Call of Duty: Zombies

Call of Duty: World At War: Zombies is a spin-off game of the Call of Duty series based on the widely popular Nazi Zombies mode of Call of Duty: World at War. Developed by Ideaworks Game Studio and was published by Activision for the iPhone OS, it was released worldwide on November 16, 2009. The game allows for multiplayer cooperative gameplay locally via an ad hoc Wi-Fi or Bluetooth network, or globally through the internet. Downloadable content in the form of new maps will be available for purchase in the future.

Plot
The game takes place in a German Bunker during World War II. The player assumes the role of a United States Marine and must fend off the Nazi Zombies who attempt to break into the bunker.