From Quake Wiki
|License:||GNU GPL v2|
|Engine:||Quakeforge (2000-2003), DarkPlaces (2004-)|
Open Quartz is a Free data replacement project licensed under the GNU GPL v2. As of 2005, it is currently maintained by Toddd.
Two projects are known to derive from OpenQuartz as a base:
Many people do not like Open Quartz because of the bizarre artistic direction, such as having living trees for zombies, guns with wheels for enforcers, and replacing the classic mechanical weaponry with conventional real-life trademarked weapons.