1、游戏引擎
Ogre3D游戏引擎
http://www.ogre3d.org/
Quake3游戏引擎
http://www.ioquake3.org/
http://www.vorbis.com/
http://www.libsdl.org/
Irrlicht游戏引擎
http://irrlicht.sourceforge.net/
Crystalspace3D游戏引擎
http://www.crystalspace3d.org/main/Main_Page
Sylphis3D 游戏引擎
http://devnet.sylphis3d.com/
更多3D引擎参考List of game engines
2、游戏
http://red.planetarena.org/
http://tremulous.net/
http://www.wesnoth.org/
http://www.globulation2.org
http://www.urbanterror.net/
http://www.worldofpadman.com/
http://www.scorched3d.co.uk/
http://maniadrive.raydium.org/
http://www.planeshift.it/
只整理一些较大的在架构实现上值得借鉴的游戏,更多右下参看100 of the Best Legal Free Full Version Games You Can Download Online
3、社区
http://www.devmaster.net/
http://freegamer.blogspot.com/
http://www.gamedev.net
http://www.replays.net
4、参考资料
http://en.wikipedia.org/wiki/List_of_game_engines
http://membres.lycos.fr/frochet/3d_engine_list.htm
http://www.cnblogs.com/cyberchen-net/archive/2007/03/04/663597.html
100 of the Best Legal Free Full Version Games You Can Download Online
http://games.slashdot.org/article.pl?sid=07/04/06/1638232