Call of Duty: Black Ops Zombies (also known as CoD BOZ, Black Ops Zombies, Call of Duty: Zombies III, Call of Duty 7 Zombies) is the eighth game in the spin-off branch of Call of Duty games and was produced by Ideaworks Gamestudios and then later Marmalade Gamestudios, released first on December 1, 2011 on iOS devices, then August 1, 2012 on Android devices.