Lower Underrail

Lower Underrail
Lower metro system of South Underrail. It used to connect mostly industrial facilities.
Major location information
Music	Searchlight Journey
Located in	Underrail
Areas	Lower Underrail
Connections	Under-passages Upper Caves GMS warehouse block Warehouse Block Alpha Abandoned Warehouse Warehouse Block Beta Hecate Research Outpost Stations: South Gate Station Rail Crossing South Railroad Outpost Foundry Core City
Fast Travel	Lower metro (South Gate Station) Lower metro (Rail Crossing) Lower metro (Foundry) Lower metro (Core City)
NPCs	Blaine, Jack Quicksilver
Technical Map file(s) lu-a1, lu-a2, lu-a3, lu-a4, lu-a5, lu-a6, lu-a7, lu-a8, lu-a9, lu-a10 lu-b1, lu-b2, lu-b3, lu-b4, lu-b5, lu-b6, lu-b7, lu-b8, lu-b9, lu-b10, lu-b11, lu-b12, lu-b13, lu-b27, lu-b28, lu-b29, lu-b30 lu-b14, lu-b15, lu-b16, lu-b17, lu-b18, lu-b19, lu-b20, lu-b21, lu-b22, lu-b22x, lu-b23, lu-b24, lu-b25, lu-b26, lu-b26x lu-c1, lu-c2, lu-c3, lu-c4, lu-c5, lu-c6, lu-c7, lu-c8, lu-c9 lu-b10u1, lu-b10u2, lu-b22u, lu-b27u

Lower Underrail is a huge derelict urban area consisting of over 60 zones between major locations. Above it is Upper Underrail, below it are Lower Caves and further down are the Deep Caverns.

Some caves are higher up and directly connected to Lower Underrail, these are known as Upper Caves.

Also immediately below Lower Underrail are under-passages, a network of smaller service tunnels and escape routes.

Description

The Lower Underrail was the industrial/military zone of the underground metro before the dissolution of Biocorp. It consists of sprawling main tunnels, metro tunnels and beneath them are smaller escape routes and other accessways. Various stations, towns, other settlements, abandoned complexes and industrial facilities reside in the Lower Underrail. Some wall breaches also lead to adjoining Upper Caves.

Lower Underrail is accessible from South Gate Station level 1 exit. Most of the explorable areas are to the north from SGS, but there are a couple of areas to the south, including a wall breach leading to upper caves. However, most of Lower Underrail is initially inaccessible due to cave-ins caused by the recent earthquake. They can be visited later on, once the south metro tunnel is cleared and the player has access to TNT Charges.

Enemies

Rathounds are a common sight and various, usually hostile, human outcasts have small camps all over the Lower Underrail.

Critters

Rathounds, Rathound Alphas, Dogs, Burrower Spawn, Pigs, Warthogs

Ironheads

Ironhead Grenadiers (lvl10), Ironhead Gunners (lvl10), Ironhead Smashers (lvl10), Ironhead Psionics (lvl15)

Lunatics

Lunatic Brawlers (lvl10), Lunatic Chillers (lvl10), Lunatic Gunners (lvl10), Lunatic Pyromaniacs (lvl15)

Lurkers

Lurker Cut-Throats (lvl10), Lurker Gunners (lvl10), Lurker Gunslingers (lvl15), Lurker Hunters (lvl15), Lurker Murderers (lvl15)

Other humans

Bandits (during Jack's delivery job quest), Free Drones bandits (during lost train quest)

Quests

• Jack's delivery job
• Find Blaine
• Kill Blaine

Map Gallery

• 

  Lower Underrail Global Map

Areas Near South Gate Station (Zone A)

Areas 5, 6, 7 and 8 east of South Gate Station are initially inaccessible, but can be explored once the player can clear the rocks blocking the way with TNT Charges.

