QuArK runs pretty well on Linux systems, given a bit of patience. Here's how to get started.

Wine (Wine Is Not an Emulator) is a nifty bit of programming that allows for Windows binaries to run on a Linux/Unix platform through the use of a compatibility layer. This extra layer of programming lies between the binaries and the operating system, and it 'tricks' the executable into thinking it is running on a Windows machine. If you don't have Wine, you'll need to obtain it from http://winehq.com. I used Wine release 20030911, but any of the newer versions will work. Wine release 20031118 is the most recent version at the time of this writing. Of course, you will need Wine to be compiled with OpenGL support, both for QuArk to display the OpenGL 3D window. This article at Linuxgames.com is the best I know of for compiling Wine with OpenGL support, and I am not going to take the time to re-write what has already been written (the article also explains how to install Half-Life).

After following the above steps, you should have a working Wine install with OpenGL compiled and functioning. There are many versions of QuArk available, and most if not all will work with Wine. The one issue is that versions are available with an installer (.exe), or as a zip archive (.zip). The installer that comes with QuArk 6.4 does not work with Wine. The zip archive are simply a zipped up copy of the QuArk file tree, and these work perfectly. Some older versions of QuArk will work as well, but may require a separate download of Python.

If you need to download Python separately, ignore the link for  python1.5b.exe  given on the QuArK home page. The installer does not work with Wine. Instead you'll need the full Python 1.5.2 libraries from the official Python website.

QuArK 6.4:

Open a terminal window and unzip the the file to the desired location.

$ unzip quark-win32-.zip

QuArK 6.3.0:

Open a terminal window, move to the directory you downloaded the file to, and run the installer.

$ cd /path/to/quark
$ wine quark_v6.3.0.EXE

You can put the file tree anywhere you want, but it is probably easiest to place it in your Wine 'C' drive.

A note regarding running QuArk. Currently, it seems that the only way to run QuArk and have it function correctly is to cd into the install directory in a terminal and run the executables by hand.

Example: My Wine directories are located in my  /home  folder under Wine.

To run QuArk:

cd /home/slight/Wine/C/QuArk\ 6.3/
wine QuArk.exe	

This is the case with many applications run under Wine.