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
macOS (OS X) Edward Rudd
Linux Edward Rudd
HPL Engine 2
Release dates
Windows September 10, 2013
macOS (OS X) September 10, 2013
Linux September 10, 2013
Amnesia: A Machine for Pigs at Wikipedia
Amnesia: The Dark Descent 2010
Amnesia: A Machine for Pigs 2013

General information

Port Report
Changelog Community Discussions for game series Support Page
"amnesia_a_machine_for_pigs" is not a number.
Steam Community Discussions
Frictional Games Forum


Source DRM Notes Keys OS
macOS (OS X)
Humble Store
Icon overlay.png
macOS (OS X)
Mac App Store
Icon overlay.png
macOS (OS X)
Icon overlay.png
macOS (OS X)

Essential improvements

Skip intro videos

Edit main_settings.cfg[citation needed]
  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 user_settings.cfg[citation needed]
  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

Configuration file and save game data location

This game does not follow the XDG Base Directory Specification on Linux.

Save game cloud syncing

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

Video settings

Basic settings
Basic settings
Advanced settings
Advanced settings
Graphics option Option WSGF Notes
Widescreen resolution
4K Ultra HD
Field of view (FOV)
See Field of view (FOV).
Window borders are hidden when running at native resolution.
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.
High dynamic range display (HDR)

Field of view (FOV)

Edit game.cfg[1]
  1. Go to <path-to-game>\config\
  2. Open game.cfg in text editor.
  3. Go to the Player_General section.
  4. Change FOV = "70" to the desired field of view value.

High frame rate

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. Change Engine LimitFPS="true" to Engine LimitFPS="false".

Input settings

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
Controller hotplugging
Haptic feedback
Simultaneous controller+KB/M

Audio settings

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

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= and change to corresponding value of sound device from launcher.log.


Language UI Audio Sub Notes
Brazilian Portuguese
Fan translation, download.

VR support

3D modes Native Notes
Nvidia 3D Vision
Use 3D Surround Gaming.

Issues fixed

Vertical camera movement only with mouse

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

Crash during startup

Disconnect any gamepads and then start the game[6]

Freeze/lag every now and then

A possible solution can be found at the official Amnesia A.M.F.P Troubleshooting Guide.[7]
Edit main settings[citation needed]
  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

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

Disable gamma changing programs such as f.lux[citation needed]

Gamma changes persist after exiting the game

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[citation needed]
  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

Strong blue haze

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.

Other information


Technical specs Supported Notes
OpenGL 2.1
64-bit executable

System requirements

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
macOS (OS X)
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