [[West Storage Depot]], lvl 3 by the elevator || Hidden vent shaft || 8 Perception || secret vent shaft to blocked room
|-
| [[Crimson Meadow Horticulture Center]] lower floor, west section, north side || Hidden vent shaft || 11 Perception || secret vent shaft through wall
|-
| [[Black Sea]] ([[I1]]), outside the Health Center, SE corner || Hidden hole through wall || 10 Perception || secret passage to hidden room
|-
| [[Black Sea]] ([[I2]]), tower north of Health Center, 2nd floor || Hidden corpse || 9 Perception || corpse with loot (can be looted without detection)
|-
| [[Nexus of Technology]], level 1, SE room || Hidden wall safe || 9 Perception || loot
|-
| [[Port Crag]], east building || Hidden pipe tunnel || 9 Perception || Crawl through to west building, 2nd floor (agility 8; it is from the other direction)
|-
| [[Fetid Marsh]], east side of [[K5]]/west side of [[L5]] || Hidden map exit(s) || 7 Perception || secret camp with [[Signed Arena Ticket]] Oddity and [[Slimy Tablet Computer]]
|-
| [[Fetid Marsh]], SW corner of [[K4]] || Hidden pool jumps || 12 Perception || secret platforms for easier jumping across leper pool
|-
| Map M7 (two maps east of the Nexus), NW corner || Hidden passages || 9 Perception || secret passages to/from hidden room, shortcut past creepers
|}

{{Base abilities navbox}}
[[Category: Base Abilities]]

Perception

2022-02-13T09:03:14Z

Harperfan7: /* Base game */

{{Quote
| Perception represents character's ability to discern objects from far away as well as to notice hidden things in their vicinity. It helps the character to use ranged weapons more effectively, as well as detect hidden objects, passages and creatures.
| In-game description
}}

== Details ==
'''Perception''' determines your character's overall awareness and effectiveness with ranged weapons. It also affects your character's chance to detect hidden passages, objects or stealthed creatures and NPCs. It does not increase your vision or visible range. Perception does not directly affect your chance to hit, but rather increases your ranged weapon skills, which in turn increases your chance to hit with ranged weapons. Melee weapon hit rate is unchanged but increased with melee skill (through strength or dexterity). No items require perception to be used or equipped.

High perception score is important for characters who wish to use ranged weapons or find traps, stealthed enemies and secrets.

{{Synergies|
* [[Guns]]
* [[Crossbows]]
|
* [[Detection]]
* Finding secrets (uses perception score instead of detection)
}}

== Related feats ==
See [[:Category:Perception feats]].
* [[Snooping]] increases perception by 3 for the purposes of finding secrets.
* [[Increased Perception]] veteran feat increases it by 2.

== Related items ==

=== Headwear ===
* {{Itemlink|Adaptive Goggles}} (+1 Perception on equip)
* {{Itemlink|Metal Helmet}}s (-1 Perception on equip)
* {{Itemlink|Aegis Sec-trooper Helmet}}{{expedition-inline}} (-1 Perception on equip)
* {{Itemlink|Praetorian Lawgiver}} (-1 Perception on equip)
* {{Itemlink|Gas Mask}} (-2 Perception on equip)

=== Suit ===
* {{Itemlink|Tchortist Noble Robe}} (-1 Perception on equip)
* {{Itemlink|Tchortist Rassophore Armor}} (-1 Perception on equip)
* {{Itemlink|Biohazard Suit}} (-2 Perception on equip)
* {{Itemlink|Fire Proximity Suit}} (-2 Perception on equip)
* {{Itemlink|Robe}} (-2 Perception on equip)
* {{Itemlink|Tchortist Robe}} (-2 Perception on equip)

=== Food ===
* {{Itemlink|All-in}} (temporarily +3 all base abilities)
* {{Itemlink|Mushroom Salad}} (temporary +1 Perception)
* {{Itemlink|Junkyard Surprise}} (temporary random base ability effect, can only decrease Perception)
* {{Itemlink|Clean Deal}} (temporary -1 Perception)
* {{Itemlink|Mushroom Brew}} (temporary -2 Perception)
* {{Itemlink|Kzozel}} {{expedition-inline}} (temporary -2 Perception)
* {{Itemlink|White Dude}} (temporarily -2 Perception)

=== Drugs ===
* {{Itemlink|Third Eye (drug)|Third Eye}}{{expedition-inline}} (temporary +3 Perception for the purpose of finding secrets)
* {{Itemlink|Bioluminous Marsh Honey}}{{expedition-inline}} (temporary +2 Perception)
* {{Itemlink|Supersoldier Drug (medicine)|Supersoldier Drug}} (temporary +2 Perception)
* {{Itemlink|The Juice}} (temporary +1 Perception)

== Perception checks ==
[[File:Tilemarker Perception.png|left]]

Discovering secret areas is based on [[Perception]] score alone, unlike detecting traps and stealthed characters, which is based on [[Detection]]. Discovering some secrets requires prior knowledge instead of Perception score.

In addition to secrets, [[Underrail: Expedition]] expansion added visible in-world Perception checks similar to [[Strength]], [[Dexterity]] and [[Agility]] checks.

