OpenArena is a community-produced deathmatch FPS based on GPL idTech3 technology. There are many game types supported including Free For All, Capture The Flag, Domination, Overload, Harvester, and more. There are 17 unique player models to choose from and 12 weapons.
License squabbles centering around a certain contributor's texture pack leaves OA 0.8.0 into a risky legal territory. As a result, the latest 0.8.0 releases are pulled.
Posted by leilei on Sep 19th, 2008
Long story short, a contributor contributed textures derived from non-Free textures from cgtextures.com and said it was "okay". Repeatedly. He also said the cgtextures admin said it was okay too but that's probably from a personal message.
Later on this contributor ultimately left the forum with insults. The admin of cgtextures.com has stated that the textures to be used under a GPL license a month too late.
When OA 0.8.1 will release is unknown at this point. (another huge release, unfortunately)