Version history/Underrail 1.1

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Current versions
Stable version Experimental version
1.1.1.6 (29 January 2020) 1.1.2.4 (1 September 2020)

Version history and changelogs for Underrail 1.1.#.# versions. Patch notes can also be viewed on Underrail forums and Steam community if this page is not up to date.

Versioning scheme
Underrail release versioning scheme: 1.[major update].[update].[hotfix]
Starting from 2017 all smaller than major gameplay/content updates increment [update] while [hotfix] releases will contain only bugfixes. Up to version 1.0.1.10, hotfix versions could include new content and update versions were larger patches.
Experimental branch (test version)
As of 2017, experimental versions of new patches are available for testing (on Steam and GOG Galaxy) before they are released. For more information, see Dev Log #50: Experimental Branch.
Legacy branch (legacy psi mechanics)
The legacy branch permanently hosts version 1.1.1.6 with the legacy psi system and will receive no updates. For more information, see Dev Log #68: The Psi Question.

Underrail 1.1.2

Release Date: 21 July 2020 Summary: Waterways and Psi Update
  • General
    • Improved the start up time for the game
    • Initimidation now scales off either Strength or Will (whichever is higher)
    • [Expedition] Halved the cost of most jet ski frames, engines, batteries and suspensions
    • [Expedition] Increased the damage of all jet ski weapon attacks
  • Psi
    • You now have to "innervate" psi abilities that you plan to use and you're limited in the number of innervated psi slots (1 + 1 per 3 intelligence, up to maximum of 6). Existing psi characters can use Will stat instead for the number of slots with some downsides, or they can opt to switch to Int by consuming a pill that's been subtly slipped into their pockets.
    • Introduced psi reserves, which is the long term psi resource that does not regenerate naturally, but through the usage of psi inhalant which can not be done in combat. Psi reserves are depleted when you regenerate psi naturally or through psi boosters. Maximum amount of psi reserves is equal to 5 times the maximum psi points.
    • Psi inhalant is craftable with some skill in biology and chemistry.
    • All existing player characters will get generous amount of psi inhalants first time you load the game in new version
    • Upon loading the game for the first time in the new version, a random set of psi abilities will be pre-innervated for you. If you don't like the random selection, just reload the same save.
  • Psi Abilities
    • Force Field psi cost changed to 40 (up from 25)
    • Force Field is now destructable and has its health points scale with invoker's skill. Each segment of the force field has separate health, but destroying one will destroy all of them.
    • Thermodynamic Destabilization base damage percentage changed to 30% (down from 50%) and it now scales by 0.5% (down from 1%) per skill point and is capped at 100%.
    • Thermodynamic Destabilization action point cost changed to 10 (down from 20)
    • Enrage maximum duration changed to 2 (down from 4)
    • Increased the amount of damage of Neural Overload and Psi-cognitive Interruption blocked by resolve
    • Added psi mentors for all psionic abilities in the game (except one) to the random loot table
    • [Expedition] Psycho-temporal dilation and Limited temporal increment learning requirements swapped to their correct positions
    • [Expedition] Psycho-temporal contraction now has a high chance of causing its opposite (with randomized power) when it expires
  • Items
    • Biohazard suit now provides full protection from a certain very, very bad gas
    • Spearhead sniper rifles will now have base action points of 32 (up from 30)
    • Rapid Reloader firearm enhancement will now also have a 25% chance of restoring a random amount of action points ranging from 50% to 100% of the base action point cost of the weapon (but capped at 20ap); this can only trigger once per turn
    • Dragunov now costs 30 ap to fire (up from 25) and has 60% chance to restore 10-20 ap once per turn; also has slightly increased damage
    • Added shiv blueprint
    • [Expedition] Psionic Accelerator now increases psi regeneration by 50% (up from 20%)
    • [Expedition] Added Kzozel Yantar, a stronger version of Kzozel
  • Creatures
    • Reduced the throwing precision of hunchback mutants
    • Mutant dog's acid blob attack will now deal some of its damage directly
  • Quests / Areas
    • Added a mercantile check when paying to use the Wormhole
    • Silas' death will no longer fail the attack on Scrapper base quest; the player can now speak with Colton to get the reward instead
    • Added shiv components to certain encounters in which the player loses his inventory
    • Added new graphics for a few secret cave doors
    • [Expedition] Added more content for the waterways - one big new dungeon, a couple of smaller locations, many new random encounters and other stuff
    • [Expedition] Added some new ways to escape from a jail guarded by a hefty knife thrower
    • [Expedition] Added a vending machine to the Gray Army base; it accepts zlatortiyas only
    • [Expedition] In the same base, it is now possible to translate messages on one of the computers with sufficient intelligence
    • [Expedition] Added a tool with which the player can repair/configure a certain camp defense asset; found in multiple locations in the Black Sea
  • Visual
    • You can now zoom the game in by holding shift while scrolling the mouse button, but the feature needs to be enabled in the options first
    • High explosive and frag greandes and mines now have new visual effects
  • UI
    • Made a new death screen that will allow you to scroll through the combat log to see exactly what killed you if you didn't catch it during combat
    • Fixed the scroll bars so they can be mouse scrolled when moused over
  • Feats
    • Locus Of Control - Change AoE radius to 2 (down from 3)
    • Force User - now also increases health of force field by 50% (plus 5% per spec, max 5 spec points)
    • Critical Power - Base bonus changed to 1% (down from 1.5%) and spec bonus changed to 0.1% (down from 0.15%); I'm not happy with this feat in general. Straight unconditional passive damage boost feats is something I'm going to avoid in the future for sure
  • Tweaks
    • Acid pistols (and other acid attacks) will now spill acid on the ground regardless of whether they hit the primary target or not
    • Certain random encounters will no longer appear in low-level zones (Arsonist in early under-passages, rabid dogs in Crossroad Caves, etc.)
    • Balor now has Sprint, and gets an adrenaline shot on higher difficulties
    • Cliff can now be given a coagulation shot to stop him from bleeding to death
    • Kareem now needs his "memory refreshed" when asked about certain things
    • The Black Eels questline can now be started after you've found the drill rotor circuit board
    • Halved the amount of money Mykola needs to repair one big machine from 2000 to 1000 charons
    • Some dialogs tweaked to reflect the new psi changes
  • Bugs
    • Fixed the bug that cause the energy shield to dissipate at 2% instead of the nominal 10% rate every turn, but I set it to 5% base now instead because 10% just seems a bit too severe to me now; also changed the minimal dissipation rate to 1.5% (down from 2%)
    • Explosive barrels and various misc. explosions should now properly trigger volatile entities such as mines
    • Throwable barrels and rocks will now behave properly when throw in water (they will not detonate on impact)
    • You can no longer double-click while holding a modifier key (shift, alt, or ctrl). This is to prevent situations such as rapdily alt-left clicking to transfer items from a container from also triggering the double-click event and transfering extra items. Let me know if this
    • causes any anomalous behavior.
    • Sledgehammer and machete handle now also count as metal components like knife one
    • Fixed the bug that would cause the caster tentacles to crash the game after the player dies or disengages
    • Ranged weapon innate precision modifier will now always be if it's negative
    • Fixed Gorsky's base not being renovated on easy difficulty
    • Fixed sometimes not getting a quest note (and subsequent xp once it's completed) from Kohlmeier when starting his quest
    • Fixed traps not despawning after Foundry mines have been cleared, which resulted in hostile miners
    • Fixed spears and nets not appearing in the loot locker in the Arena
    • Fixed Saban not properly receiving his spare W2C ammo
    • [Expedition] Fixed JSHQ bioscan not detecting mutagens
    • [Expedition] Fixed an entrance to a cave near a certain homestead being impassable, even if discovered
    • [Expedition] Fixed an important flag not being set when going through some branches during a discussion about a truly deathly topic with the Ferryman
    • [Expedition] Fixed electrified floor destroying auto-turrets in Water Treatment Facility in one of the variations; also added a sound effect during discharge as to give the player a warning
    • [Expedition] Fixed a bug where sleeping in the camp (and under very specific circumstances) triggering a certain crucial event even if the player, paradoxically, already prevented its occurence
    • [Expedition] Fixed the final quest note prematurely being marked as completed
    • [Expedition] Fixed a crash that may occur if the player obtains some floaty things for the camp too early
    • [Expedition] Fixed certain native weapons being non-equippable
    • [Expedition] Fixed Captain Grim sometimes ending dialog when telling him about some facilities
    • [Expedition] Fixed being able to sleep in the camp even after you got fired
    • [Expedition] Fixed the bug that caused players to get stuck on some hives after destroying them.
    • Minor dialog/map/scripting tweaks