=== Base game ===

{{incomplete list}}

{| class="sortable wikitable"
|-
! Location !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| Lower Caves, [[South Gate Outposts]], Area '''South outposts''', inside NW outpost ([[:File:Forlornstations1.png|Forlornstations1.png]])
| Trapdoor
| 6 Perception
| [[:File:ForlornStations4_1.png|connects]] the two south outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''South outposts''', inside NE outpost ([[:File:Forlornstations1.png|Forlornstations1.png]])
| Trapdoor
| 6 Perception
| [[:File:ForlornStations4_1.png|connects]] the two south outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''East outpost''', inside the outpost ([[:File:ForlornStations4.png|ForlornStations4.png]])
| Trapdoor
| 7 Perception
| [[:File:ForlornStations1_1.png|connects]] east and northwest outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''East outpost''', northeast tunnels ([[:File:ForlornStations4.png|ForlornStations4.png]])
| Trapdoor
| 8 Perception
| [[:File:ForlornStations1_1.png|connects]] east and northwest outposts
|-
| [[Under-passages]] area 1, near SGS ([[:File:lup-a1.png|lup-a1.png]])
| Door
| 7 Perception
| secret room along east wall, [[Strange Comm Device]] oddity
|-
| Lower Underrail, [[GMS compound level 1]] ([[:File:GammaCompound1.png|GammaCompound1.png]])
| Safe
| 7 Perception
| secret safe in room near southwest corner
|-
| Lower Underrail, [[GMS compound level 2]] ([[:File:GammaCompound2.png|GammaCompound2.png]])
| Secret passage
| 7 Perception
| secret room along east wall, [[Old Data Medium]] oddity
|-
| Lower Underrail, [[GMS compound level 3]] ([[:File:GammaCompound3.png|GammaCompound3.png]])
| First aid box
| ? Perception
| SW room, hidden under couch, medicine including an advanced health hypo
|-
| [[Lower Caves]], east from [[GMS compound level 3]] ([[:File:cv12.png|cv12.png]])
| Secret crawlspace
| 8 Perception
| leads to the back entrance of the raider [[:File:Cv14.png|base]]
|-
| [[Lower Caves]], raider [[:File:Cv14.png|base]]
| Adrenaline shot
| ? Perception
| under Page's bed
|-
| [[Lower Caves]] between Mushroom Cove and Junkyard ([[:File:jyt1.png|jyt1.png]])
| Underwater rock bridge
| 8 Perception
| leads to a small island
|-
| Lower Caves, [[Siphoner Pools]], northeast ([[:File:jyt3.png|jyt3.png]])
| Underwater rock bridge
| 8 Perception
| leads to the northeast corner of the cave
|-
| Lower Caves, [[Water Treatment Facility]]
| Plasma cell
| ? Perception
| under a table in the power room
|-
| Lower Caves, [[Water Treatment Facility]]
| Shotgun shells
| ? Perception
| on top of a locker in the SE room on the upper level
|-
| Lower Caves, [[Water Treatment Facility]]
| First-aid kit
| ? Perception
| in the SE room on the lower level, has antidotes
|-
| Lower Caves, [[Water Treatment Facility]]
| Deathstalker corpse with oddity
| ? Perception
| in a secret compartment in the ventilation system
|-
| Lower Caves, [[Water Treatment Facility]]
| Hidden vent shaft
| ? Perception
| along north wall on the lower level, leads to secluded room with loot
|-
| [[Silent Isle]], southeast ([[:File:si1.png|si1.png]])
| Underwater rock bridge
| 7 Perception
| leads to a small island with a corpse
|-
| Junkyard, Security control room of [[Depot A]] east area ([[:File:ojy2.png|ojy2.png]])
| Secret door
| 10 perception
| shortcut bypassing the turrets
|-
| [[Lower Underrail]] area 6, Lunatic camp ([[:File:lu-a6.png|lu-a6.png]])
| Hidden stash
| 8 Perception
| secret footlocker near rock pile
|-
| [[Upper Caves]], south of Milton's camp ([[:File:lux-a10.png|lux-a10.png]])
| Underwater rock bridge
| 7 Perception
| shortcut between the north and south bank of the river
|-
| [[Upper Caves]], ironhead camp, north of the Bunker ([[:File:Lux-b16.png|Lux-b16.png]])
| Hidden stash
| ? Perception
| NW corner of map, through the backside of the camp, a jumping bean and tabi boots
|-
| [[Upper Caves]], Synesthete/Formedicator camp, under the Oculus
| Hidden stash
| ? Perception
| in the rock next to the Synesthete, 293 charons
|-
| [[Upper Caves]], misty river north of Hecate caves entrance
| Hidden box
| ? Perception
| contains a luxury item
|-
| [[Upper Caves]], Lost Vault entrance ([[:File:Lux-b9.png|Lux-b9.png]])
| Hidden ventilation shaft
| ? Perception
| leads into the shack behind the trader
|-
| [[Upper Caves]], Lost Vault interior
| Hidden first-aid box
| ? Perception
| 2 antidotes and a health hypo
|-
| [[Upper Caves]], Lost Vault interior
| Hidden footlocker
| ? Perception
| in room along north wall, electronic component(s)
|-
| [[Upper Caves]], Lost Vault interior
| Hidden bag
| ? Perception
| in room along west wall, advanced repair kits & a lighter
|-
| [[Lower Caves]], south of [[Crossroad Caves]] ([[:File:cv2.png|cv2.png]])
| Trapdoor
| 8 Perception
| [[:File:Cv2 1.png|connects]] southwest and southeast corner, locked box with random psionic mentor
|-
| [[Lower Caves]], south of [[Crossroad Caves]] ([[:File:cv2.png|cv2.png]])
| Underwater rock bridge
| 7 Perception
| shortcut bypassing siphoners
|-
| Lower Caves, south of [[Camp Hathor]] ([[:File:cv19.png|cv19.png]])
| Underwater rock bridge
| 7 Perception
| shortcut bypassing rathound nest
|-
| Lower Caves, [[Rathound King Lair]] ([[:File:rkl2.png|rkl2.png]])
| Door
| Quest trigger
| shortcut leading outside if you offer to [[Kidnap Sarine|kidnap Sarine]] or [[Kill the Rathound King|negotiate a truce]] with Camp Hathor
|-
| Lower Caves, [[Rathound King Lair]], outside ([[:File:cv21.png|cv21.png]])
| Door
| Quest trigger
| shortcut leading to the lair if you offer to [[Kidnap Sarine|kidnap Sarine]] or [[Kill the Rathound King|negotiate a truce]] with Camp Hathor
|-
| Lower Underrail, [[Abandoned Warehouse]] ([[:File:aw1-1.png|aw1-1.png]])
| Secret crawlspace
| 7 Perception
| secret ventilation shaft section with a footlocker and a rathound
|-
| [[Rail Crossing]], behind bar ([[:File:rc1.png|rc1.png]])
| Secret door
| 7 Perception
| leads to [[Deacon]]'s shop
|-
| Rail Crossing, [[Buzzer's Shop]]'s ventilation shafts ([[:File:rc_shop 3.png|rc_shop 3.png]])
| Hidden Ventilation Shaft
| 7 Perception
| secret ventilation shaft section with [[Hardware Bug]]
|-
| Lower Underrail, [[Dude's vision|The warehouse from Dude's vision]] ([[:File:lu-b4.png|lu-b4.png]])
| Secret crawlspace
| Quest trigger
| leads to the lower level of the warehouse during Dude's quest
|-
| [[Free Drones Base]], east room
| Trapdoor
| 11 Perception
| can't be opened; handle breaks
|-
| [[Upper Caves]], north from the Hanging Rat bar ([[:File:lux-c2.png|lux-c2.png]])
| Hidden stash
| 11 Perception
| secret stash inside rock pillar (not visible on the linked map)
|-
| Foundry, Evelyn's home ([[:File:fo3.png|fo3.png]])
| Trapdoor
| 10 Perception
| [[:File:Fo3-tunnel.png|connects]] Evelyn's house and bunker
|-
| Foundry, Evelyn's home ([[:File:fo3.png|fo3.png]])
| Secret crawlspace
| Quest trigger
| leads to Evelyn's [[:File:Fo-bunker.png|bunker]] if a male player character [[Foundry murders|has a drink]] with her
|-
| [[Lower Underrail]], cave west of [[Foundry]] ([[:File:lu-b22x.png|lu-b22x.png]])
| Hidden stash
| 10 Perception
| secret stash inside rock pillar
|-
| Core City, SW middle level ([[:File:Cc17.png|Cc17.png]])
| Ladder
| 14 Perception
| leads to utility section electric coil area
|-
| Core City, utility section ([[:File:Cc_utility.png|Cc_utility.png]])
| Squeeze though gap in pipes
| ? Perception
| leads to Phreak's hideout
|-
| Core City, utility section steam area
| Junk pile
| ? Perception
| mechanical components (probably randomized), NW corridor
|-
| Core City, utility section steam area
| Plasma cell
| ? Perception
| hidden plasma cell, through the door east of the steam console, along the south wall
|-
| Core City, utility section electric coil area
| Bag
| ? Perception
| knife (probably randomized), SE room on 2nd floor
|-
| Core City, [[Drop Zone]] ([[:File:cc15.png|cc15.png]])
| Secret door
| Quest trigger or 6 Perception
| leads to Bogdan's [[:File:Cc15x.png|hideout]], can be found with perception or by learning about it from [[Kupusije]] during [[Find Bogdan]], or with perception after starting [[Sewers generator]]/[[Retrieve ICPD]]
|-
| Core City, inside one of [[Drop Zone]] buildings ([[:File:cc5_1.png|cc5_1.png]])
| Trapdoor
| 8 Perception
| leads to the basement
|-
| Core City, north [[Core City Sewers]] ([[:File:cc_s2.png|cc_s2.png]])
| Door
| 8 Perception
| leads to a secret room on the west side
|-
| Core City, northwest [[Core City Sewers]] ([[:File:cc_s6 2.png|cc_s6 2.png]])
| Switch
| Quest trigger
| opens door to Acid Hunters' hideout during the [[Look for Cornell]] quest
|-
| [[Upper Underrail]], east of [[Notus Living Block]] ([[:File:up3x.png|up3x.png]])
| Trapdoor
| 7 Perception
| [[:File:Up3x_1.png|connects]] trapdoor and a Lunatic base
|-
| [[Upper Underrail]], inside [[Panacea Lab]] ([[:File:plb.png|plb.png]])
| Switch
| 8 Perception
| opens door to the room in the northeast corner
|-
| [[Upper Underrail]], northeast corner ([[:File:Up7.png|Up7.png]])
| Ventilation Shaft
| ? Perception
| Connects inside of structure to outside, north of the barrel fire
|-
| [[Institute of Tchort]], utility section, northeast corner ([[:File:tch-util3.png|tch-util3.png]])
| Ventilation Shaft
| 8 Perception
| [[:File:Tch-vent.png|connects]] west wing and utility section
|-
| [[Institute of Tchort]], west wing, in coil spider room ([[:File:tch-ww2.png|tch-ww2.png]])
| Ventilation Shaft
| 7 Perception
| [[:File:Tch-vent.png|connects]] west wing and utility section
|-
| Institute of Tchort, [[Harpocrates Station]], north room ([[:File:tch_met.png|tch_met.png]])
| Secret crawlspace
| Quest trigger
| leads to the ventilation system during [[Track down Rassophore Nevil]]
|-
| Institute of Tchort, [[Upper Underrail Ventilation System]] ([[:File:tch_mv1.png|tch_mv1.png]])
| Secret crawlspace
| 8 Perception
| secret ventilation shaft section with a box
|-
| Institute of Tchort, [[Upper Underrail Ventilation System]], southwest room ([[:File:tch_mv1_2.png|tch_mv1_2.png]])
| Secret trapdoor
| 10 Perception
| leads to hidden [[:File:Tch_mv1_3.png|basement]]
|-
| [[Deep Caverns]], lake, northeast bank ([[:File:dc-lk.png|dc-lk.png]])
| Underwater rock bridge
| 7 Perception
| leads to a small island with hackable box
|-
| [[Deep Caverns]], lake, southwest islet ([[:File:dc-lk.png|dc-lk.png]])
| Sniper rifle
| 10 Perception
| reveals [[Black Arrow]] sniper rifle
|-
| Deep Caverns, [[Hollow Earth]] ([[:File:dc-la2.png|dc-la2.png]])
| Secret crawlspace
| 8 Perception
| secret entrance to the small building on the east
|-
| Deep Caverns, checkpoint between Caerus and warehouses ([[:File:dc-cp1.png|dc-cp1.png]])
| Underwater rock bridge
| 8 Perception
| leads to the east bank of the lake
|-
| Deep Caverns, [[Warehouse Block 2]], south toxic storage ([[:File:dc-wh3.png|dc-wh3.png]])
| Trapdoor
| 8 Perception
| leads to lower [[:File:Dc-wh3_1.png|level]], [[Psionic Mentor: Electrokinetic Imprint|Electrokinetic Imprint]] mentor
|-
| Deep Caverns, [[Caerus Residential]], northwest building, second floor ([[:File:dc-res2 2.png|dc-res2 2.png]])
| Ventilation Shaft
| 10 Perception
| leads to a [[:File:Dc-sc.png|cavern]] with [[Gunter Vasilica]], [[Psionic Mentor: Pseudo-spatial Projection|Pseudo-spatial Projection]] mentor, and [[Regenerative Mixture]]
|-
| Deep Caverns, [[Caerus Residential]], west apartment ([[:File:dc-res3.png|dc-res3.png]])
| Safe
| 6 Perception
| secret (empty) safe
|-
| Deep Caverns, [[Arke Power Station]], utility section toxic storage ([[:File:dc-pp_ut.png|dc-pp_ut.png]])
| Trapdoor
| 11 Perception
| [[:File:Dc-pp_ut_1.png|connects]] toxic storage and storage room, random psionic mentor
|-
| Deep Caverns, [[Arke Power Station]], utility section storage room ([[:File:dc-pp_ut.png|dc-pp_ut.png]])
| Trapdoor
| 10 Perception
| [[:File:Dc-pp_ut_1.png|connects]] toxic storage and storage room, random psionic mentor
|-
| Deep Caverns, [[Mushroom Forest|Deep Mushroom Forest]] ([[:File:dc-fs4.png|dc-fs4.png]])
| Secret tunnel
| 9 Perception
| leads to the northwest corner and a skeleton
|}

