Cyberia (1994)
Cyberia 2: Resurrection (1995)
Redneck Rampage (1997)
Redneck Rampage: The Early Years (1997)
Redneck Deer Huntin' (1997)
Redneck Rampage Rides Again (1998)
Quake II: The Reckoning (expansion) (1998)
Kingpin: Life of Crime (1999)
Games developed as Gray Matter
Trinity: The Shatter Effect (cancelled by Activision)
Return to Castle Wolfenstein (multiplayer was done by Nerve Software) (2001)
True Crime: Streets of LA (PC) (2004)
Call of Duty: United Offensive (expansion) (2004)
Call of Duty 2: Big Red One (in conjunction with Treyarch) (2005)