UPDATE:The game is no longer Free to Play, it will split in 2 different games, H1Z1: Just Survive and H1Z1: King of the Kill. Anyone who already have H1Z1 will be granted both versions and will see it listed in Steam games inventory on February 17th 2016.
Sony Online Entertainment reveal H1Z1, a new free to play zombie mmo. H1Z1 is a massively multiplayer game in which players fight for survival in a Apocalyptic-Zombie infested world. For PC and PS4.