Treyarch was founded in 1996, the company was acquired by Activision in 2001.
In 2005, Gray Matter Interactive was merged into Treyarch.
As part of the 2007 Leipzig Games Convention, Activision announced that Treyarch would be one of three developers behind their first James Bond based game, 007: Quantum of Solace. The game was released on October 31, 2008 in Europe and November 4, 2008 in North America. Vicarious Visions developed the Nintendo DS version and Eurocom developed the PlayStation 2 version. Treyarch is a major developer in the Call of Duty series.
Call of Duty: Black Ops II held the record for the largest entertainment launch in history in any form of entertainment, breaking the record within 24 hours of its release until it was surpassed by Grand Theft Auto V. Sales from the game worldwide reached US$650 million within five days after its release. Treyarch worked on the Wii U version of Call of Duty: Ghosts, in order to optimize it for the console. Treyarch's most recently released video game is Call of Duty: Black Ops 4, which was released on October 12, 2018.