id Tech 3

id Tech 3, popularly known as the Quake III Arena engine, is a game engine developed by id Software for their video game Quake III Arena. It has been adopted by numerous games.

At QuakeCon 2005, John Carmack announced that the id Tech 3 source code would be released under the GNU General Public License (version 2), and it was released on August 19, 2005. The code can be downloaded from id's GitHub account.


ioquake3 is a game engine project which aims to build upon the id Tech 3 source code release in order to remove bugs, clean up source code and to add more advanced graphical and audio features via SDL and OpenAL. ioquake3 is also intended to act as a clean base package, upon which other projects may be built. The game engine supports Ogg Vorbis format and video capture of demos in .avi format.

The project was started shortly after the source code release with the goal of creating a bug-free, enhanced open source Quake III engine source code distribution upon which new games and projects can be based. In addition, the project aims to provide an improved environment in which Quake III: Arena, the Team Arena expansion pack and all the popular mods can be played.Notable features added by the project include builtin VoIP support, Anaglyph stereo rendering (for viewing with 3D glasses), and numerous security fixes. A full list of features is available on the project's website.

ZEQ2 Lite

1536 5 Aug 2011
ZEQ2-Lite is an open-sourced and mod expandable project based on a highly modified ioQuake3 engine foundation and features many true-to-reference...
Gamers: 1
Rating: 9
Popularity: 0

Quake III Arena

1.32c 8 May 2006
Welcome to the Arena, where high-ranking warriors are transformed into spineless mush.
Gamers: 10
Rating: 8.4
Popularity: 0

Return to Castle Wolfenstein

World War II rages and nations fall.
Gamers: 6
Rating: 6.8
Popularity: 0

Medal of Honor: Allied Assault

by 2015
1.11-beta3 1 Apr 2006
In Medal of Honor: Allied Assault, you are Lt.
Gamers: 2
Rating: 5.3
Popularity: 0

Heavy Metal: F.A.K.K.2

Years have passed since Julie Strain (a.
Gamers: 3
Rating: 7
Popularity: 0

Smokin' Guns

The Smokin' Guns game started its life under the name of Western Quake³.
Gamers: 6
Rating: 7.4
Popularity: 0

World of Padman

1.6 17 Dec 2011
World of Padman is an open source first-person shooter computer game available in both English and German.
Gamers: 10
Rating: 7.9
Popularity: 0


1.1.0 30 Mar 2006
Tremulous is a free, open source game that blends a team based FPS with elements of an RTS.
Gamers: 8
Rating: 6.3
Popularity: 0


0.8.8 20 Feb 2012
OpenArena is a free network enabled multiplayer first person shooter based on the ioquake3 fork of the id tech 3 engine.
Gamers: 20
Rating: 8
Popularity: 0

Urban Terror

4.2.x 15 Jul 2013
Urban Terror started as a realism based "total conversion" mod for Quake III Arena.
Gamers: 20
Rating: 8.2
Popularity: 0