Lower Underrail A1

• The stairs down (exit in the NW corner) lead to Lower Passages, area Underpassages A1
• In a barrel close to the South Gate Station entrance (south of the area) is a Protectorate Propaganda oddity, 1 XP

Lower Underrail A4

• West exit leads to Upper Caves area Upper Caves A1

Lower Underrail A6

• The north exit leads to area Lower Underrail A8
• The stairs in the NE lead down to Lower Passages, area Underpassages A2
• The south exit leads to area Lower Underrail A7
• The west exit leads to area Lower Underrail A5
• Is inhabited by some Dog, Lunatic Gunner and Lunatic Chiller, the latter carrying Lunatic's Key
• The barrel contains a Strange Comm Device oddity, 1 XP
• There is a hidden footlocker by the rubble north of the tent
• The footlocker south of the tent requires 60 Lockpicking or Lunatic's Key

Lower Underrail A7

• The north exit leads to area Lower Underrail A6
• The southwest exit leads down to Upper Caves area Upper Caves A12
• The lower box in SW area contains a Protectorate Propaganda oddity, 1 XP
• The upper box in SW area requires 60 Hacking
• The SE corner is habited by some Lurker Gunner and Lurker Cut-Throat

• 

  Lower Underrail A1, connects to SGS, GMS warehouses, Alpha warehouses, Under-passages

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  Lower Underrail A2

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  Lower Underrail A3

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  Lower Underrail A4, connects to Upper Caves

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  Lower Underrail A5

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  Lower Underrail A6

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  Lower Underrail A7, connects to Upper Caves

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  Lower Underrail A8

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  Lower Underrail A9

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  Lower Underrail A10

• 

  Lower Underrail C11, Omega Station

Areas Near Rail Crossing (Zone B)

This part of Lower Underrail is near Rail Crossing, to the northwest from South Gate Station. It becomes accessible once the player has access to metro travel and TNT Charges.

Lower Underrail B6

• This area is empty, it simply links area B30, B34 and Warehouse Block Alpha 2
• This is where the Free Drones wait for you to start the mission SRO assault

Lower Underrail B7

• Has Ironhead Grenadier and Ironhead Bomber enemies
• Has a footlocker in the NW requiring 30 Lockpicking
• South exit leads to area Lower Underrail B4

Lower Underrail B8

• Has several Dogs
• Has a box in the NW corner requiring 60 Hacking

Lower Underrail B9

• Has Ironhead Gunner, Ironhead Smasher and Ironhead Psionic
• The footlocker on the west side contains an Old Train Schedule oddity, 1 XP

Lower Underrail B10

• The north exits leads to area Rail Crossing, area Junction
• The southwest exit leads to area Lower Underrail B10u1
• The southeast exit leads to area Lower Underrail B9
• The west exit (stairs down) leads to Lower Passages, area Underpassages A6
• There is a hidden unmarked footlocker at the south end of the west exit containing 100 charons

Lower Underrail B10u1

• The north exit leads to area Lower Underrail B10
• The south exit leads to area Lower Underrail B10u2
• The west area:
  • Is inhabited by Lurker Gunner, Lurker Sniper, Lurker Hunter and Lurker Psionic
  • Is trapped by some Bear Traps and Frag Mines. They can be recovered with 61 Traps skill
  • Has a box requiring 60 hacking, containing a random psionic mentor
  • Flynn the Flayer is hiding here
• The room in the SW corner:
  • The door requires 45 Hacking
  • A Crawler and Death Stalker are lurking in that room

Lower Underrail B10u2

• The north exit leads to area Lower Underrail B10u1
• The south exit leads to area Lower Underrail B28
• The ladder leads to a second, dark part of the tunnels
  • It has several Crawlers and Death Stalkers hiding in the shadows
  • The destructible rocks lead to the northern part, but it's also possible to walk around it
  • The room with the skeleton in the center:
    • Has a switch to light the room, making the Death Stalker avoid it
    • Has a box requiring 60 Hacking
  • The natural cave to the north:
    • The slope down leads to area Black Crawler's nest
    • 3 respawning Mindshrooms
    • 4 respawning Cave Ears

