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Arx Fatalis

From PCGamingWiki, the wiki about fixing PC games
Arx Fatalis
Arx Fatalis cover
Arkane Studios
JoWood Productions
Current Bethesda Softworks
Release dates
Windows June 28, 2002
Monetization One-time game purchase, Subscription gaming service
Modes Singleplayer
Pacing Real-time
Perspectives First-person
Controls Direct control
Genres Immersive sim, RPG, ARPG
Themes Fantasy
Arx Fatalis on HowLongToBeat
Arx Fatalis guide on StrategyWiki
Arx Fatalis on MobyGames
Arx Fatalis on Wikipedia

General information

Arx Libertatis Wiki Community Discussions Support Page
Steam Community Discussions


Source DRM Notes Keys OS
Disc check (requires the CD/DVD in the drive to play)
Patched to 1.21.
Microsoft Store
DRM-free after installation through Microsoft Store client (notes may include more details)
DRM-free after being copied to any other folder.
Included in Xbox Game Pass for PC
DRM-free after installation through Steam client (notes may include more details)
Patched to 1.21.
Windows (unavailable)
DRM-free after installation through Launcher (notes may include more details)
Patched to 1.21.
A demo is available from Steam.


Type Notes
One-time game purchase The game requires an upfront purchase to access.
Subscription gaming service Available via Xbox Game Pass for PC.

Essential improvements


Arx Fatalis Patch 1.21 (2011) fixes some issues with running the game on modern systems. This patch will update any version; no previous patch is required.

Digital distribution versions usually include this patch but disc versions do not.

Arx Libertatis port

Arx Libertatis is a modern port for Windows and Linux that fixes numerous issues (install Arx Fatalis Patch 1.21 first if using a disc version).

Steam Play / Luxtorpeda (Linux only)

If you own the game via Steam you can use the community Steam Play compatibility tool Luxtorpeda[1] for easier integration with Steam and simpler setup
Install Luxtorpeda[2]
  1. Close Steam
  2. Download latest version from Luxtorpeda GitHub
  3. Open ~/.local/share/Steam/
  4. Create folder compatibilitytools.d and open it
  5. Unpack the downloaded archive here
  6. Start Steam.
  7. In game properties window select Force the use of a specific Steam Play compatibility tool
  8. Select Luxtorpeda.

Notes Luxtorpeda will install into and use Arx Libertatis from the Steam game folder but not install the port system wide

HD Textures - Arx Neuralis

Original game textures upscaled with neural networks. All game textures are upscaled. Download on Nexus or ModDB

Game data

Configuration file(s) location

System Location
Windows <path-to-game>\cfg_default.ini[Note 1]
Microsoft Store
Steam Play (Linux) <Steam-folder>/steamapps/compatdata/1700/pfx/[Note 2]
Arx Libertatis settings are stored in %USERPROFILE%\Saved Games\Arx Libertatis\cfg.ini

Save game data location

System Location
Windows <path-to-game>\Save[Note 1]
Microsoft Store
Steam Play (Linux) <Steam-folder>/steamapps/compatdata/1700/pfx/[Note 2]
Arx Libertatis saves are stored in %USERPROFILE%\Saved Games\Arx Libertatis\save

Save game cloud syncing

System Native Notes
GOG Galaxy
Steam Cloud
Xbox Cloud


Video settings.
Video settings.

Graphics feature State WSGF Notes
Widescreen resolution
Requires Arx Fatalis Patch 1.21. See Widescreen resolution.
Use Arx Libertatis.
Use Arx Libertatis.
4K Ultra HD
Field of view (FOV)
Use Arx Libertatis. Has 10 increments up by a value of 5° from 75° to 125°.
See Windowed.
Borderless fullscreen windowed
Use Arx Libertatis with Borderless Windowed.
Anisotropic filtering (AF)
Force in graphics card control panel or use Arx Libertatis (enabled by default).
Anti-aliasing (AA)
Forcing in the graphics card control panel will cause Invisible text.
Vertical sync (Vsync)
Use Arx Libertatis (enabled by default).
60 FPS
120+ FPS
Arx Libertatis has no frame rate cap.

