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

 
8.0
Commander Keen

 
7.2
Master Levels for Doom II

 
8.0
Quake 4

 
8.6
Quake II

 
9.2
Return to Castle Wolfenstein

 
3.0
Doom II RPG

 
8.4
Quake III Gold

 
6.9
Quake III: Team Arena