Hotfix 1.1.2.1

Release Date: 22 July 2020 Summary: Tweaks, bugfixes
  • Psi
    • Changed the psi empathy health reduction to 20% (down from 25%)
    • Changed the maximum number of psi slots to 8 (up from 6)
    • Changed the psi slot requirement to 2 int per slot (down from 3), and you get 2 slots for free (no requirements) (up from 1)
    • Changed the multischooling psi cost penalty to 10% (down from 15%)
    • [Expedition] Psycho-temporal contraction base psi cost changed to 50 (down from 75)
  • Feats
    • Shooting Spree - Will now grant an ability that, when activated, will cause your sniper kills to refund 100% their action point cost. This can happen twice and will expire after the turn ends. All your sniper rifle kills will now also reduced the cooldown of Shooting Spree in addition to Aimed Shot. Cooldown: 8 turns.
  • Specializations
    • Added Shooting Spree specialization that reduces cooldown of Shooting Spree by 1 turn per point. Max 2 points.
  • Bugs
    • New death screen actually enabled now
    • Fixed some of the new cave doors not being properly patched (old doors will remain instead and sometimes block the player from moving through)
    • Fixed an unknown item sometimes appearing among generated items
    • [Expedition]Fixed new quest cutscene on The Rig
    • Minor dialog and map fixes

