DayZ is a multiplayer open world survival horror video game in development by Bohemia Interactive and the stand-alone version of the award-winning mod of the same name. The game was test-released on December 16, 2013, for Microsoft Windows via digital distribution platform Steam, and is currently in early alpha testing.
The game places the player in the fictional 225km2 post-Soviet state of Chernarus+, where an unknown virus has turned most of the population into violent zombies. As a survivor, the player must scavenge the world for food, water, weapons, and medicine, while killing or avoiding zombies, and killing, avoiding or co-opting other players in an effort to survive the zombie apocalypse.
DayZ began development in 2012 when the mod's creator, Dean Hall, joined Bohemia Interactive to commence work on the standalone version of the game. The development has been focused on altering the engine to suit the game's needs, developing a working client-server architecture, and introducing new features like diseases and a better inventory system. The game has sold over 2 million copies since its alpha release. At Gamescom 2014, it was announced that DayZ will be coming to the PS4.