Notes:

This are my experiences with (installing) ut on linux, read it, and enjoy Unreal Tournament.
Tested only on my machine, so have a look at my config.

• GNU/Linux Debian unstable
• XFree 4.x with Windowmaker
• Geforce4 (geforce2 did it too)
• AMD XP 1800
• My XF86Config-4

Requirements:

• (Windows) UnrealtTournament CD, or a copy of it
• Loki installer:
  • for the blue Unreal Tournament CD download ut-install-436.run
  • for the GOTY Edition Unreal Tournament CD download ut-install-436-goty.run
• at least Pentium II
• 3D accelerator card ... (maybe the ATI cards will do it too, as they support S3 texture decompression now)
• XFree86 version 3.3.5 or newer; 16-bit color
• 64 MB required; 128 MB recommended
• OSS compatible sound card
• Minimum 550 MB free space

Install UnrealTournament

1. Put the CD in the drive
2. Run the Installscript:
   
   # /path/to/ut-install-436-goty.run
3. If the Installation is finished, press "exit"
4. Go into the <INSTALLDIR>/Maps directory
5. Delete all *.uz files
6. Copy the content of the "Maps" folder from a Windows or Wine installation back to <INSTALLDIR>/Maps
   (linuxinstaller is buggy and does not extract the map files)
7. Edit ~/.loki/ut/UnrealTournament.ini
   (if there is no ~/.loki folder, run ut to create one)

   For OpenGL:

   [Engine.Engine]
   GameRenderDevice=OpenGLDrv.OpenGLRenderDevice
   WindowedRenderDevice=OpenGLDrv.OpenGLRenderDevice
   RenderDevice=OpenGLDrv.OpenGLRenderDevice

   For SDL: (default)

   [Engine.Engine]
   GameRenderDevice=SDLGLDrv.SDLGLRenderDevice
   WindowedRenderDevice=SDLGLDrv.SDLGLRenderDevice
   RenderDevice=OpenGLDrv.SDLGLRenderDevice
   
   
   If possible use the OpenGL driver, I'm running fine with them.
   
   
8. Open a terminal and type:
   
   
   $ ut
   
   ENJOY UNREALTOURNAMENT

Related Links:

Lokigames (developers of the linux-binaries)
OpenUT
Abfackelns Server tilities for Unreal Tournament
CaveUT
Linux Gamer's FAQ