GTX is a graphic mod developed for Doom3 and Quake4 that enhance the game experience with new graphic effects never seen before in the game. This is the profile page of GTX for Quake 4.
Patch for update GTX Q4 from version 1.0.0 to 1.0.1, only for Windows's Quake 4 version: 1.3
Patch for update GTX Q4 from version 1.0.1 to 1.0.5, only for Windows's Quake 4 version: 1.4.2