H1Z1 is a multiplayer online battle royale game developed by Daybreak Game Company. Released in early access in 2015, it allows players to compete against each other in a large open world, scavenging for weapons and supplies while trying to be the last person or team standing. The game features both solo and team modes, enhancing the competitive experience. Initially, H1Z1 was split into two separate games: H1Z1: Just Survive, focusing on survival elements, and H1Z1: King of the Kill, which emphasized the battle royale format. Over time, the game has evolved, introducing new maps, vehicles, and gameplay mechanics.