OpenArena (short form: OA) is a free (as in freedom) network enabled multiplayer first person shooter based on the ioquake3 fork of the id tech 3 engine. It aims to be a free software clone of Quake III Arena, retaining its gameplay while replacing the proprietary content with brand new free (as in freedom, again) content. OpenArena is released under GNU General Public License v2.0 (GPLv2). It is developed by the OpenArena Team.
