Amnesia: A Machine for Pigs

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Amnesia: A Machine for Pigs
Amnesia: A Machine for Pigs cover
The Chinese Room
Frictional Games
OS X Edward Rudd
Linux Edward Rudd
HPL Engine 2
Release dates
Windows September 10, 2013
OS X September 10, 2013
Linux September 10, 2013
Amnesia: The Dark Descent 2010
Amnesia: A Machine for Pigs 2013

General information

Port Report Community Discussions for game series Support Page
Steam Community Discussions
Frictional Games Forum


Source DRM Notes Keys OS
Humble Store

Essential improvements[edit]

Skip intro videos[edit]

Edit main_settings.cfg
  1. Go to the configuration file and save game data location.
  2. Open main_settings.cfg with a text editor.
  3. Change ShowPreMenu="true" to ShowPreMenu="false"
  4. Save the changes.

Enable quick save[edit]

Edit user_settings.cfg
  1. Go to the configuration file and save game data location.
  2. Go into <user-id> and open user_settings.cfg with a text editor.
  3. Change AllowQuickSave="false" to AllowQuickSave="true"
  4. Save the changes.


Press F4 to save and F5 to load.

Game data[edit]

Configuration file and save game data location[edit]

System Location
Windows %USERPROFILE%\Documents\Amnesia\Pig\
OS X ~/Library/Application Support/Frictional Games/Amnesia/Pig/
Linux ~/.frictionalgames/Amnesia/Pig/
Steam <Steam-folder>/userdata/<user-id>/239200/
This game does not support the XDG Base Directory Specification on Linux.

Save game cloud syncing[edit]

System Native Notes
Steam Cloud
Game saves, key binds and game settings. Graphics are saved locally.

Video settings[edit]

Basic settings
Basic settings
Advanced settings
Advanced settings
Graphics option Option WSGF Notes
Widescreen resolution
Field of view (FOV)
See Field of view (FOV).
Window borders are hidden when running at native resolution.
Borderless fullscreen windowed
See Borderless fullscreen windowed.
Anisotropic filtering (AF)
Anti-aliasing (AA)
On or off but proper AA and not FXAA.
Vertical sync (Vsync)
60 FPS
120+ FPS
Capped at 60 FPS by default; see High frame rate.

Field of view (FOV)[edit]

Edit game.cfg[1]
  1. Go to the installation folder.
  2. Go into the config folder.
  3. Open game.cfg in text editor
  4. Locate line FOV = "70" in section Player_General and change its value to your desired field of view value.

High frame rate[edit]

The game limits frame rate to 60 FPS by default.
Edit main_settings.cfg[2]
  1. Go to %USERPROFILE%\Documents\Amnesia\Pig\
  2. Open main_settings.cfg in text editor.
  3. Locate entry Engine LimitFPS="true" and change it to false.

Input settings[edit]

Input settings
Input settings
Keyboard and mouse Native Notes
Mouse acceleration
No native option, acceleration is taken from system settings.
Mouse sensitivity
Mouse input in menus
Mouse Y-axis inversion
Controller support
Full controller support
Controller remapping
Not remapping properly with the Xbox 360 Controller.[3]
Controller sensitivity
Controller Y-axis inversion
Additional information
Button prompts
Controller hotplugging
Haptic feedback

Audio settings[edit]

Audio settings
Audio settings
Game settings
Game settings
Audio options Native Notes
Separate volume controls
Only master volume slider.
Surround sound
See Surround sound for a fix.
Closed captions
Mute on focus lost
Doesn't mute when viewing journal entries.

Surround sound[edit]

Game is using old implementation of a sound system which limits output only to stereo.
Surround sound fix[4]
  1. Download OpenAL Soft (PCGamingWiki mirror).
  2. Extract archive, navigate to Win32 folder from this archive.
  3. Copy soft_oal.dll to the installation folder.
  4. Launch game launcher and navigate to the Sound options tab.
  5. There should be new Unsuported device. Select it and launch the game.

In case there is no Unsuported device:

  1. Launch game with soft_oal.dll file in the same folder as game's exe file.
  2. Quit game, navigate to %USERPROFILE%\Documents\Amnesia\Pig and open launcher.log in text editor.
  3. Locate section Initializing Sound Module. There are all available sound devices.
  4. Open main_settings.cfg from the same Main folder.
  5. Locate line <Sound Device="x"... and change x to corresponding value of sound device from launcher.log file.


Language UI Audio CC Notes
Brazilian Portuguese
A Turkish fan translation is available.

VR support[edit]

Issues fixed[edit]

Vertical camera movement only with mouse[edit]

Disconnect controller[5]
  1. Unplug your controller.
  2. Start a new game.