Hotfix 1.1.2.2

Release Date: 28 July 2020 Summary: New psi feats, tweaks, bugfixes
  • Tweaks
    • Reduced the headlight enhancement and electric torch buzzing sound volume
    • Sound played when force field is damaged will no longer stack volume
    • Added static desaturated psionic inhalant blueprints and components to stores
    • Added 10 psi inhalants to the Gauntlet starting pack
  • Psi abilities
    • Electrobolts will no longer jump to force field segments (but they can target them directly)
    • [Expedition] Psycho-temporal contraction reversal chance now reverse-scales with skill and you can see the chance; and the psi cost reduction stated in the previous hotfix is now actually live
  • Feats
    • Added Psycho-neural Optimization - While having only one psi school innervated, the psi cost is reduced by 10%.
    • Added Psycho-neural Flexibility - One psi school is ignored when determining psi cost multischooling penalty.
    • Added Expanded Psi Capacitance - Increases psi reserves by 30%.
    • [Expedition] Shooting Spree - Cooldown changed to 10 (up from 8 ) and now only refunds one attack unspecced (see below)
  • Specializations
    • Force User: Forcefield Health - now increases FF health by 10% per spec point (up from 5%)
    • Added Psycho-neural Optimization spec - further reduces the psi cost by 1% per spec point (max 5)
    • Added Expanded Psi Capacitance spec - further increases psi reserves by 10% per spec point (max 2)
    • [Expedition] Shooting Spree: Cooldown - max spec points changed to 4 (up from 2)
    • [Expedition] Added Shooting Spree: Shots - Increases the number of refunded shots by one (max 1).
  • Items
    • Desaturated Psi Inhalant - Now restores 1500 psi reserves (up from 1000) over the same period
    • Bullhead - Now also provides immunity to daze.
    • Added Psi Circuit Extension - an enhancement for psionic headband that grants an additional psi slot
  • Bugs
    • Fixed the bug that caused a new psi ability to be innervated into all free slots instead of just one when learned from a teacher
    • Force field will no longer trigger traps
    • Enemies should no longer be able to AoE and Burst through Force field
    • Force field will no longer act as a decoy, at least not as well as it did
    • Made forcefield immune to most status effects
    • Consuming Psycho-neural Reconstructive Pill will now properly remove innervated abilities from locked slots
    • Fixed the bug that caused the entrance jumping ramp to stop working
    • Fixed a minor bug in Harlands dialog and nerfed the reward to his quest from 500 SGS credits to 400
    • Refixed new secret cave doors
    • Fixed a bug in Broderick's dialog where he wouldn't take you to Silent Isle under certain circumstances
    • Fixed a bug that prevented players to use stairs in certain location after they've saved the game in said location
    • [Expedition]Fixed D' Flinger aggroing people for carrying weapons around
    • [Expedition] Psycho-temporal contraction base psi cost changed to 50 (down from 75) for real this time
    • minor dialog and map fixes

Hotfix 1.1.2.3

Release Date: 31 July 2020 Summary: Tweaks, bugfixes
  • UI
    • Holding left or right ALT key will now allow you to always target the tile and ignore any entities; this will allow you to get behind your forcefields among other things
  • Tweaks
    • Tweaked the NPCs decision making a bit regarding when to attack the Forcefield and when to go around
  • Bugs
    • Electrokinesis will now be automatically innervated when learned from Bison
    • Neural Overload will now be automatically innervated when learned by alternative means from Ezra
    • Serrated and broadhead bolts and bear traps will no longer ignore bleed immunity on living creatures
    • Cyrokinetic Orb will no longer be able to crit targets immune to it when used with Psionic Mania
    • Psi-cognitive Interruption will no longer deal more damage than psi burned (modified by the damage modifier of course); previously it could deal normal damage even if no psi was burned
    • Fixed the bug that caused the game to crash when using force field against crawlers
    • Headlight component no longer stacks
    • Fixed Ion's quest upon completion not awarding player with money
    • [Expedition] Further fixes to the Dude's door
    • [Expedition] BArm Grinder 350 will now sport its stated power (instead of 250)
    • minor map and dialog fixes

Hotfix 1.1.2.4

Release Date: 1 September 2020 Summary: Tweaks, bugfixes
  • Tweaks
    • Changed the value of Psi Inhalant to 500 (up from 250)
    • Changed the value of Small Oxygen Tank to 275 (up from 150)
    • Added static psi inhalants to a few early game dungeons, and Pasquale now gives you four inhalants instead of two
    • Electric creep in Water Treatment Plant Facility will now reset when you exit the zone
    • Buffed Gorsky
    • Added a few agility checks to the Core City sewers
    • Core City warehouse defenders will now stay in the room they're in and won't run out into the larger area and get themselves overwhelmed
    • All Arena participants (including the player) will automatically turn on their shields at the end of match cutscenes and not the beginning
    • Added a couple of stronger creatures to the Arena on higher difficulties
    • Dangerous water shallows in the new dungeon will no longer deal damage but will instead either be passable or impassable depending on what jet ski you're riding
    • [Expedition] Renamed Magnar's shield bash and increased its damage
    • [Expedition] Staggered the temporal distortion triggering sound a bit so they do not overlap too much
    • [Expedition] Added the ability to lower UPCCS Armstrong shields once aboard
  • Bugs
    • Enarge should now properly lasts 2 turns max as stated in the original update
    • You can no longer AI-scramble Dreadnoughts
    • You can no longer bandage force field
    • Fixed the bug that caused turrets (including those manned) to fail to target force field when it blocks the firing line to the player
    • Fixed the bug that would sometimes cause vanishing powder to crash the game when used in real-time, also your turn should no longer automatically end as if you have no more action or movement points after using it when you've enabled "Automatically end turn" in gameplay options
    • Fixed Lucas' new quest sometimes not completing properly
    • Fixed being able to bring certain items into the Gauntlet. Also suited up the player before the intro cutscene; looks better then walking around in your underpants
    • Fixed various minor things related to new waterway dungeons/events
    • Fixed Otto's jetski missing engine
    • Fixed an issue with faction hostility regarding the members of Drag 'n' Drop
    • Fixed Pagos store not accepting any currency
    • [Expedition] Fixed Protectorate Cruiser patrols using Aegis Patrollers instead
    • [Expedition] Fixed Zoner Ma and dumpster-diving hobo not taking money from the player even if their dialog states so
    • [Expedition] Fixed Reef Glider selling price
    • [Expedition] Fixed musical cypher text being unintentionally bolded at certain places
    • [Expedition] Fixed the bug that would cause Naga protectors fusion cannon explosion to go through the force field
    • Minor global map fixes
    • Minor dialog and map fixes