Black Crawler's nest

• The slope up leads to area Lower Underrail B10u2
• A Black Crawler is hiding in the shadows
• 3 respawning Mindshrooms
• A skeleton has a Blueprint: Contaminated Bullets

Lower Underrail B12

• This area is the Rail Crossing metro(train) station providing instant travel (for 25 Charons) to:
  • South Gate Station
  • Foundry
  • Core City

Lower Underrail B39

• The west exit leads to area Lower Underrail B4
• Is inhabited by Lurker Murderer and Lurker Hunter
• There is a Spirit Poison Bear Trap and a Crawler Poison Bear Trap

Lower Underrail B13

• Has a respawning Mindshroom

Lower Underrail B27

• The north exit leads to area Lower Underrail B28
• The south exit leads to area Lower Underrail B27u
• The western exit becomes available with the Lost train quest from Captain Herve in Rail Crossing. It leads to area Lower Underrail B29

Lower Underrail B27u

• The north exit leads to area Lower Underrail B27
• The east exit leads to area Lower Underrail B32
• The buildings are guarded by a stealthy Lurker Hunter and a Lurker Gunslinger
• The south door of the corridor require 10 Lockpicking
• The footlocker requires 80 Lockpicking and contains a Psionic Mentor: Cryo-shield and some batteries

Lower Underrail B28

• The north exit leads to area Lower Underrail B10u2
• The south exit leads to area Lower Underrail B27
• The eastexit leads to area Lower Underrail B8
• The fenced area to the south can be opened with 55 Lockpicking

Lower Underrail B29

• This area is accessible from area Lower Underrail B27 when starting the Lost train quest from Captain Herve in Rail Crossing

Lower Underrail B30

• Has stealthy Lurker Cut-Throats
• The southern exit leads to South Railroad Outpost

Lower Underrail B33

• This area is empty, it simply links area B30, B32 and B34

Lower Underrail B34

• The north exit leads to area Lower Underrail B35
• The south exit leads to area Lower Underrail B33
• The east exit leads to area Lower Underrail B6
• The left passage is inhabited by stealthy Lurker Cut-Throat and Lurker Assassin
• The cabinet in the left passage contains an Old Train Schedule oddity, 1 XP

Lower Underrail B35

• The north exit leads to area Lower Underrail B36
• The south exit leads to area Lower Underrail B34
• The area is inhabited by a group of Ironhead Commando, Ironhead Psionic, Ironhead Cook, Ironhead Demolisher and Dog
• There is a Frag Mine on each side of the passage

• 

  Lower Underrail B1

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  Lower Underrail B2

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  Lower Underrail B3

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  Lower Underrail B4

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  Dude's warehouse

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  Lower Underrail B5

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  Lower Underrail B6

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  Lower Underrail B7

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  Lower Underrail B8, connects to Under-passages

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  Lower Underrail B9

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  Lower Underrail B10, connects to Under-passages (hidden footlocker at the south end)

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  Lower Underrail B10U1, dark metro tunnels between Rail Crossing and SRO

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  Lower Underrail B10U2, dark metro tunnels between Rail Crossing and SRO

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  Lower Underrail B10U2

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  Lower Underrail B10U2, black crawler nest

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  Lower Underrail B11, connects to Rail Crossing

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  Lower Underrail B12, Rail Crossing station

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  Lower Underrail B13, connects to Abandoned Warehouse

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  Lower Underrail B27

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  Lower Underrail B27U, dark metro tunnels near SRO

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  Lower Underrail B28

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  Secluded Station (Lower Underrail B29)

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  Lower Underrail B30, outside South Railroad Outpost

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  Lower Underrail B32, dark metro tunnels near SRO

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  Lower Underrail B33, dark metro tunnels near SRO

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  Lower Underrail B34

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  Lower Underrail B35

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  Lower Underrail B36

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  Lower Underrail B37

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  Lower Underrail B39

Areas Near Foundry (Zone B)

This part of Lower Underrail is near Foundry, to the north from South Gate Station and Rail Crossing. It becomes accessible once the player has access to metro travel and TNT Charges.

