Official website: http://www.idsoftware.com/

 
8.7
DOOM

 
8.0
Quake: Mission Pack 1 – Scourge of Armagon

 
6.0
Ultimate Doom

 
4.0
Hexen II Mission Pack: Portal of Praevus

 
7.3
Enemy Territory: Quake Wars

 
7.7
Heretic

 
7.4
Final Doom

 
8.0
Quake II Mission Pack: The Reckoning