Underrail 1.1.1

Release Date: 31 October 2019 Summary: Core City factions update
  • Tweaks
    • Cooked shot with incendiary chemical blob pistol will now apply fear effects to the fire-fearing creatures
    • Fence door made a bit easier to click
    • Reduced the maximum combat and movement speed up while in turn-based mode to 500% (down from 1000%) to avoid it glitching out some abilities
    • Kareem and Freddy now also sell fish
    • Sapke now uses W2C bullets
    • Loot from Arena matches will now be stored in the loot locker behind Lanista
    • [Expedition] Locusts will now spawn out of the hive every second turn instead of every turn
    • [Expedition] The sounds of crabs poping out of the ground will no longer stack in order to burst your eardrums
  • Creatures
    • Added Mole Cricket - a puny early game insect
    • Added Young Psi Beetle - a weaker version on regular psi beetle to be used in the early game on lower difficulties
    • Added Small Sentry Bot - a weaker version of the regular sentry bot to be used in the early game on lower difficulties
    • A certain evil robot assistant has been upgraded
    • Balor and Cornell now have unique models
    • Core City faction members now have distinctive looks


  • Crafting
    • Added a throwing net blueprint. One net requires 50 fabric scraps.
    • Added a thin and frag grenade and mine case blueprints. Create multiple cases from a metal plate (scales with plate quality).
    • Added lockpicks blueprint. They can be crafter from any type of metal plate and lockpick level scales with metal quality. Also at very high levels of metal quality you'll create bonus lockpicks. This is a rare blueprint.
    • Changed the required amount of scraps when creating a repair kit to 40 (up from 20) per stack
    • When recycling an item, the total weight of the scraps will always be less than the weight of the original item


  • Items
    • Added a faction specific armors and item for JKK, Coretech, Praetorian Security, Protectorate, Free Drones, and [REDACTED]
    • TNT Charge value changed to 800 (up from 350)
    • Added digital timer and cardboard container as a static merchandise to several traders
    • Huxkey can now be sold as electronic device
    • Improved Jawbone crossbow
    • Added a new unique crossbow somewhere out there
    • Changed the weight of repair kits to 1 and advanced repair kits to 2 (up from 0.25)
    • Changed the value of .44 JHP bullet to 52 (up from 20). No idea why it was so cheap before.
    • Fishing rod made a bit easier to click
    • Fishing rod's range has also been increased, making it possible to fish from some elevated platforms
    • Dismantling the fishing rod will now be done by right clicking and choosing that option
    • Added graphite as static merchandise to couple of stores
    • [Expedition] By popular demand the certain fancy armor will now sport the hood and mask on the player character also
    • [Expedition] Added bison milk consumable
    • [Expedition] Sormirbaren Spirit Staff no longer reduces psi costs
  • Quests/Areas
    • Added a couple of mini-dungeons that may randomly appear in the early game
    • The player can now ask Quinton for another set of putrefying bolts in case they used them up and still haven't managed to finish the quest
    • Fixed a gate leading to Depot A not being lockpickable
    • Added an agility check for climbing over the fence near the Protectorate embassy in Junkyard
    • [Expedition] Added a few extra visual clues to that cool dude's first old home; also lowered safe's required lockpicking skill to 60
    • [Expedition] Added an agility check for climbing over a wall in JSHQ's barracks
    • [Expedition] Tweaked the way camp loses supplies over time (slowed down and made a bit more consistent and dependent on more factors)
  • Feats
    • Cut-throat action point cost changed to 25 (down from 30) and can now also be performed out of stealth against incapacitated targets


