Splash Damage - Wolfenstein Enemy Territory

ET Ultimate Installer with updates, modes and maps.

Omni-Bot

The source code for the game is available at ID software.
The people behind ioquake3 took up the job of modifying the code, see Welcome Wolfenstein: Enemy Territory and Return to Castle Wolfenstein!, but there hasn't been much progress: icculus.org - BugZilla - iowolfet.

ET: Legacy, Wolfenstein Enemy Territory: Legacy Project with src on github.

ETXreaL is a graphics mod for Wolfenstein: Enemy Territory using the enhanced XreaL id Tech 3 GPL engine.

Bitbucket - Ralph Eastwood / raedwulf-et