It first appeared in Call of Duty: World at War and became highly popular upon the game's release, resulting in the mode returning in Call of Duty: Black Ops, Call of Duty: Black Ops II, Call of Duty: Black Ops III, Call of Duty: Black Ops 4, Call of Duty: Black Ops Cold War, and Call of Duty: Vanguard. Zombies, originally Nazi Zombies, is a game mode created by Treyarch. But be warned: there are more than just Zombies lurking these dark hallways.' - Call of Duty: Black Ops game manual description Repel wave after wave of increasingly deadly Zombies in a number of frightening locales. ' Survive the Zombie hordes alone or cooperatively.
For similarly named game modes, see Zombies (Sledgehammer) and Zombies (Infinite Warfare). For other uses, see Zombie (disambiguation).