  • UI
    • You will now see which targets qualify for Ambush feat proc based on their and your current location. The indicator will be placed left of the target's health bar.
    • Fixed the small offset of different chemical ammo icons that are show above the XP bar
    • The log will now write "is destroyed" for non-living targets
    • [Expedition] Fixed the vehicle weight display bug
  • Bugs
    • You will no longer be able to export your character while riding a vehicle
    • When casting electronic imprint on a "melee" trap, such as bear or blob trap, the trap will no longer jump to your location to trap you, but instead be destroyed in a regular manner; However, in addition to this, the electronic imprint will also automatically backfire in case you attempt to place it on top of any trap and apply its damage and stun to the invoker
    • Fixed the bug that would sometimes cause the game to crash when fighting t-lings in DC
    • Fixed the bug that caused the Expose Weakness tooltip to sometimes show the wrong reduction value when specced into it
    • Fixed transition problems with the rocks gap on the Forsaken Island
    • Fixed the exploit that allows Forcefield and some other abilities to be used to determine if there are hidden NPCs on targeted tiles
    • Hyperallergenic will now also trigger when consuming psi boosters
    • Fixed the bug that caused a certain popular NPC to kill you in the end for no reason
    • Industrial bots are now immune to immobilization
    • Fixed the bug that caused knife to be invisible when wearing a riot armor with a shield and a cloak
    • Fixed the bug that caused chemical destabilization to expire before the damage over time effects (such as acidic entanglement) are applied for that turn; from now on, when resolving a turn, all damage over time effects will be applied before affecting the expiration of any status effect
    • Fixed the bug that caused the cameras to sometimes not detect your various thieving shenanigans (such as the case sometimes was in Ray's shop).
    • You can no longer decapitate the last boss
    • Fixed the bug that caused the keybindings to stop working when the map window is closed (by dialog or opening a container, for example) while you're entering a custom note
    • Fixed the bug that would cause the crawlers and deathstalkers to subtley hint at their future hiding location when escaping by using the ceiling
    • Fixed hostilities with Gorksy in CC propagating to SGS even when they shouldn't
    • Fixed a bug in Foundry prison where erasing security footage didn't prevent hostilities with the rest of the settlement in certain cases
    • [Expedition] Fixed the bug that allowed the special ability of a certain unique armor to be turned on even when not wearing it
    • [Expedition] Fixed the bug that caused Razor to become invisible when using the shotgun
    • [Expedition] Fixed the bug that would cause multiple paranormal entities to spawn from a certain corpse instead of just one
    • [Expedition] The expedition will now leave the items from the player's locker behind upon undeployment
    • [Expedition] Fixed Ethan being able to teach the players temporal manipulation abilities without them having psi empathy
    • [Expedition] Fixed a certain agent not recognizing you gave him Something Important(tm) in certain instances
    • [Expedition] Fixed some minor ending slides issues
    • [Expedition] Fixed an instance in which a certain kidnapping event can occur even when it shouldn't
    • [Expedition] Fixed a scripting bug that in some instances caused a transition error when entering the Arch Island docks map
    • [Expedition] Fixed being able to get a new mission even after being fired from the expedition
    • [Expedition] Fixed a group of sec-troopers appearing inside an important building in the camp when they shouldn't
    • [Expedition] Fixed Seeger sometimes hanging out in front of the Arch Island Keep when he should be in his tent
    • [Expedition] Fixed an issue with certain attacks occurring even after the defenders have left the Black Sea
    • [Expedition] Fixed the bug that caused the crash after completing the Crimson Horticultural Center (potentially can be triggered on other points during the course of the main quest)
    • [Expedition] Fixed being able to kill a certain man hanging out in the Dominating Bar in Core City with gas grenades, traps, etc.
    • [Expedition] Choosing to destroy a certain robot in Lemurian Health Center no longer breaks the quest
    • [Expedition] Fixed the bug that prevented the Sormirbaren Ballistas to not be able to detect you fully on their own
    • [Expedition] Increased the range of Sweep attack to at least match the range of regular spear attacks
    • [Expedition] Plasma mines will now have the proper explosion radius of 2, instead of 3
    • [Expedition] Fixed the bug that caused Shield Bash (and possibly some other special melee attacks) to use the current weapon crit chance and bonus stats
    • [Expedition] Shotgun will no longer trigger Ambush since it's not a single target weapon
    • [Expedition] Opportunist will no longer trigger on sea snakes
    • [Expedition] You can no longer mount jet skis while immobilized
    • [Expedition] Fixed bunch of locust hives that were inaccessible for melee attacks (this will not affect the current playthroughs in which you've already visited the area of the hive)
    • [Expedition] Fixed the bug that prevented the paranormal phenomena in certain graveyard to chill out if you leave the area for a while
    • [Expedition] Fixed a bug with a certain kidnapping event which was introduced in 1.0.1.13 experimental
    • [Expedition] Fixed a certain captain's visitor coexisting in two places at once
    • [Expedition] Fixed the certain infinite trading profit bug that was available to the master merchants
    • [Expedition] Psycho-temporal Contraction will no longer be affected by armor penalty on following turns
    • Various minor dialog and map fixes

Hotfix 1.1.1.1

Release Date: 1 November 2019 Summary: Bugfix
  • Bugs
    • Fixed the bug that caused a certain special random event to occur way early in the game

Hotfix 1.1.1.2

Release Date: 4 November 2019 Summary: Bugfixes
  • Bugs
    • Fixed the bug that caused the the Core City area where the Coretech entrance is to slow down over time and later cause a transition error when attempting to enter it
    • Fixed the bug that caused the transition error when attempting to enter one of the new early game dungeons through certain transitions
    • Fixed Praetorian Guardian model and gear not updating
    • Fixed the energy and chemical pistol animation bugs on new models added in 1.1.1.0
    • [Expedition] Fixed a bug with camp supply depletion introduced in 1.1.1.0

Hotfix 1.1.1.3

Release Date: 7 November 2019 Summary: Tweaks, Bugfixes
  • Tweaks
    • [Expedition] Added an alternative way to reach the Nexus through a certain fetid place
    • [Expedition] A certain end-game faction will now also provide free shotgun shell packages if Expedition is installed
  • Bugs
    • Fixed the bug that caused some female JKK officers to become invisible
    • Fixed the bug with the vanishing powder grenade not working correctly
    • [Expedition] Fixed a crash when entering the expedition docks zone
    • minor dialog and map fixes

Hotfix 1.1.1.4

Release Date: 14 November 2019 Summary: Bugfixes
  • Bugs
    • Fixed Jawbone crossbow tooltip
    • Fixed the vanishing powder grenade not granting you movement points from action points... it will work fully as intended one day, I promise
    • Fixed the passage to a certain early-game dungeon not appearing in some cases
    • Fixed being unable to finish a JKK quest by killing a certain wanted man before talking to him first

Hotfix 1.1.1.5

Release Date: 16 December 2019 Summary: Bugfixes
  • Tweaks
    • Added an option to manually move the barrier at the GMS entrance in case the guard dies
  • Bugs
    • Reinforced bison leather boots will now have an icon
    • Stealing mushrooms from SGS will now be properly punished by death (the change will not affect the running play-throughs)
    • Dirty Kick will now properly add its critical damage bonus when critical hit occurs; the critical damage bonus is fixed to 100%
    • Fixed the bug that caused zone transition error when exiting a zone while a mine is exploding
    • Fixed a few more new Core City models not appearing
    • Fixed yet another reason why a certain early-game dungeon wasn't appearing
    • [Expedition] Fixed the bug that would mess up the player vision when triggering a zone transition while using a spying endoscope
    • [Expedition] Fixed Protectorate jet patrols and waterway outposts not turning hostile in certain instances
    • [Expedition] Fixed Cruzer and Razor not being present when reporting a certain mission and/or the mission not being marked as completed
    • [Expedition] Fixed Razor being present when he shouldn't be during a certain raid
    • [Expedition] Fixed Aegis jet patrols retreating to the camp prematurely in a very specific case, which disrupts a certain mission
    • [Expedition] Burning up the giant weaver web will now work properly (not just visually)
    • Minor dialog and map fixes