=== Expedition ===
{{incomplete list}}

{| class="sortable wikitable"
|-
! Location, Underrail !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| [[Abandoned Waterway Facility]], east zone || Hidden stash in rock pillar || ? Perception || exceptionally high-quality mutated-dog leather
|-
| [[The Rig]], room #2 || [[Note (The Rig)]] || 5 Perception || under the bed
|-
| [[Chancer's Bay]], NE map || Hole through wall of shack || 10 Perception || biohazard boots, mutants
|-
| [[Isaac's River]], northernmost map || Hidden stash || 10 Perception || stash in north wall of cave
|-
| [[Core City Docks]], empty room next to Ray's shop || Vent in north wall || ? || leads into Ray's shop, dying burglar
|-
| [[Dude's House - Core City]] || Cracked floor panel/wall safe || ? || key to wall safe/the safe itself
|-
| [[Dude's House - Caves]] || Footlocker under bed || 9 Perception || psionic mentor
|-
| [[Grey Army Base]], two rooms east of the rift || Secret trapdoor || 8 Perception || electronic components
|-
| [[Grey Army Base]], 2nd floor || Wall safe || 9 Perception || secret safe in north wall of northwest room
|-
| [[Grey Army Base]], 2nd floor || Secret crawlspace || 9 Perception || Connects northern and southern parts of the ventilation system
|}

{{incomplete list}}

{| class="sortable wikitable"
|-
! Location, Black Sea !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| [[Black Sea]] ([[E4]]), north side of island || Entrance to cave || 11 Perception || entrance to pirate prison sewer, boss hermit crab
|-
| [[Siphoner Pools (Black Sea)]] || Underwater rock bridge || 7 Perception || leads to a lingula plant and a random treasure "crevice"
|-
| [[Siphoner Pools (Black Sea)]], west chamber || Buried box || 11 Perception || SGS credits, Charons, UN dollars
|-
| [[Black Sea]] ([[C8]]), hopper island cave, north wall, west side || Hidden stash || 9 Perception || secret stash in cave wall, quiver belt and special bolts
|-
| [[Black Sea]] ([[A10]]), Yngwar's cave island, hidden walkway in water on east side|| Hidden stash || ? Perception || secret stash in cave wall, coagulation shot(s) and rusting acid chemical ammo
|-
| [[Mutie Refuge]], crane room || Hidden vent shaft || 7 Perception || secret vent shaft through wall into crane room
|-
| [[West Storage Depot]], lvl 3 by the elevator || Hidden vent shaft || 8 Perception || secret vent shaft to blocked room
|-
| [[Crimson Meadow Horticulture Center]] lower floor, west section, north side || Hidden vent shaft || 11 Perception || secret vent shaft through wall
|-
| [[Black Sea]] ([[I1]]), outside the Health Center, SE corner || Hidden hole through wall || 10 Perception || secret passage to hidden room
|-
| [[Black Sea]] ([[I2]]), tower north of Health Center, 2nd floor || Hidden corpse || 9 Perception || corpse with loot (can be looted without detection)
|-
| [[Nexus of Technology]], level 1, SE room || Hidden wall safe || 9 Perception || loot
|-
| [[Port Crag]], east building || Hidden pipe tunnel || 9 Perception || Crawl through to west building, 2nd floor (agility 8; it is from the other direction)
|-
| [[Fetid Marsh]], east side of [[K5]]/west side of [[L5]] || Hidden map exit(s) || 7 Perception || secret camp with [[Signed Arena Ticket]] Oddity and [[Slimy Tablet Computer]]
|-
| [[Fetid Marsh]], SW corner of [[K4]] || Hidden pool jumps || 12 Perception || secret platforms for easier jumping across leper pool
|-
| Map M7 (two maps east of the Nexus), NW corner || Hidden passages || 9 Perception || secret passages to/from hidden room, shortcut past creepers
|}

{{Base abilities navbox}}
[[Category: Base Abilities]]

Perception

2022-02-13T09:01:39Z

Harperfan7: /* Base game */

{{Quote
| Perception represents character's ability to discern objects from far away as well as to notice hidden things in their vicinity. It helps the character to use ranged weapons more effectively, as well as detect hidden objects, passages and creatures.
| In-game description
}}

== Details ==
'''Perception''' determines your character's overall awareness and effectiveness with ranged weapons. It also affects your character's chance to detect hidden passages, objects or stealthed creatures and NPCs. It does not increase your vision or visible range. Perception does not directly affect your chance to hit, but rather increases your ranged weapon skills, which in turn increases your chance to hit with ranged weapons. Melee weapon hit rate is unchanged but increased with melee skill (through strength or dexterity). No items require perception to be used or equipped.

High perception score is important for characters who wish to use ranged weapons or find traps, stealthed enemies and secrets.

{{Synergies|
* [[Guns]]
* [[Crossbows]]
|
* [[Detection]]
* Finding secrets (uses perception score instead of detection)
}}

== Related feats ==
See [[:Category:Perception feats]].
* [[Snooping]] increases perception by 3 for the purposes of finding secrets.
* [[Increased Perception]] veteran feat increases it by 2.

