Call of Duty: Black Ops - Zombies is a spin-off of the Zombies mode of the Call of Duty series and a sequel to Call of Duty: Zombies.

It is the sequel to the popular mode on Call of Duty: World at War, the fifth title in the Call of Duty series. The game allows two- to four-player co-op multiplayer, and, as a new addition to the iOS platform, voice chat, and another new feature - to crouch and full prone - a first for all iOS first-person shooters. The first map released was Kino Der Toten. Dead Ops Arcade has also been fully transformed to the iOS platform, with 50 levels, and the player is able to select and play as one of the four characters from the console version (Tank Dempsey, Nikolai Belinski, Takeo Masaki and Doctor Edward Richtofen) or as one of the four random characters from Dead Ops Arcade and a "rookie" soldier in the tutorial. Activision has stated that further map packs will be released in the near future, free of charge, and Ascension was listed as coming soon in the map selection, while Call of the Dead's name was seen briefly after that. Both of these maps have been released.

Kino Der Toten is much like its console/PC counterparts with the exception that its central stairway has been changed to two ramps that go in two directions and meet back up. All doors, perks, and weapons cost the same number of points as on console/PC.

"Ascension" is also quite similar to its original game play with the return of space monkeys, the pack a punch process, perks, and guns.