Hotfix 1.1.1.6

Release Date: 29 January 2020 Summary: Bugfixes (Legary branch build)
  • General
    • Added Ultra HD resolution (3840x2160) as an option
  • Bugs
    • Fixed the bug that caused some of the random dungeons to never trigger due to a bug with difficulty restriction
    • Item selling value modifier on easy difficulty changed to 100% (down from 150%)
    • Combat Stats window will now properly display tooltip text for movement points (MP)
    • Fixed the bug that caused Jookhela's cutscene to glitch when using gas grenades before the fight
    • Doppelganger attacks will now properly ignore electrical damage resistance even if it's 100%
    • Fixed the bug that caused the game to crash when attempting to fish from the ferry's north side while in northeastern waters; keep in mind that the bug will persist until you re-enter the area
    • Fixed members of a certain faction getting killed by someone other than the player counting towards the kill count attributed to the player in an end-game encounter
    • Fixed a number of end game slide bugs
    • Fixed Bogdan stepping into his own traps
    • Fixed grey army spec ops sledgehammer sprite
    • [Expedition] Fixed a zone trasition error occuring when pirates spawn at a certain flooded place
    • [Expedition] Fixed pirate allies turning hostile to the player in a very specific case during an important event at the Arch Island Keep
    • [Expedition] Traveling in a certain vessel will no longer repeat text and sound events when returning from [REDACTED]
    • Minor dialog and map fixes


Underrail 1.1.0

Release Date: 9 July 2019 (experimental branch) Summary: Game speedup, mechanics/item tweaks, graphics updates, bugfixes
  • General
    • Added the ability to speed up the game while out of combat
    • Added achievements to the GOG Galaxy version
  • Feats
    • Kneecap shot bleeding percentage no longer scales from perception, but base bleeding damage percentage changed to 125% (up from 75%)
    • New feat: Improved Unarmed Combat
  • Mechanics
    • Unarmed and fist weapon attacks now incur 140% of target's damage threshold and resistance (up from 125%)
    • Increased the damage reduction factor of resolve against neural overload
    • Resolve will now reduce the damage received from doppelgangers
    • Changed the way the burning damage stacks (in cases when it stacks) - the new burning time left equals either the time left of the existing effect or the duration of the new effect - whichever is longer; the old and the new periodic damage are adjusted so that they produce the same total damage over time; one of the major effects of this change is that you can no longer increase the amount of original damage by constantly resetting the timer
    • Separated fear effect caused by burning into a separate status effect and limited it to 2 turns regardless of how long the burning lasts (or if it's extinguished early); this will prevent the fear from lasting too long either from a long burning effect or because of the burning effect being refreshed; also this fear only occurs when a non-burning target is ignited and not when burning is being prolonged/refreshed
  • Items
    • Throwing nets now last up to 2 turns (down from 3) and have a cooldown of 4 turns (up from 3)
    • Bullets have new icons
    • Increased the chance to entangle enemies when firing acid blob pistol
    • Increased the chance to freeze enemies when firing cryo blob pistols
    • Reduced the chance to ignite enemies when firing incendiary blob pistol; the total burning damage done from igniting the target will remain the same, but will be spread over more turns (one turn per each
    • 80% of the original damage repeated)
    • Reduced the weight of chemical ammo
  • Nice Things
    • Containers that you opened once will now have darker labels
    • Organic enemies that die while burning will now be smoking and appear charred
    • HE grenades and some other explosions will leave temporary marks on the ground
    • Gas clouds will now fade in/out
    • New barrels
  • Bugs
    • Fixed the bug that would allow player to cancel leveling up without being able to reattempt it
    • Fixed the problem that caused the items to take up weird positions in the filtered inventory when the player attempted to reorder them manually
    • Cut Throat no longer bypasses stun immunities
    • Corporeal Projection feat now has a proper icon (instead of using the one from Fast Metabolism)
    • Throwing knife will now again properly play impact sounds and effects
    • Fixed the bug that caused expertise to add the damage bonus for each separate mechanical damage listed for the weapon, instead of just once (you thought I'd never find out, did you?!)
    • Fixed the hole jump crash in Institute
    • Heavyweight will now always apply before Critical Power
    • Certain giant appendages can now be hit by cryokinetic orb
    • Changed the way the cryokinetic orb shards interact with the orb impact tile so now the creatures occupying the tile can also get hit by some of them
    • Punching bags will no longer bleed when you punch them
    • Global entities (those that can travel between maps) will now also have their suspicion meter drain with time
    • Incendiary chemical pistol burning effect will now stack damage with existing burning effect
    • Fixed the Nimble bug that would in certain situation give bonus movement points
    • Various minor map and dialog bugs

Hotfix 1.1.0.9

Release Date: 22 July 2019 Summary: First Underrail: Expedition release version. Tweaks, bugfixes
  • Mechanics
    • When returning to an area after fleeing it during combat, your initiative penalty will be -1000 (up (or down?) from -10)
    • Cryokentic Orb can now counts towards fulfilling Hypothermia's psi ability requirement
  • Items
    • Lifting belt now increases carry capacity by 30, but the mechanical damage reduction is changed to 5% (down from 10%)
    • Changed the riot gear mechanical damage resistance and threshold bonuses against melee attacks to 100% (up from 75%). Will be applied retroactively.
    • Riot gear will now receive flat mechanical damage threshold of 2. Will be applied retroactively.
    • Tweaked the description of ballistic panels to better fit their use in different armors (will not be retroactively applied to already crafted items)
  • UI
    • Listed starting action and movement points in the combat stats window
  • Bugs
    • Fixed the bug that sometimes caused player to receive fear status effect (though it doesn't affect player in any way)
    • Fixed the bug that caused the item immunity effects to appear as though they are not being applied in the tooltip (darkened label) even if they were
    • Thermodynamic Destabilization no longer ignites targets on explosion when invoker doesn't have the Pyromaniac feat
    • Chill and freeze status effects will now always properly remove burning effects
    • Cryogas will no longer affect characters that are immune to chilling

