Locations
- For an alphabetical list of locations, see Category:Locations.
- For a full list of zones and corresponding map files, see Zones.
Underrail takes place in the titular Underrail, which is a vast system of metro station-states, abandoned underground complexes, natural caverns and tunnels, underground rivers and lakes.
This page contains an overview of some of the major locations in Underrail.
Major Locations
Upper Underrail
The Upper Underrail was the residential zone of the big underground metro system before things went to hell. Not yet in the game.
- Core City — A major city that spans both levels of Underrail and serves as a gateway between the levels.
Lower Underrail
The Lower Underrail was the industrial/military zone of the big underground metro system before things went to hell. All playable areas in the alpha version 0.1.10.0 are situated in south Lower Underrail and caves immediately beneath it.
North and Central Underrail
United Stations territory. Not yet in the game.
- Hub — A large settlement probably located in the middle of Central Underrail.
- Core City — A major city that spans both levels of Underrail and serves as a gateway between the levels and United Station territories that lie north of it.
South Underrail
The playable area in Alpha version. Location of the player's home, South Gate Station.
- South Gate Station — Also known as SGS, it is the most powerful station around South Underrail.
- Omega station — mentioned-only location, old rival of South Gate Station.
- Junkyard — A crude, lawless settlement formed around a junkyard near Depot A.
- Rail Crossing — A large town introduced in version 0.1.10.0, accessible by train.
- Mushroom Cove — A large underground lake where multiple small streams converge to form the Celeritas river.
- Silent Isle — An island located somewhere in the waterways between the Hub and the Junkyard.
- Celeritas — An underground river leading all the way down to the Deep Caverns.
Deep Caverns
The underworld jungle - a place of grim reputation, source of many legends and superstitions. The deepest reaches of the caverns of Underrail. Home to the Tunnelers.
- Tunneler City — Rumored to exist somewhere in the Deeps, at the end of the longest Tunneler tunnel.
Upcoming content
Secured and secret areas
Underrail rewards exploration and perceptive characters. There are secured and secret areas to be accessed all around. Finding these yields an experience bonus in addition to the loot and other benefits. Noticing secret areas often requires a high detection, which is derived from perception. The feat Snooping helps discovering secrets without high perception.
Secured areas
Accessing these gives ? XP per level (150 XP at 12)
- GMS compound level 1 room with backpack
- GMS compound level 2 storerooms with Mindshrooms in them
- Secret Old Junkyard entrance in Wormhole tunnel
Secrets
Finding these gives ? XP per level (290 XP at 12)
- 4 trapdoors in South Gate Outposts
- Door in Lower Underrail tunnels
- Secret passage in GMS compound level 2
- Underwater rock bridge in the Caves between Mushroom Cove and Junkyard
- Underwater rock bridge in northeast Siphoner pools
- Underwater rock bridge in southeast Silent Isle
- Secret door in the security control room of Depot A east area (requires 10 perception)
- Hidden stash at a lunatic camp in Lower Underrail area 6
Zone Control
- For the main article, see Zone Control.
All zones in the game can be split into 3 distinct categories of zone control:
fully controlled, 
partially controlled and 
uncontrolled zones.
The Zone Control Indicator can be found in the upper right corner of game UI.
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