OpenArena is an open-source content package for Quake III Arena licensed under
the GPL, effectively creating a free stand-alone game.  You do not need Quake
III Arena to play this game.

OpenArena has bots, network playability, many maps and most of the other
features you would expect from a commercial first person shooter.

OpenArena requires 3D accelerated video drivers but runs quite well on the
open-source Intel drivers.

Please be advised that the main game zip file, openarena-0.8.8.zip, is about
405MB.  This file is already patched with the 0.8.8 patch.  Also, the download
site listed in the openarena.info file is a direct link, but it is sometimes
slow.  You may wish to visit the openarena homepage (openarena.ws), click on
"Downloads," and look for much faster download sites that do not offer direct
links.  Just make sure you find the full zip that includes the 0.8.8 patch.