Hotfix 1.1.0.10

Release Date: 23 July 2019 Summary: Bugfix
  • Bugs
    • Fixed the bug that cause the game to crash during ending slides in certain situations

Hotfix 1.1.0.11

Release Date: 26 July 2019 Summary: Tweaks, bugfixes
  • Mechanics
    • [Expedition] Combat logs will now show the number of pellets that crit in a shotgun attack
  • Items
    • [Expedition] Increased the frequency of shotgun shells in random loot table; they should be on the same level as other bullets now
    • [Expedition] Increased the chance of shotguns to drop an empty shotgun shell on attack to 50% (up from 30% which is the chance for bullets)
    • [Expedition] Increased the chance to find full and empty shotgun shell in trash
    • [Expedition] Reduced the value (cost) of regular shotgun shells a bit
    • Flares, and maybe some other items, will now display action point cost in the tooltip
  • UI
    • You can now input amount when spliting stacks
  • Bugs
    • [Expedition] Fixed Lance's skimmer having 0 battery and durability
    • [Expedition] Fixed player's jet skis getting stuck inside a spawning native boat at the entrance to JSHQ
    • [Expedition] Fixed the dialog freezing after a certain cutscene in Dude's new quest
    • [Expedition] Fixed the disappearing burning barrel in Dude's new quest
    • [Expedition] Fixed jet skis being despawned together with invading ships in certain instances
    • [Expedition] Fixed the expedition staff thinking you're a pirate when talking to them over the navcom in certain instances
    • [Expedition] The players can now report exploring Crimson Meadow even if they haven't removed the roots blocking their way to the end area
    • Fixed small global map issues
    • Made a certain invulnerable beast also unrootable
    • Fixed some minor issues with killing some of the Zone Boyz before talking To Johnny Filth
    • Helping a certain group near Foundry with their task now properly unlocks an option to save Buzzer in his quest
    • Moved one of the guards at the Protectorate embassy so that a certain door is easier to hack
    • Minor typos/map fixes

Hotfix 1.1.0.12

Release Date: 31 July 2019 Summary: Tweaks, bugfixes
  • Feats
    • Quick Tinkering - Setting traps while in combat will now cost 25 action points
    • [Expedition] Sixth Shell - will now also grant 10% (+2% per specialization) damage bonus per "shell count" buff stack; the final damage will not be changed
    • [Expedition] Spear Throw - Base damage changed to 125% (down from 150%) and damage per unit of range changed to 20% (down from 30%)
    • [Expedition] Continuum Ripple - Chance changed to 25% (down from 35%)
  • Specializations
    • Added Quick Tinkering: Action Points specialization - Decreases action point cost of setting traps using quick tinkering by 5 for each specialization point. Can be taken 5 times.
    • [Expedition] Spear Throw: Action Points - Changed action point reduction to 3 per spec point (down from 5)
    • [Expedition] Spear Throw: Damage - Increased damage per range per spec point changed to 1% (down from 2%)
    • [Expedition] Continuum Ripple: Chance per spec point changed to 2% (down from 3%)
  • Items
    • Supersteel Sheet will now grant mechanical resistance and threshold bonus against all edge melee weapons; this will not be applied retroactively to already crafted/generated armors
    • [Expedition] Vehicle parts are now counted as "crafting" item for the purpose of inventory filtering
    • [Expedition] Shotgun damage reduced by 10% (both combat and regular)
    • [Expedition] Shotgun optimal ranged changed to 4 (up from 3) (both combat and regular)
    • [Expedition] 6p Shotgun Shell (Boarshot) - each pellet now does 15% of the nominal damage (up from 14%, even though the tooltip suggested it was 13% previously) and ignores 30% of the mechanical damage resistance (up from 25%)
    • [Expedition] 12p Shotgun Shell (Houndshot) - now ignores 55% of mechanical damage threshold (down from 65%) and no longer ignores any resistance (down from 10%)
    • [Expedition] 20p Shotgun Shell (Hoppershot) - now ignores 40% of mechanical damage threshold (down from 60%)
    • [Expedition] 3p Shotgun Shell (Trainshot) - each pellet now deal 25% of the nominal damage (up from 20%), ignores 80% of mechanical damage threshold (up from 75%) and 50% of mechanical damage resistance (up from 40%)
    • [Expedition] Shotguns are now perfectly balanced and there's no need to think about it further
  • Tweaks
    • [Expedition] Limited Temporal Increment no longer affects Fatal Throw and Commando "once per turn" rules
  • UI
    • Observable object cursor will now indicate if the observable has multiple lines to show (with three dots) so you don't miss out on it
  • Bugs
    • Fixed the discrepancy between stealth detection in turn-based and real-time mode; TB should now be much closer to RT one, especially when it comes to movement
    • Fixed the bug that caused NPCs to not try to escape fire while also feared
    • Fixed a bug that sometimes caused NPCs to pass their turn trying to reactive their empty energy shields
    • Splitting items will now accept input from the numpad
    • Fixed the bug that caused a lot of random loot containers to be reseeded on entering the area
    • Fixed the bug that caused a store to be mostly emptied out due to some new shipments
    • Updated some old barrels
    • Fixed Vera's infinite money glitch
    • Fixed Arda's mercantile check (it checked base value instead of modified)
    • [Expedition] Temporal Distortion will now properly break incapacitation/freeze
    • [Expedition] Fixed the bug that caused a shotgun attack to always be reported as a crit when only a single pellet hit the target
    • [Expedition] Fixed the bug that caused the combat shotgun currently being crafted to indicate it can burst as many shots as your current shotgun weapon if it's equipped
    • [Expedition] Fixed some dialogue branching issues after rescuing a certain important person and talking to them afterwards
    • [Expedition] Fixed being able to repeatedly report to Professor Oldfield about the Crimson Meadow Horticulture Center
    • [Expedition] Fixed Cruzer not appearing during the Rig mission report in a certain instance
    • [Expedition] Fixed the muties getting angry at the player too early for not delivering them the promised medications
    • [Expedition] Fixed a certain person not towing a certain vessel if told to do so over the navcom
    • [Expedition] Fixed a bug with the professor not following you in a certain instance
    • Various minor dialog and map fixes