Lower Underrail B19

• The north exit leads to area Lower Underrail B23
• The south exit leads to Warehouse Block Beta, area NW Warehouse Block Beta
• Is inhabited by some Ironheads
• The locker near the cauldron requires 60 Lockpicking
• There is a Frag Mine and a Bear Trap on the east path

Lower Underrail B20

• The north exit leads to area Lower Underrail B41
• The south exit leads to Warehouse Block Beta, area
• The east exit leads to Lower Underrail B15
• Is inhabited by some Rathounds and a Rathound Alpha
• Has a respawning Cave Ears

Lower Underrail B22

• The north exit leads to area Lower Underrail B22x
• The west exit leads to area^Verify
• The east exit leads to area Lower Underrail B23

Lower Underrail B22x

• The south exit leads to area Lower Underrail B22
• This is where the Faceless for the quest Faceless recon are. They also give the quest Faceless' stolen object
• To the east is a hidden stash (need Perception)

Lower Underrail B23

• The north exit leads to area Lower Underrail C2
• The west exit leads to area Lower Underrail B22
• The south exit leads to area Lower Underrail B19
• The east exit leads to area Lower Underrail B24

Lower Underrail B24

• The north exit leads to the Foundry, area Central Foundry
• The west exit leads to area Lower Underrail B23
• The east exit leads to area Lower Underrail B25
• Leonie is a metal component merchant
• The desk near Leonie contains a Foundry Plans oddity, 1 XP
• The footlocker near Leonie contains a Skeleton Visor oddity, 2 XP

Lower Underrail B25

• The north exit leads to area Lower Underrail C3
• The west exit leads to area Lower Underrail B24
• The east exit leads to area Lower Underrail B26

Lower Underrail B26

• The north exit leads to area Lower Underrail B26x
• The west exit leads to area Lower Underrail B25
• The south exit leads to area Lower Underrail B42
• There is an Ironhead Berserker and an Ironhead Heavy Gunner over the corpse of dead man

Lower Underrail B26x

• The south exit leads to area Lower Underrail B26
• This is where Hugo was taken prisoner for the quest Faceless' stolen object

Lower Underrail B41

• The east exit leads to area Lower Underrail B42
• The south exit leads to area Lower Underrail B20

Lower Underrail B42

• The north exit leads to area Lower Underrail B26
• The west exit leads to area Lower Underrail B41
• The outside area is inhabitant with Ironhead Commando, Ironhead Bomber, Doberman
• The room:
  • Is inhabited by Ironheads
  • MacLander is found here
  • Has a locker requiring 50 Lockpicking
• There are 2 HE Mine Mk IIs and 2 Frag Mine Mk IIs on the main path. They can be recovered with 94 Traps skill (possibly less)

• 

  Lower Underrail B14 ("How to tame a rathound" book)

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  Lower Underrail B15, Ironhead railway camp

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  Lower Underrail B16, connects to Warehouse Block Beta

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  Lower Underrail B17

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  Lower Underrail B18

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  Lower Underrail B19, Ironhead checkpoint, connects to Warehouse Block Beta

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  Lower Underrail B20, connects to Upper Caves, Warehouse Block Beta

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  Lower Underrail B21, connects to Upper Caves

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  Lower Underrail B22, West-east tracks

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  Lower Underrail B22X, Faceless group

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  Lower Underrail B22U, dark metro tunnels between Foundry and Core City

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  Lower Underrail B23, West-east tracks

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  Lower Underrail B24, Foundry railyard

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  Lower Underrail B25, West-east tracks

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  Lower Underrail B26, East of Foundry

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  Lower Underrail B26X, Bandit cave (Hugo)

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  Lower Underrail B38

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  Lower Underrail B40

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  Lower Underrail B41

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  Lower Underrail B42

Areas North of Foundry (Zone C)

This part of Lower Underrail is located north of Foundry and east of Core City.

