H1Z1

Offering a total sandbox experience, H1Z1 is a zombie survival MMO set in a post-apocalyptic world where thousands of players must strategically align with friends and against enemies in order to survive the worldwide infection.

Daybreak Games announced in early 2016 that H1Z1 has been split into two games: H1Z1: King of the Kill & H1Z1: Just Survive. Source: IGDB