Call of Duty: World at War is a 2008 first-person shooter game developed by Treyarch and published by Activision. It is the fifth main installment of the Call of Duty series and is the fourth entry in the series to be set during World War II.

Call of Duty (COD) is a video game series started in the early 2000s. The first 6 games are about World War II, but the series began branching out beginning with Modern Warfare. The series now spans World War II, the Cold War, the present, the near future, and the far future.