Crash during startup[edit]

Disconnect any gamepads and then start the game[6]

Freeze/lag every now and then[edit]

A possible solution can be found at the official Amnesia A.M.F.P Troubleshooting Guide.[7]
Edit main settings
  1. Go to %USERPROFILE%\Documents\Amnesia\Pig
  2. Open 'main_settings.cfg' in a text editor.
  3. Locate entry <Sound....
  4. Change MaxChannels="64" to MaxChannels="32".
  5. Change StreamBuffers="8" to StreamBuffers="4".
  6. Start the game and check if it worked.
  7. If not, also change StreamBufferSize="262144" to StreamBufferSize="131072".

Light halos showing through walls[edit]

Start in offline mode[8]
  1. Start steam in offline mode or disable Steam Cloud for the game.
  2. Start the game and enter Launcher Settings.
  3. Select auto-detect video device.
Alternatively remove all .ini files from the game data locations for the game and try fix again.

Adjusting in-game gamma does nothing[edit]

Disable gamma changing programs such as f.lux

Gamma changes persist after exiting the game[edit]

If the in-game gamma setting is increased, it can sometimes alter the desktop's gamma even after the game is closed.
Use f.lux to restore gamma
  1. Download and install f.lux.
  2. Run it and the desktop gamma should return to normal.
Enable Nvidia's own color settings in the Nvidia Control Panel[9]

Other information[edit]

Strong blue haze[edit]

The game has slight blue fog effect that is very apparent in the first level. This is intentional,[10] but this effect can be undesirably strong on some screens.
Edit save files[11]
  1. Launch the game and create save if you don't have one.
  2. Go to %USERPROFILE%\Documents\Amnesia\Pig\<user-id>
  3. Locate your last save and open it in text editor.
  4. Locate entry name="mbFogActive" val="true" and change true to false.
Edit shader files[12]

An alternative to the save game method is to edit the shader files. This has the advantage of being a permanent solution (instead of per-save), and it also allows you to reduce (or increase!) the effect by an arbitrary factor.

  1. Go to <path-to-game>/core/shaders
  2. Edit deferred_fog_frag.glsl.
  3. Locate entry float fAmount = max(fDepth / avFogStartAndLength.y,0.0); and change it to float fAmount = 0.0; to switch the effect off completely, or e.g. to float fAmount = max(0.25 * fDepth / avFogStartAndLength.y,0.0); to reduce the effect to 25 % of original.

System requirements[edit]

Integrated Intel HD Graphics should work but is not supported; problems are generally solved with a driver update.
Minimum Recommended
Operating system (OS) Vista 7
Processor (CPU) 2.0 GHz Core i5 2.0 GHz Core i7
System memory (RAM) 2 GB 4 GB
Hard disk drive (HDD) 5 GB
Video card (GPU) Mid-range NVIDIA GeForce 3x0
ATI Radeon HD 5x00
High-range NVIDIA GeForce 5x0
ATI Radeon HD 6x00
Minimum Recommended
Operating system (OS) 10.6.8 10.7.5
Processor (CPU) 1.3 GHz core i5 2.0 GHz core i7
System memory (RAM) 2 GB 4 GB
Hard disk drive (HDD) 5 GB
Video card (GPU) Mid-range NVIDIA GeForce 3x0
ATI Radeon HD 5x00
High-range NVIDIA GeForce 5x0
ATI Radeon HD 6x00
Minimum Recommended
Operating system (OS) Major Linux Distribution from 2010 Major Linux Distribution from 2012
Processor (CPU) 2.0 GHz core i5 2.0 GHz core i7
System memory (RAM) 2 GB 4 GB
Hard disk drive (HDD) 5 GB
Video card (GPU) Mid-range NVIDIA GeForce 3x0
ATI Radeon HD 5x00
High-range NVIDIA GeForce 5x0
ATI Radeon HD 6x00


  1. Amnesia - the dark decent mods - Se7enSins Gaming Community
  2. 120Hz support? - Frictional Games Forum
  3. Xbox controller incompatibility
  4. Tested at September 7, 2013 by User:LDK with openal-soft-1.15.1-bin version.
  5. Problem with the mouse - Steam Community Discussions
  6. Possible fix solution for crash at startup - Frictional Games Forum
  7. Amnesia A.M.F.P Troubleshooting Guide
  8. Light halos showing through walls - Frictional Games Forum
  9. Interesting bug after quiting game :: Amnesia: A Machine for Pigs General Discussions
  10. Blue haze? - Frictional Games Forum
  11. HOW-TO: Remove the BLUE FOG - Steam Community Guides
  12. Easy and definitive fix for the blue fog of death - Steam Community Discussions