Widescreen resolution

Some resolutions may not work when selected in-game but can still be used by editing cfg_default.ini directly.
Set unsupported resolution in cfg_default.ini[3]
  1. Go to the configuration file(s) location.
  2. Open cfg_default.ini (cfg.ini if using Arx Libertatis).
  3. Set resolution= to match the resolution you want.
  4. Save your changes. The in-game setting may show 640x480 but the manual resolution will still be used.


Changing video settings in-game may reset the resolution change. Repeat these steps if necessary.
If problems persist use Arx Libertatis.


Enable windowed mode[citation needed]
  1. Go to the configuration file(s) location.
  2. Open cfg_default.ini (cfg.ini if using Arx Libertatis).
  3. Change full_screen=1 to full_screen=0
  4. Save your changes. Reverse this change to go back to fullscreen mode.


Arx Fatalis has a fixed-size window; for a resizeable window use Arx Libertatis.


Input settings.
Input settings.

Keyboard and mouse State Notes
Mouse acceleration
None by default. Arx Libertatis allows this to be enabled, as well as having the option to enable raw mouse input (to bypass Windows desktop mouse acceleration) in the options menu.
Mouse sensitivity
Mouse input in menus
Mouse Y-axis inversion
Controller support


Audio settings.
Audio settings.

Audio feature State Notes
Separate volume controls
Master, SFX, Speech and Ambience sliders.
Surround sound
Up to 7.0 output with DirectSound3D restoration software, or OpenAL Soft if using Arx Libertatis
Conversations and cutscenes only; all other speech has no subtitles.
Closed captions
Mute on focus lost
EAX support
EAX 2. Disabled by default. Required EAX Unified[4] before patch 1.21[5]
Royalty free audio
Arx Libertatis replaces deprecated DirectSound3D API with OpenAL Soft, which can be used for binaural HRTF mixing.[6] No EAX reverb calls are used in-game.


Language UI Audio Sub Notes
Traditional Chinese
Not available on Steam.
Not available on Steam.
Fan translation, download.
Fan translation, download.
Fan translation, download.

VR support

3D modes State Notes
Game is not on official list but on the factory profile list, so its not clear wherether its a user created or official profile. To get the game running you first need to install the original, then patch 1.2 and Arx Liberatis.

Issues fixed

HUD doesn't scale at higher resolutions

Arx Fatalis 1.21 interface elements are very small at higher resolutions.
HUD scaling[citation needed]

Use Arx Libertatis

Invisible text

This is caused by forcing anti-aliasing through your video card's control panel.
Use Arx Libertatis[citation needed]

Use Arx Libertatis.

Set application controlled anti-aliasing[7]
  1. Go to the video card control panel.
  2. Set anti-aliasing to "application-controlled".
  3. Enable anti-aliasing in-game (optional).

Other information


Technical specs Supported Notes
Direct3D 7
Executable 32-bit 64-bitARM Notes
Use Arx Libertatis for 64-bit.
macOS (OS X)
Use Arx Libertatis.[8]
Use Arx Libertatis.

System requirements

Minimum Recommended
Operating system (OS) 98
XP (Steam)
Processor (CPU) 500 MHz Pentium III or compatible
System memory (RAM) 64 MB
Hard disk drive (HDD) 750 MB
Video card (GPU) 16 MB of VRAM
DirectX 8 compatible
Sound (audio device) DirectX 8 compatible
Other 4X CD-ROM


  1. 1.0 1.1 When running this game without elevated privileges (Run as administrator option), write operations against a location below %PROGRAMFILES%, %PROGRAMDATA%, or %WINDIR% might be redirected to %LOCALAPPDATA%\VirtualStore on Windows Vista and later (more details).
  2. 2.0 2.1 File/folder structure within this directory reflects the path(s) listed for Windows and/or Steam game data (use Wine regedit to access Windows registry paths). Games with Steam Cloud support may store data in ~/.steam/steam/userdata/<user-id>/1700/ in addition to or instead of this directory. The app ID (1700) may differ in some cases. Treat backslashes as forward slashes. See the glossary page for details.