The player controls the lone survivor of a waylaid spacecraft called the Aurora, now stranded on a remote ocean planet named simply '4546B'. Subnautica is a survival, adventure game set in an open world environment and played from a first-person perspective. Subnautica has a sequel called Subnautica: Below Zero which launched into early access on January 30, 2019. The full release out of early access was in January 2018, exclusively for Microsoft Windows on Steam, and later on the Discord and Epic Games stores, with the versions for the Xbox One and PlayStation 4 on December 4, 2018. Subnautica was first released in early access for Microsoft Windows in December 2014, Mac OS X in June 2015, and for Xbox One in May 2016. They will face creatures of all kinds in a battle for survival. It allows the player to freely explore the ocean on an alien planet, known as planet 4546B, collecting unique resources to survive.

Subnautica is an open-world survival action-adventure video game developed and published by Unknown Worlds Entertainment.

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