Left 4 Dead 2 (2009), Valve Corporation
Left 4 Dead (2008), Valve Corporation
Half-Life 2: Episode Two (2007), Buka Entertainment
The Orange Box (2007), Valve Corporation
Portal (2007), Buka Entertainment
Half-Life 2: Episode One (2006), Valve Corporation
Half-Life 2 (2004), Valve Corporation
Half-Life: Blue Shift (2001), Sierra On-Line, Inc.
Hexen II (1997), id Software, Inc.

Counter-Strike: Source (2004), Valve Corporation
Soldier of Fortune (2000), Activision, Inc.
Soldier of Fortune (Gold Edition) (2000), Activision Publishing, Inc.
Heretic II (1998), Activision, Inc.
Hexen II: Mission Pack: Portal of Praevus (1998), Activision Publishing, Inc.
Hexen II (1997), id Software, Inc.

Half-Life 2 (2004), Valve Corporation
Half-Life (2001), Sierra On-Line, Inc.
Star Trek: Voyager - Elite Force (2000), Activision Publishing, Inc.