Lower Underrail C1

• The north exit leads to area Lower Underrail C4
• The west exit leads to RAF 013
• The south exit leads to area Lower Underrail B21
• The east area iss inhabited by a few Lunatics
• The footlocker near the lunatics contains a Bubblegum oddity, 1 XP

Lower Underrail C1B

• The south exit leads to area Lower Underrail C5
• Is inhabited by many Faceless

Lower Underrail C2

• The northeast exit leads to area Lower Underrail C7
• The northwest exit leads to area Lower Underrail C11
• The south exit leads to area Lower Underrail B23
• Is inhabited by a few Lunatics
• The footlocker by the lunatics contains an Old World Booze Bottle oddity, 2 XP
• The barrel by the lunatics contains a Bubblegum oddity, 1 XP

Lower Underrail C3

• The nort exit leads to area Lower Underrail C8
• The south exit leads to area Lower Underrail B25
• Is inhabited by a few Dogs
• Desk contains a Train Log oddity, 1 XP

Lower Underrail C4

• The east exit leads to area Lower Underrail C11
• The north exit leads to area Lower Underrail C5
• The southwest exit leads to area Lower Underrail C1
• The south exit near the metro rail leads to area^Verify
• Is inhabited by a few Rathound and Rathound Alpha
• The barrel in the northeast contains a Fancy Lighter oddity, 2 XP
• The barrel in the southwest contains a Train Log oddity, 1 XP

Lower Underrail C5

• The west exit leads to Core City Lower Level, area Core City Gates
• The north exit leads to area Lower Underrail C1B
• The east exit leads to area Lower Underrail C6
• The south exit leads to area Lower Underrail C4
• The barrel near the Praetorians contains a Biocorp Technology Catalog Fragment oddity, 1 XP

Lower Underrail C6

• The west exit leads to area Lower Underrail C5
• The east exit leads to area Lower Underrail C7
• The junk pile contains an Old World Booze Bottle oddity, 2 XP

Lower Underrail C7

• The west exit leads to area Lower Underrail C6
• The east exit leads to area Lower Underrail C10
• The south exit leads to area Lower Underrail C2
• The south area:
  • Is inhabited by Dog, Ironhead Bomber and Ironhead Demolisher
  • Is trapped with 5 HE Mine Mk II. They can be recovered with 100 Traps skill.
  • In the barrel near the ironheads is a Train Log oddity, 1 XP

Lower Underrail C8

• The west exit leads to area Lower Underrail C10
• The north exit leads to area Lower Underrail C9
• The south exit leads to area Lower Underrail C3
• Is inhabited by Rathounds and Rathound Alpha

Lower Underrail C9

• The south exit leads to area Lower Underrail C8
• The north exit leads to Hecate Research Outpost
• A passage down lead to to Upper Caves area Upper Caves C6

Lower Underrail C10

• The west exit leads to area Lower Underrail C7
• The east exit leads to area Lower Underrail C8
• Is inhabited by several Lurkers (Lurker Hunter, Lurker Gunslinger, Lurker Psionic, Lurker Trapper)
• Is trapped with 7 Bear Traps. They can be recovered with 100 Traps skill
• The box contains a Fancy Lighter oddity, 2 XP

Lower Underrail C11

• The south exit leads to area Lower Underrail C2
• The west exit leads to area Lower Underrail C4
• Is trapped with 3 Burrower Poison Bear Traps and 1 Bear Trap. You need 100 Traps to recover all all them.

• 

  Lower Underrail C1, connects to RAF 013

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  Lower Underrail C2

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  Lower Underrail C3, medical room

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  Lower Underrail C4

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  Lower Underrail C5, Core City outskirts (hidden footlocker at the northeast corner)

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  Lower Underrail C6

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  Lower Underrail C7

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  Lower Underrail C8

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  Lower Underrail C9, connects to Upper Caves and Hecate Research Outpost

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  Core City outskirts, tunnels leading to north Underrail

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  Lower Underrail C10

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  Lower Underrail C11