== Related items ==

=== Headwear ===
* {{Itemlink|Adaptive Goggles}} (+1 Perception on equip)
* {{Itemlink|Metal Helmet}}s (-1 Perception on equip)
* {{Itemlink|Aegis Sec-trooper Helmet}}{{expedition-inline}} (-1 Perception on equip)
* {{Itemlink|Praetorian Lawgiver}} (-1 Perception on equip)
* {{Itemlink|Gas Mask}} (-2 Perception on equip)

=== Suit ===
* {{Itemlink|Tchortist Noble Robe}} (-1 Perception on equip)
* {{Itemlink|Tchortist Rassophore Armor}} (-1 Perception on equip)
* {{Itemlink|Biohazard Suit}} (-2 Perception on equip)
* {{Itemlink|Fire Proximity Suit}} (-2 Perception on equip)
* {{Itemlink|Robe}} (-2 Perception on equip)
* {{Itemlink|Tchortist Robe}} (-2 Perception on equip)

=== Food ===
* {{Itemlink|All-in}} (temporarily +3 all base abilities)
* {{Itemlink|Mushroom Salad}} (temporary +1 Perception)
* {{Itemlink|Junkyard Surprise}} (temporary random base ability effect, can only decrease Perception)
* {{Itemlink|Clean Deal}} (temporary -1 Perception)
* {{Itemlink|Mushroom Brew}} (temporary -2 Perception)
* {{Itemlink|Kzozel}} {{expedition-inline}} (temporary -2 Perception)
* {{Itemlink|White Dude}} (temporarily -2 Perception)

=== Drugs ===
* {{Itemlink|Third Eye (drug)|Third Eye}}{{expedition-inline}} (temporary +3 Perception for the purpose of finding secrets)
* {{Itemlink|Bioluminous Marsh Honey}}{{expedition-inline}} (temporary +2 Perception)
* {{Itemlink|Supersoldier Drug (medicine)|Supersoldier Drug}} (temporary +2 Perception)
* {{Itemlink|The Juice}} (temporary +1 Perception)

== Perception checks ==
[[File:Tilemarker Perception.png|left]]

Discovering secret areas is based on [[Perception]] score alone, unlike detecting traps and stealthed characters, which is based on [[Detection]]. Discovering some secrets requires prior knowledge instead of Perception score.

In addition to secrets, [[Underrail: Expedition]] expansion added visible in-world Perception checks similar to [[Strength]], [[Dexterity]] and [[Agility]] checks.