Hotfix 1.1.0.13

Release Date: 14 August 2019 (experimental) Summary: Tweaks, bugfixes
  • Tweaks
    • Fence door made a bit easier to click
    • Reduced the maximum combat and movement speed up while in turn-based mode to 500% (down from 1000%) to avoid it glitching out some abilities
  • UI
    • You will now see which targets qualify for Ambush feat proc based on their and your current location. The indicator will be placed left of the target's health bar.
  • Items
    • Changed the value of .44 JHP bullet to 52 (up from 20). No idea why it was so cheap before.
    • Fishing rod made a bit easier to click
    • Fishing rod's range has also been increased, making it possible to fish from some elevated platforms
    • Dismantling the fishing rod will now be done by right clicking and choosing that option
  • Bugs
    • You will no longer be able to export your character while riding a vehicle
    • When casting electronic imprint on a "melee" trap, such as bear or blob trap, the trap will no longer jump to your location to trap you, but instead be destroyed in a regular manner; However, in addition to this, the electronic imprint will also automatically backfire in case you attempt to place it on top of any trap and apply its damage and stun to the invoker
    • Fixed the bug that would sometimes cause the game to crash when fighting t-lings in DC
    • Fixed the bug that caused the Expose Weakness tooltip to sometimes show the wrong reduction value when specced into it
    • Fixed transition problems with the rocks gap on the Forsaken Island
    • Kareem and Freddy now also sell fish
    • [Expedition] Fixed the bug that allowed the special ability of a certain unique armor to be turned on even when not wearing it
    • [Expedition] Fixed the bug that caused Razor to become invisible when using the shotgun
    • [Expedition] Fixed the bug that would cause multiple paranormal entities to spawn from a certain corpse instead of just one
    • [Expedition] The expedition will now leave the items from the player's locker behind upon undeployment
    • [Expedition] Fixed Ethan being able to teach the players temporal manipulation abilities without them having psi empathy
    • [Expedition] Fixed a certain agent not recognizing you gave him Something Important(tm) in certain instances
    • [Expedition] Fixed some minor ending slides issues
    • [Expedition] Fixed an instance in which a certain kidnapping event can occur even when it shouldn't
    • minor dialog and map fixes

Hotfix 1.1.0.14

Release Date: 10 September 2019 (experimental) Summary: Tweaks, bugfixes
  • Tweaks
    • The player can now ask Quinton for another set of putrefying bolts in case they used them up and still haven't managed to finish the quest
  • Bugs
    • Fixed the exploit that allows Forcefield and some other abilities to be used to determine if there are hidden NPCs on targeted tiles
    • Hyperallergenic will now also trigger when consuming psi boosters
    • Fixed the bug that caused a certain popular NPC to kill you in the end for no reason
    • Industrial bots are now immune to immobilization
    • Fixed the bug that caused knife to be invisible when wearing a riot armor with a shield and a cloak
    • [Expedition] Fixed the bug that caused the crash after completing the Crimson Horticultural Center (potentially can be triggered on other points during the course of the main quest)
    • [Expedition] Choosing to destroy a certain robot in Lemurian Health Center no longer breaks the quest
    • [Expedition] Fixed the bug that prevented the Sormirbaren Ballistas to not be able to detect you fully on their own
    • [Expedition] Increased the range of Sweep attack to at least match the range of regular spear attacks
    • [Expedition] Plasma mines will now have the proper explosion radius of 2, instead of 3
    • [Expedition] Fixed the bug that caused Shield Bash (and possibly some other special melee attacks) to use the current weapon crit chance and bonus stats
    • [Expedition] Shotgun will no longer trigger Ambush since it's not a single target weapon
    • [Expedition] Opportunist will no longer trigger on sea snakes
    • [Expedition] You can no longer mount jet skis while immobilized
    • [Expedition] Fixed bunch of locust hives that were inaccessible for melee attacks (this will not affect the current playthroughs in which you've already visited the area of the hive)
    • [Expedition] Fixed the bug that prevented the paranormal phenomena in certain graveyard to chill out if you leave the area for a while
    • [Expedition] Fixed a bug with a certain kidnapping event which was introduced in 1.0.1.13 experimental
    • [Expedition] Fixed a certain captain's visitor coexisting in two places at once
    • Various minor dialog and map fixes

Older versions

For older versions, see Version history/Underrail 1.0.
For older versions, see Version history/Beta.
For older versions, see Version history/Alpha.
For older versions, see Version history/Pre-alpha.