Popular games built on game engine ioquake3

Urban Terror, commonly abbreviated as UrT, is a free multiplayer first person shooter developed, that will run on any Quake III Arena compatible engine. It is available for Windows, Linux and Mac OS. "Where Quake Meets Reality" The game can be described as a Hollywood tactical shooter; somewhat realism based, but the motto is "fun over realism". This results in a very unique, enjoyable and addictive game. Urban Terror is a standalone game since 2007 when id Software released its id Tech 3 engine under the GPL license. It now uses the latest ioquake3 engine that it is regularily updated and improved.

World of Padman is an open source first-person shooter computer game available in both English and German. Originally it was a modification for the game Quake III Arena titled PadMod created in the year 2004. After the source code for Quake III Arena was released, the game became standalone. The idea is based on the Padman comic strip for the magazine PlayStation Games created by the professional cartoon artist Andreas 'ENTE' (German for "Duck") Endres, who is also the man who made many of the maps included with the game in 1998. The current version runs on an enhanced version of the ioquake3 engine, which is based on the Quake III Arena engine.