Zombie apocalypse is a subgenre of apocalyptic and post-apocalyptic fiction in which society collapses due to overwhelming swarms of zombies. Typically only a few individuals or small bands of human survivors are left living. In some versions, the reason the dead rise and attack humans is unknown, in others, a parasite or infection is the cause, framing events much like a plague. Some stories have every corpse zombify, regardless of the cause of death, whereas others require exposure to the infection, most commonly in the form of a bite.
| Zombies |
|---|
 |
| In media |
The genre originated in the 1968 American horror film Night of the Living Dead, which was directed by George A. Romero, who took inspiration from the 1954 novel I Am Legend by Richard Matheson. Romero's film introduced the concept of the flesh-eating zombie and spawned numerous other fictional works, including films, video games and literature.
The zombie apocalypse has been used as a metaphor for various contemporary fears, such as global contagion, the breakdown of society, and the end of the world. It has repeatedly been referenced in the media and inspired various fan activities such as zombie walks, making it a dominant genre in popular culture.