The physical console versions were published by Gearbox Publishing. The game was released out of early access in January 2018 for macOS and Windows, with versions for PlayStation 4 and Xbox One in December 2018. Subnautica was released in early access for Windows in December 2014, macOS in June 2015, and Xbox One in May 2016. It includes some elements of survival games and some elements of non-survival games. The main objectives are to find essential resources, survive the local flora and fauna, and find a way to escape. They are free to explore the oceanic planet. Players control a non-essential systems maintenance chief, often referred to as the janitor inside the Subnautica community, who is the only survivor of a spaceship crash on an alien planet. Subnautica is an action-adventure game developed and published by Unknown Worlds Entertainment.