=== Base game ===

{{incomplete list}}

{| class="sortable wikitable"
|-
! Location !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| Lower Caves, [[South Gate Outposts]], Area '''South outposts''', inside NW outpost ([[:File:Forlornstations1.png|Forlornstations1.png]])
| Trapdoor
| 6 Perception
| [[:File:ForlornStations4_1.png|connects]] the two south outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''South outposts''', inside NE outpost ([[:File:Forlornstations1.png|Forlornstations1.png]])
| Trapdoor
| 6 Perception
| [[:File:ForlornStations4_1.png|connects]] the two south outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''East outpost''', inside the outpost ([[:File:ForlornStations4.png|ForlornStations4.png]])
| Trapdoor
| 7 Perception
| [[:File:ForlornStations1_1.png|connects]] east and northwest outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''East outpost''', northeast tunnels ([[:File:ForlornStations4.png|ForlornStations4.png]])
| Trapdoor
| 8 Perception
| [[:File:ForlornStations1_1.png|connects]] east and northwest outposts
|-
| [[Under-passages]] area 1, near SGS ([[:File:lup-a1.png|lup-a1.png]])
| Door
| 7 Perception
| secret room along east wall, [[Strange Comm Device]] oddity
|-
| Lower Underrail, [[GMS compound level 1]] ([[:File:GammaCompound1.png|GammaCompound1.png]])
| Safe
| 7 Perception
| secret safe in room near southwest corner
|-
| Lower Underrail, [[GMS compound level 2]] ([[:File:GammaCompound2.png|GammaCompound2.png]])
| Secret passage
| 7 Perception
| secret room along east wall, [[Old Data Medium]] oddity
|-
| Lower Underrail, [[GMS compound level 3]] ([[:File:GammaCompound3.png|GammaCompound3.png]])
| First aid box
| ? Perception
| SW room, hidden under couch, medicine including an advanced health hypo
|-
| [[Lower Caves]], east from [[GMS compound level 3]] ([[:File:cv12.png|cv12.png]])
| Secret crawlspace
| 8 Perception
| leads to the back entrance of the raider [[:File:Cv14.png|base]]
|-
| [[Lower Caves]], raider [[:File:Cv14.png|base]]
| Adrenaline shot
| ? Perception
| under Page's bed
|-
| [[Lower Caves]] between Mushroom Cove and Junkyard ([[:File:jyt1.png|jyt1.png]])
| Underwater rock bridge
| 8 Perception
| leads to a small island
|-
| Lower Caves, [[Siphoner Pools]], northeast ([[:File:jyt3.png|jyt3.png]])
| Underwater rock bridge
| 8 Perception
| leads to the northeast corner of the cave
|-
| Lower Caves, [[Water Treatment Facility]]
| Plasma cell
| ? Perception
| under a table in the power room
|-
| Lower Caves, [[Water Treatment Facility]]
| Shotgun shells
| ? Perception
| on top of a locker in the SE room on the upper level
|-
| Lower Caves, [[Water Treatment Facility]]
| First-aid kit
| ? Perception
| in the SE room on the lower level, has antidotes
|-
| Lower Caves, [[Water Treatment Facility]]
| Deathstalker corpse with oddity
| ? Perception
| in a secret compartment in the ventilation system
|-
| Lower Caves, [[Water Treatment Facility]]
| Hidden vent shaft
| ? Perception
| along north wall on the lower level, leads to secluded room with loot
|-
| [[Silent Isle]], southeast ([[:File:si1.png|si1.png]])
| Underwater rock bridge
| 7 Perception
| leads to a small island with a corpse
|-
| Junkyard, Security control room of [[Depot A]] east area ([[:File:ojy2.png|ojy2.png]])
| Secret door
| 10 perception
| shortcut bypassing the turrets
|-
| [[Lower Underrail]] area 6, Lunatic camp ([[:File:lu-a6.png|lu-a6.png]])
| Hidden stash
| 8 Perception
| secret footlocker near rock pile
|-
| [[Upper Caves]], south of Milton's camp ([[:File:lux-a10.png|lux-a10.png]])
| Underwater rock bridge
| 7 Perception
| shortcut between the north and south bank of the river
|-
| [[Upper Caves]], ironhead camp, north of the Bunker ([[:File:Lux-b16.png|Lux-b16.png]])
| Hidden stash
| ? Perception
| NW corner of map, through the backside of the camp, a jumping bean and tabi boots
|-
| [[Upper Caves]], Synesthete/Formedicator camp, under the Oculus
| Hidden stash
| ? Perception
| in the rock next to the Synesthete, 293 charons
|-
| [[Upper Caves]], misty river north of Hecate caves entrance
| Hidden box
| ? Perception
| contains a luxury item
|-
| [[Upper Caves]], Lost Vault entrance ([[:File:Lux-b9.png|Lux-b9.png]])
| Hidden ventilation shaft
| ? Perception
| leads into the shack behind the trader
|-
| [[Upper Caves]], Lost Vault interior
| Hidden first-aid box
| ? Perception
| 2 antidotes and a health hypo
|-
| [[Upper Caves]], Lost Vault interior
| Hidden footlocker
| ? Perception
| in room along north wall, electronic component(s)
|-
| [[Upper Caves]], Lost Vault interior
| Hidden bag
| ? Perception
| in room along west wall, advanced repair kits & a lighter
|-
| [[Lower Caves]], south of [[Crossroad Caves]] ([[:File:cv2.png|cv2.png]])
| Trapdoor
| 8 Perception
| [[:File:Cv2 1.png|connects]] southwest and southeast corner, locked box with random psionic mentor
|-
| [[Lower Caves]], south of [[Crossroad Caves]] ([[:File:cv2.png|cv2.png]])
| Underwater rock bridge
| 7 Perception
| shortcut bypassing siphoners
|-
| Lower Caves, south of [[Camp Hathor]] ([[:File:cv19.png|cv19.png]])
| Underwater rock bridge
| 7 Perception
| shortcut bypassing rathound nest
|-
| Lower Caves, [[Rathound King Lair]] ([[:File:rkl2.png|rkl2.png]])
| Door
| Quest trigger
| shortcut leading outside if you offer to [[Kidnap Sarine|kidnap Sarine]] or [[Kill the Rathound King|negotiate a truce]] with Camp Hathor
|-
| Lower Caves, [[Rathound King Lair]], outside ([[:File:cv21.png|cv21.png]])
| Door
| Quest trigger
| shortcut leading to the lair if you offer to [[Kidnap Sarine|kidnap Sarine]] or [[Kill the Rathound King|negotiate a truce]] with Camp Hathor
|-
| Lower Underrail, [[Abandoned Warehouse]] ([[:File:aw1-1.png|aw1-1.png]])
| Secret crawlspace
| 7 Perception
| secret ventilation shaft section with a footlocker and a rathound
|-
| [[Rail Crossing]], behind bar ([[:File:rc1.png|rc1.png]])
| Secret door
| 7 Perception
| leads to [[Deacon]]'s shop
|-
| Rail Crossing, [[Buzzer's Shop]]'s ventilation shafts ([[:File:rc_shop 3.png|rc_shop 3.png]])
| Hidden Ventilation Shaft
| 7 Perception
| secret ventilation shaft section with [[Hardware Bug]]
|-
| Lower Underrail, [[Dude's vision|The warehouse from Dude's vision]] ([[:File:lu-b4.png|lu-b4.png]])
| Secret crawlspace
| Quest trigger
| leads to the lower level of the warehouse during Dude's quest
|-
| [[Free Drones Base]], east room
| Trapdoor
| 11 Perception
| can't be opened; handle breaks
|-
| [[Upper Caves]], north from the Hanging Rat bar ([[:File:lux-c2.png|lux-c2.png]])
| Hidden stash
| 11 Perception
| secret stash inside rock pillar (not visible on the linked map)
|-
| Foundry, Evelyn's home ([[:File:fo3.png|fo3.png]])
| Trapdoor
| 10 Perception
| [[:File:Fo3-tunnel.png|connects]] Evelyn's house and bunker
|-
| Foundry, Evelyn's home ([[:File:fo3.png|fo3.png]])
| Secret crawlspace
| Quest trigger
| leads to Evelyn's [[:File:Fo-bunker.png|bunker]] if a male player character [[Foundry murders|has a drink]] with her
|-
| [[Lower Underrail]], cave west of [[Foundry]] ([[:File:lu-b22x.png|lu-b22x.png]])
| Hidden stash
| 10 Perception
| secret stash inside rock pillar
|-
| Core City, SW middle level ([[:File:Cc17.png|Cc17.png]])
| Ladder
| 14 Perception
| leads to utility section electric coil area
|-
| Core City, utility section ([[:File:Cc_utility.png|Cc_utility.png]])
| Squeeze though gap in pipes (3 agi)
| ? Perception
| leads to Phreak's hideout
|-
| Core City, utility section steam area
| Junk pile
| ? Perception
| mechanical components (probably randomized), NW corridor
|-
| Core City, utility section steam area
| Plasma cell
| ? Perception
| hidden plasma cell, through the door east of the steam console, along the south wall
|-
| Core City, utility section electric coil area
| Bag
| ? Perception
| knife (probably randomized), SE room on 2nd floor
|-
| Core City, [[Drop Zone]] ([[:File:cc15.png|cc15.png]])
| Secret door
| Quest trigger or 6 Perception
| leads to Bogdan's [[:File:Cc15x.png|hideout]], can be found with perception or by learning about it from [[Kupusije]] during [[Find Bogdan]], or with perception after starting [[Sewers generator]]/[[Retrieve ICPD]]
|-
| Core City, inside one of [[Drop Zone]] buildings ([[:File:cc5_1.png|cc5_1.png]])
| Trapdoor
| 8 Perception
| leads to the basement
|-
| Core City, north [[Core City Sewers]] ([[:File:cc_s2.png|cc_s2.png]])
| Door
| 8 Perception
| leads to a secret room on the west side
|-
| Core City, northwest [[Core City Sewers]] ([[:File:cc_s6 2.png|cc_s6 2.png]])
| Switch
| Quest trigger
| opens door to Acid Hunters' hideout during the [[Look for Cornell]] quest
|-
| [[Upper Underrail]], east of [[Notus Living Block]] ([[:File:up3x.png|up3x.png]])
| Trapdoor
| 7 Perception
| [[:File:Up3x_1.png|connects]] trapdoor and a Lunatic base
|-
| [[Upper Underrail]], inside [[Panacea Lab]] ([[:File:plb.png|plb.png]])
| Switch
| 8 Perception
| opens door to the room in the northeast corner
|-
| [[Upper Underrail]], northeast corner ([[:File:Up7.png|Up7.png]])
| Ventilation Shaft
| ? Perception
| Connects inside of structure to outside, north of the barrel fire
|-
| [[Institute of Tchort]], utility section, northeast corner ([[:File:tch-util3.png|tch-util3.png]])
| Ventilation Shaft
| 8 Perception
| [[:File:Tch-vent.png|connects]] west wing and utility section
|-
| [[Institute of Tchort]], west wing, in coil spider room ([[:File:tch-ww2.png|tch-ww2.png]])
| Ventilation Shaft
| 7 Perception
| [[:File:Tch-vent.png|connects]] west wing and utility section
|-
| Institute of Tchort, [[Harpocrates Station]], north room ([[:File:tch_met.png|tch_met.png]])
| Secret crawlspace
| Quest trigger
| leads to the ventilation system during [[Track down Rassophore Nevil]]
|-
| Institute of Tchort, [[Upper Underrail Ventilation System]] ([[:File:tch_mv1.png|tch_mv1.png]])
| Secret crawlspace
| 8 Perception
| secret ventilation shaft section with a box
|-
| Institute of Tchort, [[Upper Underrail Ventilation System]], southwest room ([[:File:tch_mv1_2.png|tch_mv1_2.png]])
| Secret trapdoor
| 10 Perception
| leads to hidden [[:File:Tch_mv1_3.png|basement]]
|-
| [[Deep Caverns]], lake, northeast bank ([[:File:dc-lk.png|dc-lk.png]])
| Underwater rock bridge
| 7 Perception
| leads to a small island with hackable box
|-
| [[Deep Caverns]], lake, southwest islet ([[:File:dc-lk.png|dc-lk.png]])
| Sniper rifle
| 10 Perception
| reveals [[Black Arrow]] sniper rifle
|-
| Deep Caverns, [[Hollow Earth]] ([[:File:dc-la2.png|dc-la2.png]])
| Secret crawlspace
| 8 Perception
| secret entrance to the small building on the east
|-
| Deep Caverns, checkpoint between Caerus and warehouses ([[:File:dc-cp1.png|dc-cp1.png]])
| Underwater rock bridge
| 8 Perception
| leads to the east bank of the lake
|-
| Deep Caverns, [[Warehouse Block 2]], south toxic storage ([[:File:dc-wh3.png|dc-wh3.png]])
| Trapdoor
| 8 Perception
| leads to lower [[:File:Dc-wh3_1.png|level]], [[Psionic Mentor: Electrokinetic Imprint|Electrokinetic Imprint]] mentor
|-
| Deep Caverns, [[Caerus Residential]], northwest building, second floor ([[:File:dc-res2 2.png|dc-res2 2.png]])
| Ventilation Shaft
| 10 Perception
| leads to a [[:File:Dc-sc.png|cavern]] with [[Gunter Vasilica]], [[Psionic Mentor: Pseudo-spatial Projection|Pseudo-spatial Projection]] mentor, and [[Regenerative Mixture]]
|-
| Deep Caverns, [[Caerus Residential]], west apartment ([[:File:dc-res3.png|dc-res3.png]])
| Safe
| 6 Perception
| secret (empty) safe
|-
| Deep Caverns, [[Arke Power Station]], utility section toxic storage ([[:File:dc-pp_ut.png|dc-pp_ut.png]])
| Trapdoor
| 11 Perception
| [[:File:Dc-pp_ut_1.png|connects]] toxic storage and storage room, random psionic mentor
|-
| Deep Caverns, [[Arke Power Station]], utility section storage room ([[:File:dc-pp_ut.png|dc-pp_ut.png]])
| Trapdoor
| 10 Perception
| [[:File:Dc-pp_ut_1.png|connects]] toxic storage and storage room, random psionic mentor
|-
| Deep Caverns, [[Mushroom Forest|Deep Mushroom Forest]] ([[:File:dc-fs4.png|dc-fs4.png]])
| Secret tunnel
| 9 Perception
| leads to the northwest corner and a skeleton
|}

=== Expedition ===
{{incomplete list}}

{| class="sortable wikitable"
|-
! Location, Underrail !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| [[Abandoned Waterway Facility]], east zone || Hidden stash in rock pillar || ? Perception || exceptionally high-quality mutated-dog leather
|-
| [[The Rig]], room #2 || [[Note (The Rig)]] || 5 Perception || under the bed
|-
| [[Chancer's Bay]], NE map || Hole through wall of shack || 10 Perception || biohazard boots, mutants
|-
| [[Isaac's River]], northernmost map || Hidden stash || 10 Perception || stash in north wall of cave
|-
| [[Core City Docks]], empty room next to Ray's shop || Vent in north wall || ? || leads into Ray's shop, dying burglar
|-
| [[Dude's House - Core City]] || Cracked floor panel/wall safe || ? || key to wall safe/the safe itself
|-
| [[Dude's House - Caves]] || Footlocker under bed || 9 Perception || psionic mentor
|-
| [[Grey Army Base]], two rooms east of the rift || Secret trapdoor || 8 Perception || electronic components
|-
| [[Grey Army Base]], 2nd floor || Wall safe || 9 Perception || secret safe in north wall of northwest room
|-
| [[Grey Army Base]], 2nd floor || Secret crawlspace || 9 Perception || Connects northern and southern parts of the ventilation system
|}

