Just Survive (formerly known as H1Z1 and then H1Z1: Just Survive) was a MMO open-world survival horror shooter developed and published digitally by Daybreak for the PC (via Steam as an early access title) on January 16, 2015. The game was later cancelled and discontinued on October 24, 2018, with no official release.
Along with its traditional survival-horror mode, the game was originally released with a separate PVP-focused mode dubbed "Battle Royale" (which was based on the mod of the same name for ArmA II and ArmA III). This mode was later spun-off into its own separate project (dubbed "H1Z1: King of the Kill", with the normal mode being renamed "H1Z1: Just Survive") on February 18, 2016. The game received its last name change on August 15, 2017.