Call of Duty: World at War

Call of Duty: World at War is a first-person shooter video game developed by Treyarch and published by Activision for Microsoft Windows, PlayStation 3, Wii, and Xbox 360. It is the fifth installment in the series, excluding expansion packs. The game's setting returns to series' trademark World War II setting, after the previous title, Call of Duty 4: Modern Warfare was set in present day. It focuses on the Pacific Theater and Eastern Front of World War II for the Microsoft Windows, PlayStation 3, Wii, and Xbox 360 versions. The game was released in North America on November 11, 2008 and in Europe on November 14, 2008. A Windows Mobile version was also made available by Glu Mobile and different storyline versions for the Nintendo DS and PlayStation 2 were made, but remain in the World War II setting. The game is based on an enhanced version of the Call of Duty 4 game engine developed by Infinity Ward with increased development on audio and visual effects.

Call of Duty: World at War features a more mature theme than previous installments in the series. The game is also open-ended, as there are multiple ways to complete objectives. The gameplay of World at War shares features with previous iterations of the franchise. Players fight alongside AI-controlled teammates, who help during the game's missions by providing cover fire, shooting enemies, and clearing rooms for entry.

Gameplay on the Wii version of the game can be controlled with a gun-like expansion controller known as the Wii Zapper. The Zapper, or Wii Remote and Nunchuk, can be used to aim at targets to simulate marksmanship.