{{incomplete list}}

{| class="sortable wikitable"
|-
! Location, Black Sea !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| [[Black Sea]] ([[E4]]), north side of island || Entrance to cave || 11 Perception || entrance to pirate prison sewer, boss hermit crab
|-
| [[Siphoner Pools (Black Sea)]] || Underwater rock bridge || 7 Perception || leads to a lingula plant and a random treasure "crevice"
|-
| [[Siphoner Pools (Black Sea)]], west chamber || Buried box || 11 Perception || SGS credits, Charons, UN dollars
|-
| [[Black Sea]] ([[C8]]), hopper island cave, north wall, west side || Hidden stash || 9 Perception || secret stash in cave wall, quiver belt and special bolts
|-
| [[Black Sea]] ([[A10]]), Yngwar's cave island, hidden walkway in water on east side|| Hidden stash || ? Perception || secret stash in cave wall, coagulation shot(s) and rusting acid chemical ammo
|-
| [[Mutie Refuge]], crane room || Hidden vent shaft || 7 Perception || secret vent shaft through wall into crane room
|-
| [[West Storage Depot]], lvl 3 by the elevator || Hidden vent shaft || 8 Perception || secret vent shaft to blocked room
|-
| [[Crimson Meadow Horticulture Center]] lower floor, west section, north side || Hidden vent shaft || 11 Perception || secret vent shaft through wall
|-
| [[Black Sea]] ([[I1]]), outside the Health Center, SE corner || Hidden hole through wall || 10 Perception || secret passage to hidden room
|-
| [[Black Sea]] ([[I2]]), tower north of Health Center, 2nd floor || Hidden corpse || 9 Perception || corpse with loot (can be looted without detection)
|-
| [[Nexus of Technology]], level 1, SE room || Hidden wall safe || 9 Perception || loot
|-
| [[Port Crag]], east building || Hidden pipe tunnel || 9 Perception || Crawl through to west building, 2nd floor (agility 8; it is from the other direction)
|-
| [[Fetid Marsh]], east side of [[K5]]/west side of [[L5]] || Hidden map exit(s) || 7 Perception || secret camp with [[Signed Arena Ticket]] Oddity and [[Slimy Tablet Computer]]
|-
| [[Fetid Marsh]], SW corner of [[K4]] || Hidden pool jumps || 12 Perception || secret platforms for easier jumping across leper pool
|-
| Map M7 (two maps east of the Nexus), NW corner || Hidden passages || 9 Perception || secret passages to/from hidden room, shortcut past creepers
|}

{{Base abilities navbox}}
[[Category: Base Abilities]]

Message in a Bottle

2022-02-13T08:10:48Z

Harperfan7: /* Locations */

{{Expedition}}
{{infobox item
| itemquality = oddity
| image = Message in a Bottle.png
| name = Message in a Bottle
| type = Oddity
| description = An old cheesy love letter vomited out by the Black Sea.
| capabilities = Pick up: Study this item to gain 1 point of experience. You can study this type of item up to 2 times.
}}

'''Message in a Bottle''' is an oddity in Black Sea.

== Locations ==
{{expand section|detailed locations}}
* One can be found in a barrel in G4.
* One can be found in a "rubble" pile in D10.
* One can be found in a seashell in the NE corner of K4.

{{Oddities navbox}}
[[Category:Items]]
[[Category:Oddities]]

Perception

2022-02-11T10:40:02Z

Harperfan7: /* Base game */

{{Quote
| Perception represents character's ability to discern objects from far away as well as to notice hidden things in their vicinity. It helps the character to use ranged weapons more effectively, as well as detect hidden objects, passages and creatures.
| In-game description
}}

== Details ==
'''Perception''' determines your character's overall awareness and effectiveness with ranged weapons. It also affects your character's chance to detect hidden passages, objects or stealthed creatures and NPCs. It does not increase your vision or visible range. Perception does not directly affect your chance to hit, but rather increases your ranged weapon skills, which in turn increases your chance to hit with ranged weapons. Melee weapon hit rate is unchanged but increased with melee skill (through strength or dexterity). No items require perception to be used or equipped.

High perception score is important for characters who wish to use ranged weapons or find traps, stealthed enemies and secrets.

{{Synergies|
* [[Guns]]
* [[Crossbows]]
|
* [[Detection]]
* Finding secrets (uses perception score instead of detection)
}}

== Related feats ==
See [[:Category:Perception feats]].
* [[Snooping]] increases perception by 3 for the purposes of finding secrets.
* [[Increased Perception]] veteran feat increases it by 2.

== Related items ==

=== Headwear ===
* {{Itemlink|Adaptive Goggles}} (+1 Perception on equip)
* {{Itemlink|Metal Helmet}}s (-1 Perception on equip)
* {{Itemlink|Aegis Sec-trooper Helmet}}{{expedition-inline}} (-1 Perception on equip)
* {{Itemlink|Praetorian Lawgiver}} (-1 Perception on equip)
* {{Itemlink|Gas Mask}} (-2 Perception on equip)

=== Suit ===
* {{Itemlink|Tchortist Noble Robe}} (-1 Perception on equip)
* {{Itemlink|Tchortist Rassophore Armor}} (-1 Perception on equip)
* {{Itemlink|Biohazard Suit}} (-2 Perception on equip)
* {{Itemlink|Fire Proximity Suit}} (-2 Perception on equip)
* {{Itemlink|Robe}} (-2 Perception on equip)
* {{Itemlink|Tchortist Robe}} (-2 Perception on equip)

=== Food ===
* {{Itemlink|All-in}} (temporarily +3 all base abilities)
* {{Itemlink|Mushroom Salad}} (temporary +1 Perception)
* {{Itemlink|Junkyard Surprise}} (temporary random base ability effect, can only decrease Perception)
* {{Itemlink|Clean Deal}} (temporary -1 Perception)
* {{Itemlink|Mushroom Brew}} (temporary -2 Perception)
* {{Itemlink|Kzozel}} {{expedition-inline}} (temporary -2 Perception)
* {{Itemlink|White Dude}} (temporarily -2 Perception)

=== Drugs ===
* {{Itemlink|Third Eye (drug)|Third Eye}}{{expedition-inline}} (temporary +3 Perception for the purpose of finding secrets)
* {{Itemlink|Bioluminous Marsh Honey}}{{expedition-inline}} (temporary +2 Perception)
* {{Itemlink|Supersoldier Drug (medicine)|Supersoldier Drug}} (temporary +2 Perception)
* {{Itemlink|The Juice}} (temporary +1 Perception)

== Perception checks ==
[[File:Tilemarker Perception.png|left]]

Discovering secret areas is based on [[Perception]] score alone, unlike detecting traps and stealthed characters, which is based on [[Detection]]. Discovering some secrets requires prior knowledge instead of Perception score.

In addition to secrets, [[Underrail: Expedition]] expansion added visible in-world Perception checks similar to [[Strength]], [[Dexterity]] and [[Agility]] checks.

