Day One: Garry's Incident

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Day One: Garry's Incident
Day One Garry's Incident Cover.png
Release dates
September 25, 2013
Day One: Garry's Incident at SteamDB
 Day One: Garry's Incident at Wikipedia

General information

More information Steam Community Discussions
More information Official website
More information Game manual


Source DRM Notes Keys
GamersGate DRM-free
Steam Availability Table Icons - Steam.svg

Game data[edit]

Configuration file(s) location[edit]

Windows <path-to-game>\UDKGame\Config\
Information Video settings are located in UDKEngine.ini.

Save game data location[edit]

Windows <path-to-game>\Binaries\Win32\*.sav

Game data[edit]

Save game cloud syncing[edit]

System Native Notes
Steam Cloud No native support

Video settings[edit]

Video settings.
Advantage Eleven new toggles in video settings have been added since launch due to player demand.
Disadvantage Many of them either don't do anything or have cryptic names with no explanations.
Graphics option Option Notes
Widescreen resolution Native support Some resolutions not listed; see Widescreen resolution.
Multi-monitor Unknown
Field of view (FOV) Native support Use 0 and 9 to change FOV. See Field of view (FOV) for a permanent fix.
Windowed Native support F11 or Alt+ Enter toggles between full screen and windowed modes.
Borderless fullscreen windowed No native support
Anisotropic filtering (AF) Hackable The game defaults to 4 samples. See Anisotropic filtering (AF).
Anti-aliasing (AA) Hackable Off by default. See Anti-aliasing (AA).
Vertical sync (Vsync) Native support
60 FPS Native support
120+ FPS Hackable Frame rate is limited to 62 FPS; see High frame rate.

Widescreen resolution[edit]

Disadvantage In the Graphics Options the game allows a choice of pre-set resolutions. It does not populate this list bast on the modes supported by your system. It is possible to use less common resolutions such as 2048x1152 by editing a config file.

Fix Adjust game resolution by editing UDKGame.ini

  1. Locate UDKEngine.ini in <path-to-game>\UDKGame\Config\ and open it with a text editor.
  2. In the [SystemSettings] section find ResX= and RexY= and change them to the desired vertical and horizontal resolution.
Disadvantage Making any changes through the game's Graphics Options will overwrite these custom values.

Field of view (FOV)[edit]

Information FOV can be adjusted within the game using 0 and 9 keys. However, it is reset back to its default of 90 upon reload or death.[1]

Fix Permanent FOV fix by editing UDKGame.ini

  1. Locate UDKGame.ini in <path-to-game>\UDKGame\Config\ and open it with a text editor.
  2. In the [UTGame.UTPlayerController] section locate OnFootDefaultFOV=90.000000 and change to the desired value.

Anisotropic filtering (AF)[edit]

Fix Adjust AF by editing UDKGame.ini

Information The game defaults to AF of 4. This can be increased to 8 or 16 to eliminate blurring of textures at sharp angles to the camera.
  1. Locate UDKEngine.ini in <path-to-game>\UDKGame\Config\ and open it with a text editor.
  2. In the [SystemSettings] section find MaxAnisotropy=4 and change to the desired value. Valid values are 1, 2, 4, 8 and 16.

Anti-aliasing (AA)[edit]

Disadvantage In Graphics Options the game has two toggable settings: MaxMultiSamples and bAllowD3D9MSAA. The first one toggles MaxMultiSamples= between 0 and 1, and the second toggles bAllowD3D9MSAA= between True and False in UDKGame.ini. Unfortunately, no combination of these toggles enables Anti-aliasing.

Fix Adjust AA by editing UDKGame.ini

  1. Locate UDKEngine.ini in <path-to-game>\UDKGame\Config\ and open it with a text editor.
  2. In the [SystemSettings] section find MaxMultiSamples= and change to the desired value. Valid values are 1, 2, 4, and 8.
  3. Locate bAllowD3D9MSAA= in the same section and change to True.
Disadvantage Changing anything in the Graphics Options within the game will turn off Anti-aliasing.

High frame rate[edit]

Fix Raise frame rate smoothing

  1. Navigate to configuration file(s) location.
  2. Open the UDKEngine.ini with a text editor.
  3. Search MaxSmoothedFrameRate. Best value should be your monitor refresh rate +2 so e.g. with 144hz monitor value should be 146. Change configs value to this. There may be multiple instances so change them all.
  4. Save file.
Information For more information, see the Unreal Engine 3 page.

Input settings[edit]

Keyboard and mouse Native Notes
Remapping Native support Cannot bind mouse buttons to actions.
Mouse acceleration No native support Mouse acceleration is turned off.
Mouse input in menus Unknown
Mouse Y-axis inversion Unknown
Controller support Native support
Full controller support Unknown
Controller remapping Unknown
Controller Y-axis inversion Unknown

Audio settings[edit]

Audio settings.
Audio options Native Notes
Separate volume controls Native support Music, effects and voice sliders.
Surround sound Unknown
Subtitles No native support
Closed captions No native support
Mute on focus lost Native support

VR support[edit]

3D modes Native Notes
Native 3D Unknown
Nvidia 3D Vision Hackable See Helix Mod: Day One: Garry's Incident.
TriDef 3D Unknown
iZ3D Unknown

Issues fixed[edit]

Restoring lost saved games[edit]

Fix Adding saves to UDKSaveFile.ini


Information A 9/29/2013 update to the Steam version of the game made the game lose track of previously saved games. The saved game files are still there, however, the game does not see them because UDKSaveFile.ini was either overwritten or deleted with the update.
  1. Find the desired .sav file located in <path-to-game>\Binaries\Win32\. The latest saved game file could be identified by sorting the folder by date modified.
  2. Locate UDKSaveFile.ini in <path-to-game>\UDKGame\Config\.
  3. Make a backup of the file in case the original needs to be restored.
  4. If UDKSaveFile.ini does not exist at the above location, start the game, click Options, then Graphics and then click Apply. This will create the file.
  5. Open the file in a text editor and add
    line to the end of the file, replacing <filename> with the file name you found in step 1. Do not include the .sav at the end. The newly added line should look something like
  6. Start the game and click on Load Game.
  7. The recovered save will appear as Day OneSavegame.
  8. Load the saved game and save again to make sure a proper saved game record is created.

Out of memory error[edit]

Fix Increase user address space on 32 bit windows[2]

Information This error typically happens when exiting the temple.
Information By default a process can't address more than 2 GB of memory on 32 bit windows. This limit can be raised to 3 GB using this command.
  1. Right click on command prompt.
  2. Select Run as administrator.
  3. Type bcdedit /set IncreaseUserVa 3072 and press Enter.
  4. Restart computer.

Disable mouse smoothing[edit]

Fix Disable mouse smoothing by editing UDKInput.ini

  1. Locate UDKInput.ini in <path-to-game>\UDKGame\Config\ and open it with a text editor.
  2. In the [Engine.PlayerInput] section locate bEnableMouseSmoothing=true and change it to false.

System requirements[edit]

Minimum Recommended
Operating system (OS) XP, Vista, 7, 8 Vista, 7, 8
Processor (CPU) 2.2 GHz dual core 2.8 GHz quad core
System memory (RAM) 4 GB 8 GB
Hard disk drive (HDD) 3 GB 3 GB
Video card (GPU) GeForce GTX 260
896 MB of VRAM
DirectX 9.0c compatible
GeForce GTX 570
1 GB of VRAM
DirectX 9.0c compatible
Sound (audio device) DirectX compatible DirectX compatible