From PCGamingWiki, the wiki about fixing PC games
Antichamber cover
Alexander Bruce
macOS (OS X) Minority
Linux Minority
Unreal Engine 3
Release dates
Windows January 31, 2013
OS X February 18, 2014
Linux February 18, 2014

Key points

Developer has released his own 'Issues and temporary workarounds' guide
Only supports one save at a time.[1]

General information

Antichamber Website
Steam Community Discussions
Antichamber FAQ by Developer on Steam Community Discussions page for Antichamber


Source DRM Notes Keys OS
Humble Store

Essential improvements[edit]

Skip Unreal Engine video[edit]

Delete or rename movie file[citation needed]
  1. Go to <path-to-game>/UDKGame/Movies/
  2. Delete or rename UE3_logo.bik
Editing the configs to not load UE3_logo does not work.

Game data[edit]

Configuration files location[edit]

System Location
Windows <path-to-game>\UDKGame\Config\
macOS (OS X) <path-to-game>/
Linux $XDG_DATA_HOME/AlexanderBruce/Antichamber/UDKGame/Config/
This game follows the XDG Base Directory Specification on Linux.

Save game data location[edit]

System Location
Windows <path-to-game>\Binaries\Win32\
macOS (OS X) ~/Library/Application Support/Unreal Tournament 3/
Linux $XDG_DATA_HOME/AlexanderBruce/Antichamber/

Save game cloud syncing[edit]

System Native Notes
Steam Cloud

Video settings[edit]

Video settings.
Video settings.
Graphics option Option WSGF Notes
Widescreen resolution
Some resolutions not listed; see Widescreen resolution.
Works, if res(+fov) is changed in console.
4K Ultra HD
Field of view (FOV)
Input fov X, X being a number, in the console to change your FOV.
Borderless fullscreen windowed
Anisotropic filtering (AF)
Anti-aliasing (AA)
Vertical sync (Vsync)
60 FPS
Game physics will malfunction at high frame rates, do not recommend exceeding 60, see High frame rate.
120+ FPS
See High frame rate.

Widescreen resolution[edit]

Many common resolutions are not available on the options menu.
Edit DefaultInput.ini[2]
  1. Go to the configuration files location.
  2. Open DefaultInput.ini
  3. Search for ConsoleKey and delete the following lines:
    You can also change the ConsoleKey to anything you want. Just replace None with what you'd like it to be.
  4. Load the game and press ~ or Tab .
  5. Type setres 2560x1440 or another resolution.

High frame rate[edit]

Forces standard V-sync on regardless of in-game setting, which prevents Adaptive V-sync, causes drops to 60FPS almost constantly (aka stuttering).
Game's physics will malfunction at high frame rates, recommend capping below value to 62 (i.e. 60FPS).
Change frame rate smoothing[citation needed]
  1. Go to the configuration files location.
  2. Open UDKEngine.ini.
  3. Search and change bSmoothFrameRate to FALSE or raise MaxSmoothedFrameRate value.
  4. Save file.
For more information, see the Unreal Engine 3 page.

Input settings[edit]

Keyboard and mouse Native Notes
See Remapping.
Mouse acceleration
Mouse sensitivity
Mouse input in menus
Mouse Y-axis inversion
Controller support


Edit UDKInput.ini[1]
  1. Go to the configuration files location.
  2. Open UDKInput.ini.
  3. Under the [Engine.PlayerInput] section find Bindings=(Name="W",Command="GBA_MoveForward".
  4. Change it and the Binding=... commands near it with your preferred input keys by changing Name="[Key]".

The following commands are used:

  • GBA_Jump
  • GBA_MoveForward
  • GBA_Backward
  • GBA_StrafeLeft
  • GBA_StrafeRight
  • GBA_Jump
  • GBA_Fire
  • GBA_AltFire
  • StartTriFire

Audio settings[edit]

Audio options Native Notes
Separate volume controls
Surround sound
Closed captions
Mute on focus lost


Language UI Audio CC Notes

VR support[edit]

3D modes Native Notes
Native 3D
Nvidia 3D Vision
TriDef 3D

Issues unresolved[edit]

Crash when drawing loops or cubes[edit]

From the developer: "I am aware that the algorithm for this can go a bit crazy and cause the game to crash if you try to do it with large or dense structures."[2]

Issues fixed[edit]


Update PhysX[2]

Install the latest NVIDIA PhysX System Software.

Other information[edit]


Technical specs Supported Notes
Direct3D 9
OpenGL 2.0 OS X and Linux only.
Shader Model support 3
64-bit executable
OS X and Linux only.[citation needed]


Middleware Notes
Physics PhysX
Input SDL2 OS X and Linux only.
Cutscenes Bink Video

System requirements[edit]

Minimum Recommended
Operating system (OS) XP SP2, Vista, 7
Processor (CPU) 2.0+ GHz or better Dual Core
System memory (RAM) 2 GB
Hard disk drive (HDD) 1 GB
Video card (GPU) Nvidia GeForce 8000 series or higher
DirectX 9.0c compatible
Shader model 3.0 support


  1. 1.0 1.1 Antichamber FAQ - Steam Community Discussions for Antichamber
  2. 2.0 2.1 2.2 Issues and temporary workarounds - Steam Community Discussions for Antichamber