=== Base game ===

{{incomplete list}}

{| class="sortable wikitable"
|-
! Location !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| Lower Caves, [[South Gate Outposts]], Area '''South outposts''', inside NW outpost ([[:File:Forlornstations1.png|Forlornstations1.png]])
| Trapdoor
| 6 Perception
| [[:File:ForlornStations4_1.png|connects]] the two south outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''South outposts''', inside NE outpost ([[:File:Forlornstations1.png|Forlornstations1.png]])
| Trapdoor
| 6 Perception
| [[:File:ForlornStations4_1.png|connects]] the two south outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''East outpost''', inside the outpost ([[:File:ForlornStations4.png|ForlornStations4.png]])
| Trapdoor
| 7 Perception
| [[:File:ForlornStations1_1.png|connects]] east and northwest outposts
|-
| Lower Caves, [[South Gate Outposts]], Area '''East outpost''', northeast tunnels ([[:File:ForlornStations4.png|ForlornStations4.png]])
| Trapdoor
| 8 Perception
| [[:File:ForlornStations1_1.png|connects]] east and northwest outposts
|-
| [[Under-passages]] area 1, near SGS ([[:File:lup-a1.png|lup-a1.png]])
| Door
| 7 Perception
| secret room along east wall, [[Strange Comm Device]] oddity
|-
| Lower Underrail, [[GMS compound level 1]] ([[:File:GammaCompound1.png|GammaCompound1.png]])
| Safe
| 7 Perception
| secret safe in room near southwest corner
|-
| Lower Underrail, [[GMS compound level 2]] ([[:File:GammaCompound2.png|GammaCompound2.png]])
| Secret passage
| 7 Perception
| secret room along east wall, [[Old Data Medium]] oddity
|-
| Lower Underrail, [[GMS compound level 3]] ([[:File:GammaCompound3.png|GammaCompound3.png]])
| First aid box
| ? Perception
| SW room, hidden under couch, medicine including an advanced health hypo
|-
| [[Lower Caves]], east from [[GMS compound level 3]] ([[:File:cv12.png|cv12.png]])
| Secret crawlspace
| 8 Perception
| leads to the back entrance of the raider [[:File:Cv14.png|base]]
|-
| [[Lower Caves]], raider [[:File:Cv14.png|base]]
| Adrenaline shot
| ? Perception
| under Page's bed
|-
| [[Lower Caves]] between Mushroom Cove and Junkyard ([[:File:jyt1.png|jyt1.png]])
| Underwater rock bridge
| 8 Perception
| leads to a small island
|-
| Lower Caves, [[Siphoner Pools]], northeast ([[:File:jyt3.png|jyt3.png]])
| Underwater rock bridge
| 8 Perception
| leads to the northeast corner of the cave
|-
| Lower Caves, [[Water Treatment Facility]]
| Plasma cell
| ? Perception
| under a table in the power room
|-
| Lower Caves, [[Water Treatment Facility]]
| Shotgun shells
| ? Perception
| on top of a locker in the SE room on the upper level
|-
| Lower Caves, [[Water Treatment Facility]]
| First-aid kit
| ? Perception
| in the SE room on the lower level, has antidotes
|-
| Lower Caves, [[Water Treatment Facility]]
| Deathstalker corpse with oddity
| ? Perception
| in a secret compartment in the ventilation system
|-
| Lower Caves, [[Water Treatment Facility]]
| Hidden vent shaft
| ? Perception
| along north wall on the lower level, leads to secluded room with loot
|-
| [[Silent Isle]], southeast ([[:File:si1.png|si1.png]])
| Underwater rock bridge
| 7 Perception
| leads to a small island with a corpse
|-
| Junkyard, Security control room of [[Depot A]] east area ([[:File:ojy2.png|ojy2.png]])
| Secret door
| 10 perception
| shortcut bypassing the turrets
|-
| [[Lower Underrail]] area 6, Lunatic camp ([[:File:lu-a6.png|lu-a6.png]])
| Hidden stash
| 8 Perception
| secret footlocker near rock pile
|-
| [[Upper Caves]], south of Milton's camp ([[:File:lux-a10.png|lux-a10.png]])
| Underwater rock bridge
| 7 Perception
| shortcut between the north and south bank of the river
|-
| [[Upper Caves]], ironhead camp, north of the Bunker ([[:File:Lux-b16.png|Lux-b16.png]])
| Hidden stash
| ? Perception
| NW corner of map, through the backside of the camp, a jumping bean and tabi boots
|-
| [[Upper Caves]], Synesthete/Formedicator camp, under the Oculus
| Hidden stash
| ? Perception
| in the rock next to the Synesthete, 293 charons
|-
| [[Upper Caves]], misty river north of Hecate caves entrance
| Hidden box
| ? Perception
| contains a luxury item
|-
| [[Upper Caves]], Lost Vault entrance ([[:File:Lux-b9.png|Lux-b9.png]])
| Hidden ventilation shaft
| ? Perception
| leads into the shack behind the trader
|-
| [[Upper Caves]], Lost Vault interior
| Hidden first-aid box
| ? Perception
| 2 antidotes and a health hypo
|-
| [[Upper Caves]], Lost Vault interior
| Hidden footlocker
| ? Perception
| in room along north wall, electronic component(s)
|-
| [[Upper Caves]], Lost Vault interior
| Hidden bag
| ? Perception
| in room along west wall, advanced repair kits & a lighter
|-
| [[Lower Caves]], south of [[Crossroad Caves]] ([[:File:cv2.png|cv2.png]])
| Trapdoor
| 8 Perception
| [[:File:Cv2 1.png|connects]] southwest and southeast corner, locked box with random psionic mentor
|-
| [[Lower Caves]], south of [[Crossroad Caves]] ([[:File:cv2.png|cv2.png]])
| Underwater rock bridge
| 7 Perception
| shortcut bypassing siphoners
|-
| Lower Caves, south of [[Camp Hathor]] ([[:File:cv19.png|cv19.png]])
| Underwater rock bridge
| 7 Perception
| shortcut bypassing rathound nest
|-
| Lower Caves, [[Rathound King Lair]] ([[:File:rkl2.png|rkl2.png]])
| Door
| Quest trigger
| shortcut leading outside if you offer to [[Kidnap Sarine|kidnap Sarine]] or [[Kill the Rathound King|negotiate a truce]] with Camp Hathor
|-
| Lower Caves, [[Rathound King Lair]], outside ([[:File:cv21.png|cv21.png]])
| Door
| Quest trigger
| shortcut leading to the lair if you offer to [[Kidnap Sarine|kidnap Sarine]] or [[Kill the Rathound King|negotiate a truce]] with Camp Hathor
|-
| Lower Underrail, [[Abandoned Warehouse]] ([[:File:aw1-1.png|aw1-1.png]])
| Secret crawlspace
| 7 Perception
| secret ventilation shaft section with a footlocker and a rathound
|-
| [[Rail Crossing]], behind bar ([[:File:rc1.png|rc1.png]])
| Secret door
| 7 Perception
| leads to [[Deacon]]'s shop
|-
| Rail Crossing, [[Buzzer's Shop]]'s ventilation shafts ([[:File:rc_shop 3.png|rc_shop 3.png]])
| Hidden Ventilation Shaft
| 7 Perception
| secret ventilation shaft section with [[Hardware Bug]]
|-
| Lower Underrail, [[Dude's vision|The warehouse from Dude's vision]] ([[:File:lu-b4.png|lu-b4.png]])
| Secret crawlspace
| Quest trigger
| leads to the lower level of the warehouse during Dude's quest
|-
| [[Free Drones Base]], east room
| Trapdoor
| 11 Perception
| can't be opened; handle breaks
|-
| [[Upper Caves]], north from the Hanging Rat bar ([[:File:lux-c2.png|lux-c2.png]])
| Hidden stash
| 11 Perception
| secret stash inside rock pillar (not visible on the linked map)
|-
| Foundry, Evelyn's home ([[:File:fo3.png|fo3.png]])
| Trapdoor
| 10 Perception
| [[:File:Fo3-tunnel.png|connects]] Evelyn's house and bunker
|-
| Foundry, Evelyn's home ([[:File:fo3.png|fo3.png]])
| Secret crawlspace
| Quest trigger
| leads to Evelyn's [[:File:Fo-bunker.png|bunker]] if a male player character [[Foundry murders|has a drink]] with her
|-
| [[Lower Underrail]], cave west of [[Foundry]] ([[:File:lu-b22x.png|lu-b22x.png]])
| Hidden stash
| 10 Perception
| secret stash inside rock pillar
|-
| Core City, utility section ([[:File:Cc_utility.png|Cc_utility.png]])
| Squeeze though gap in pipes (3 agi)
| ? Perception
| leads to Phreak's hideout
|-
| Core City, utility section steam area
| Junk pile
| ? Perception
| mechanical components (probably randomized), NW corridor
|-
| Core City, utility section steam area
| Plasma cell
| ? Perception
| hidden plasma cell, through the door east of the steam console, along the south wall
|-
| Core City, utility section electric coil area
| Bag
| ? Perception
| knife (probably randomized), SE room on 2nd floor
|-
| Core City, [[Drop Zone]] ([[:File:cc15.png|cc15.png]])
| Secret door
| Quest trigger or 6 Perception
| leads to Bogdan's [[:File:Cc15x.png|hideout]], can be found with perception or by learning about it from [[Kupusije]] during [[Find Bogdan]], or with perception after starting [[Sewers generator]]/[[Retrieve ICPD]]
|-
| Core City, inside one of [[Drop Zone]] buildings ([[:File:cc5_1.png|cc5_1.png]])
| Trapdoor
| 8 Perception
| leads to the basement
|-
| Core City, north [[Core City Sewers]] ([[:File:cc_s2.png|cc_s2.png]])
| Door
| 8 Perception
| leads to a secret room on the west side
|-
| Core City, northwest [[Core City Sewers]] ([[:File:cc_s6 2.png|cc_s6 2.png]])
| Switch
| Quest trigger
| opens door to Acid Hunters' hideout during the [[Look for Cornell]] quest
|-
| [[Upper Underrail]], east of [[Notus Living Block]] ([[:File:up3x.png|up3x.png]])
| Trapdoor
| 7 Perception
| [[:File:Up3x_1.png|connects]] trapdoor and a Lunatic base
|-
| [[Upper Underrail]], inside [[Panacea Lab]] ([[:File:plb.png|plb.png]])
| Switch
| 8 Perception
| opens door to the room in the northeast corner
|-
| [[Upper Underrail]], northeast corner ([[:File:Up7.png|Up7.png]])
| Ventilation Shaft
| ? Perception
| Connects inside of structure to outside, north of the barrel fire
|-
| [[Institute of Tchort]], utility section, northeast corner ([[:File:tch-util3.png|tch-util3.png]])
| Ventilation Shaft
| 8 Perception
| [[:File:Tch-vent.png|connects]] west wing and utility section
|-
| [[Institute of Tchort]], west wing, in coil spider room ([[:File:tch-ww2.png|tch-ww2.png]])
| Ventilation Shaft
| 7 Perception
| [[:File:Tch-vent.png|connects]] west wing and utility section
|-
| Institute of Tchort, [[Harpocrates Station]], north room ([[:File:tch_met.png|tch_met.png]])
| Secret crawlspace
| Quest trigger
| leads to the ventilation system during [[Track down Rassophore Nevil]]
|-
| Institute of Tchort, [[Upper Underrail Ventilation System]] ([[:File:tch_mv1.png|tch_mv1.png]])
| Secret crawlspace
| 8 Perception
| secret ventilation shaft section with a box
|-
| Institute of Tchort, [[Upper Underrail Ventilation System]], southwest room ([[:File:tch_mv1_2.png|tch_mv1_2.png]])
| Secret trapdoor
| 10 Perception
| leads to hidden [[:File:Tch_mv1_3.png|basement]]
|-
| [[Deep Caverns]], lake, northeast bank ([[:File:dc-lk.png|dc-lk.png]])
| Underwater rock bridge
| 7 Perception
| leads to a small island with hackable box
|-
| [[Deep Caverns]], lake, southwest islet ([[:File:dc-lk.png|dc-lk.png]])
| Sniper rifle
| 10 Perception
| reveals [[Black Arrow]] sniper rifle
|-
| Deep Caverns, [[Hollow Earth]] ([[:File:dc-la2.png|dc-la2.png]])
| Secret crawlspace
| 8 Perception
| secret entrance to the small building on the east
|-
| Deep Caverns, checkpoint between Caerus and warehouses ([[:File:dc-cp1.png|dc-cp1.png]])
| Underwater rock bridge
| 8 Perception
| leads to the east bank of the lake
|-
| Deep Caverns, [[Warehouse Block 2]], south toxic storage ([[:File:dc-wh3.png|dc-wh3.png]])
| Trapdoor
| 8 Perception
| leads to lower [[:File:Dc-wh3_1.png|level]], [[Psionic Mentor: Electrokinetic Imprint|Electrokinetic Imprint]] mentor
|-
| Deep Caverns, [[Caerus Residential]], northwest building, second floor ([[:File:dc-res2 2.png|dc-res2 2.png]])
| Ventilation Shaft
| 10 Perception
| leads to a [[:File:Dc-sc.png|cavern]] with [[Gunter Vasilica]], [[Psionic Mentor: Pseudo-spatial Projection|Pseudo-spatial Projection]] mentor, and [[Regenerative Mixture]]
|-
| Deep Caverns, [[Caerus Residential]], west apartment ([[:File:dc-res3.png|dc-res3.png]])
| Safe
| 6 Perception
| secret (empty) safe
|-
| Deep Caverns, [[Arke Power Station]], utility section toxic storage ([[:File:dc-pp_ut.png|dc-pp_ut.png]])
| Trapdoor
| 11 Perception
| [[:File:Dc-pp_ut_1.png|connects]] toxic storage and storage room, random psionic mentor
|-
| Deep Caverns, [[Arke Power Station]], utility section storage room ([[:File:dc-pp_ut.png|dc-pp_ut.png]])
| Trapdoor
| 10 Perception
| [[:File:Dc-pp_ut_1.png|connects]] toxic storage and storage room, random psionic mentor
|-
| Deep Caverns, [[Mushroom Forest|Deep Mushroom Forest]] ([[:File:dc-fs4.png|dc-fs4.png]])
| Secret tunnel
| 9 Perception
| leads to the northwest corner and a skeleton
|}

