Phoronix: Sauerbraten CTF Edition

Formerly known as Cube, Sauerbraten is an open-source first person shooter game built upon the Cube engine that has been entertaining gamers for years. Sauerbraten has come along way when it comes to advanced rendering features, maps / game-play modes, and other features, with a sign of these improvements being the Sauerbraten 2008-06-17 CTF Edition release. As implied by its name, this most recent release of Sauerbraten introduces a capture the flag game-mode. In addition to the CTF gaming support, there are many other improvements and new features, with this being the first update since the end of 2007.

http://www.phoronix.com/vr.php?view=12516