Treyarch is an American video game development company, founded in 1996 by Peter Akemann and Doğan Köslü (a.k.a. Don Likeness), and acquired by Activision in 2001. Located in Santa Monica, California, it has produced multiple games, including Call of Duty 2: Big Red One, Call of Duty 3, Call of Duty: World at War, Call of Duty: Black Ops, Call of Duty: Black Ops II, and Call of Duty: Black Ops III.