=== Expedition ===
{{incomplete list}}

{| class="sortable wikitable"
|-
! Location, Underrail !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| [[Abandoned Waterway Facility]], east zone || Hidden stash in rock pillar || ? Perception || exceptionally high-quality mutated-dog leather
|-
| [[The Rig]], room #2 || [[Note (The Rig)]] || 5 Perception || under the bed
|-
| [[Chancer's Bay]], NE map || Hole through wall of shack || 10 Perception || biohazard boots, mutants
|-
| [[Isaac's River]], northernmost map || Hidden stash || 10 Perception || stash in north wall of cave
|-
| [[Core City Docks]], empty room next to Ray's shop || Vent in north wall || ? || leads into Ray's shop, dying burglar
|-
| [[Dude's House - Core City]] || Cracked floor panel/wall safe || ? || key to wall safe/the safe itself
|-
| [[Dude's House - Caves]] || Footlocker under bed || 9 Perception || psionic mentor
|-
| [[Grey Army Base]], two rooms east of the rift || Secret trapdoor || 8 Perception || electronic components
|-
| [[Grey Army Base]], 2nd floor || Wall safe || 9 Perception || secret safe in north wall of northwest room
|-
| [[Grey Army Base]], 2nd floor || Secret crawlspace || 9 Perception || Connects northern and southern parts of the ventilation system
|}

{{incomplete list}}

{| class="sortable wikitable"
|-
! Location, Black Sea !! Secret !!data-sort-type="number"| Requirement !! Details
|-
| [[Black Sea]] ([[E4]]), north side of island || Entrance to cave || 11 Perception || entrance to pirate prison sewer, boss hermit crab
|-
| [[Siphoner Pools (Black Sea)]] || Underwater rock bridge || 7 Perception || leads to a lingula plant and a random treasure "crevice"
|-
| [[Siphoner Pools (Black Sea)]], west chamber || Buried box || 11 Perception || SGS credits, Charons, UN dollars
|-
| [[Black Sea]] ([[C8]]), hopper island cave, north wall, west side || Hidden stash || 9 Perception || secret stash in cave wall, quiver belt and special bolts
|-
| [[Black Sea]] ([[A10]]), Yngwar's cave island, hidden walkway in water on east side|| Hidden stash || ? Perception || secret stash in cave wall, coagulation shot(s) and rusting acid chemical ammo
|-
| [[Mutie Refuge]], crane room || Hidden vent shaft || 7 Perception || secret vent shaft through wall into crane room
|-
| [[West Storage Depot]], lvl 3 by the elevator || Hidden vent shaft || 8 Perception || secret vent shaft to blocked room
|-
| [[Crimson Meadow Horticulture Center]] lower floor, west section, north side || Hidden vent shaft || 11 Perception || secret vent shaft through wall
|-
| [[Black Sea]] ([[I1]]), outside the Health Center, SE corner || Hidden hole through wall || 10 Perception || secret passage to hidden room
|-
| [[Black Sea]] ([[I2]]), tower north of Health Center, 2nd floor || Hidden corpse || 9 Perception || corpse with loot (can be looted without detection)
|-
| [[Nexus of Technology]], level 1, SE room || Hidden wall safe || 9 Perception || loot
|-
| [[Port Crag]], east building || Hidden pipe tunnel || 9 Perception || Crawl through to west building, 2nd floor (agility 8; it is from the other direction)
|-
| [[Fetid Marsh]], east side of [[K5]]/west side of [[L5]] || Hidden map exit(s) || 7 Perception || secret camp with [[Signed Arena Ticket]] Oddity and [[Slimy Tablet Computer]]
|-
| [[Fetid Marsh]], SW corner of [[K4]] || Hidden pool jumps || 12 Perception || secret platforms for easier jumping across leper pool
|-
| Map M7 (two maps east of the Nexus), NW corner || Hidden passages || 9 Perception || secret passages to/from hidden room, shortcut past creepers
|}

{{Base abilities navbox}}
[[Category: Base Abilities]]