Call of Duty: World at War: Zombies (also known as Call of Duty: Zombies) is a first-person shooter video game developed by Ideaworks Game Studio, and published by Activision for iOS. It is a spin-off of the Call of Duty series, and based on the "Nazi Zombies" mode of Call of Duty: World at War.^[1] The game was released worldwide on November 16, 2009.^[2] The game allows for multiplayer cooperative gameplay locally via an ad hoc Wi-Fi or Bluetooth network, or globally via the internet. It will offer purchasable downloadable content in the form of new maps in the future.^[3][4]
The game's setting originally takes place in a German bunker (Nacht der Untoten) during World War II from the viewpoint of a United States Marine.^[5] SS soldiers who have become zombies attempt to infiltrate the bunker and attack the player, and the player must defend themselves in the process.