Graphics Options

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The graphical options of the game may be edited by going to the main menu by pressing escape and clicking on on "Options", then "Graphics".

In case you need to edit the preferences manually (e.g. because you are not able to even enter the main menu due to problems with the graphics settings), look at the parts below.

Graphics Options

In the "Graphics" menu, you can make the following settings:

  • Resolution
  • Filtering
    • The game looks best with FSAA (Full Scene Anti-Aliasing) turned on. Enable this with setting "Filtering" tu "Multisampled". This requires a modern gfx card with multisampled framebuffer support.
    • Supersampling runs the game at 2x the resolution of your game window. This produces wonderfully filtered graphics, but can tax graphics cards heavily.
  • Toggle Window/Fullscreen mode

Alternatively, you can enable FSAA by opening your system's graphics preferences (NVIDIA or Radeon etc.) and setting anti-aliasing to be on for all games.

Note: On some systems the Anti-Aliasing option actually makes the game look much worse, with strong vertical and horizontal glitch lines appearing on the grid of the world. On NVIDIA systems you can solve this by setting Alpha channel supersampling to the max value.

Editing Graphics Options Manually

To edit the settings for the game you need to edit the preferences.txt file directly. The easiest way to find this is to run the game and click on "Open Save Folder" from the main menu. This will open the location of your preferences file, your debug log, and your save games.

The typical location of your preferences file will be:

  • Windows Vista, 7, and 8: C:\Users\your-username\AppData\Local\Introversion\Prison Architect
  • Windows XP: C:\documents and settings\your-username\local settings\application data\introversion\prison architect\
  • Mac OS X: ~/Library/Application Support/Prison Architect (in Finder press Command + Shift + G and paste that in)
  • Linux: ~/.Prison Architect

Set the screen resolution by editing the values for ScreenW, ScreenH, and ScreenWindowed:

ScreenW  1280
ScreenH  1024
ScreenWindowed  true

Note: You can set the width and height to 0 to make PA run fullscreen (or borderless windowed, if you have windowed enabled) at your native resolution.

Enable FSAA this way:

ScreenMultiSampled true

Enable Supersampling like this:

ScreenSuperSampled true