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Gray Matter Interactive Studios, Inc.
FormerlyXatrix Entertainment, Inc. (1993–1999)
IndustryVideo games
Founded1993; 29 years ago (1993)
  • Drew Markham
  • Barry Dempsey
Defunct2005 (2005)
FateMerged into Treyarch
ParentActivision (2002–2005)

Gray Matter Interactive Studios, Inc. (formerly Xatrix Entertainment, Inc.) was an American video game developer based in Los Angeles.


Gray Matter Interactive was founded as Xatrix Entertainment in 1993 by Drew Markham and Barry Dempsey.[citation needed] The company was renamed Gray Matter Interactive on June 17, 1999,[citation needed] and was acquired by Activision on January 14, 2002.[1][2][3] In 2005, the studio was merged into Treyarch, another California-based Activision studio.[4][5]

Games developed

As Xatrix Entertainment

Year Title
1994 Cyberia
1995 Cyberia 2: Resurrection
1997 Redneck Rampage
1998 Redneck Rampage Rides Again
Redneck Deer Huntin'
Quake II Mission Pack: The Reckoning
1999 Kingpin: Life of Crime

As Gray Matter Interactive

Year Title
2001 Return to Castle Wolfenstein
2004 Call of Duty: United Offensive
Canceled Trinity: The Shatter Effect[6]


  1. ^ "Activision Acquires Rest Of Gray Matter Interactive". The Wall Street Journal. January 14, 2002. Retrieved February 18, 2018.
  2. ^ Walker, Trey (January 14, 2002). "Activision grabs Gray Matter". GameSpot. Retrieved February 18, 2018.
  3. ^ Becker, David (January 14, 2002). "Activision buys game developer". CNET. Retrieved February 18, 2018.
  4. ^ "Gray Matter Studios Games". IGN. Archived from the original on September 28, 2012. Retrieved May 20, 2016.
  5. ^ Peel, Jeremy (February 15, 2021). "How Treyarch escaped Infinity Ward's shadow". PC Gamer. Retrieved October 30, 2021.
  6. ^ Adams, Dan (May 9, 2003). "Trinity Interview". IGN. Retrieved February 18, 2018.