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.

Areas

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

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

Map Gallery

Lower Underrail Global Map

Near South Gate Station

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, connects to SGS, GMS warehouses, Alpha warehouses, Under-passages
Lower Underrail A2
Lower Underrail A3
Lower Underrail A4, connects to Upper Caves
Lower Underrail A5
Lower Underrail A6
Lower Underrail A7, connects to Upper Caves
Lower Underrail A8
Lower Underrail A9
Lower Underrail A10
Lower Underrail C11, Omega Station

Near Rail Crossing

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

Lower Underrail B7

Has Ironhead Grenadier and Ironhead Bomber enemies
Has a footlocker in the NW requiring 30 Lockpicking

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

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
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:

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

This section needs expansion.

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

This section needs expansion.

Lower Underrail B1
Lower Underrail B2
Lower Underrail B3
Lower Underrail B4
Dude's warehouse
Lower Underrail B5
Lower Underrail B6
Lower Underrail B7
Lower Underrail B8, connects to Under-passages
Lower Underrail B9
Lower Underrail B10, connects to Under-passages (hidden footlocker at the south end)
Lower Underrail B10U1, dark metro tunnels between Rail Crossing and SRO
Lower Underrail B10U2, dark metro tunnels between Rail Crossing and SRO
Lower Underrail B10U2
Lower Underrail B10U2, black crawler nest
Lower Underrail B11, connects to Rail Crossing
Lower Underrail B12, Rail Crossing station
Lower Underrail B13, connects to Abandoned Warehouse
Lower Underrail B27
Lower Underrail B27U, dark metro tunnels near SRO
Lower Underrail B28
Secluded Station (Lower Underrail B29)
Lower Underrail B30, outside South Railroad Outpost
Lower Underrail B32, dark metro tunnels near SRO
Lower Underrail B33, dark metro tunnels near SRO
Lower Underrail B34
Lower Underrail B35
Lower Underrail B36
Lower Underrail B37

Near Foundry

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^Verify
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^Verify
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^Verify
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 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
- Has a locker requiring 50 Lockpicking
- The medical locker contains a Doctor's Pouch
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)
Lower Underrail B15, Ironhead railway camp
Lower Underrail B16, connects to Warehouse Block Beta
Lower Underrail B17
Lower Underrail B18
Lower Underrail B19, Ironhead checkpoint, connects to Warehouse Block Beta
Lower Underrail B20, connects to Upper Caves, Warehouse Block Beta
Lower Underrail B21, connects to Upper Caves
Lower Underrail B22, West-east tracks
Lower Underrail B22X, Faceless group
Lower Underrail B22U, dark metro tunnels between Foundry and Core City
Lower Underrail B23, West-east tracks
Lower Underrail B24, Foundry railyard
Lower Underrail B25, West-east tracks
Lower Underrail B26, East of Foundry
Lower Underrail B26X, Bandit cave (Hugo)
Lower Underrail B38
Lower Underrail B39
Lower Underrail B40
Lower Underrail B41
Lower Underrail B42

North of Foundry

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 westexit leads to area^Verify
The south exit leads to area^Verify
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 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^Verify
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^Verify (lux-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
Lower Underrail C2
Lower Underrail C3, medical room
Lower Underrail C4
Lower Underrail C5, Core City outskirts (hidden footlocker at the northeast corner)
Lower Underrail C6
Lower Underrail C7
Lower Underrail C8
Lower Underrail C9, connects to Upper Caves and Hecate Research Outpost
Core City outskirts, tunnels leading to north Underrail
Lower Underrail C10
Lower Underrail C11