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.
Half-Life (1998), Sierra On-Line, Inc.

Zeno Clash (2009), ACE Team Software
Defense Grid: The Awakening (2008), Hidden Path Entertainment, Inc.
SiN Episodes: Emergence (2006), Valve Corporation
Vampire: The Masquerade - Bloodlines (2004), Activision Publishing, Inc.
Half-Life: Blue Shift (2001), Sierra On-Line, Inc.
Throne of Darkness (2001), Sierra On-Line, Inc.
Ground Control (2000), Sierra On-Line, Inc.

Gunman Chronicles (2000), Sierra On-Line, Inc.
Half-Life: Counter-Strike (2000), Sierra On-Line, Inc.
Half-Life (Platinum) (2000), Sierra On-Line, Inc.

Half-Life 2 (2004), Valve Corporation
Half-Life (2001), Sierra On-Line, Inc.

Half-Life (Game of the Year Edition) (1999), Sierra On-Line, Inc.
Half-Life: Opposing Force (1999), Sierra On-Line, Inc.

Rag Doll Kung Fu (Black Belt Edition) (2007), Wild Hare Entertainment, LLC.
Counter-Strike: Condition Zero (2004), Sierra Entertainment, Inc.

Half-Life: Counter-Strike (2000), Sierra On-Line, Inc.

Counter-Strike: Source (2004), Valve Corporation

Homeworld (1999), Sierra On-Line, Inc.