Call of Duty: Black Ops is a 2010
first-person shooter video game. The game was developed by
Treyarch, published by
Activision, and released worldwide on November 9, 2010 for
Microsoft Windows,
PlayStation 3,
Xbox 360, and
Wii consoles, with a separate version for
Nintendo DS developed by
n-Space. Announced on April 30, 2010, the game is the seventh installment of the
Call of Duty series. It is also the first to be set in the
Cold War and the fifth to be set in
World War II. It is the third in the series to be developed by Treyarch, and is the sequel to
Call of Duty: World at War.