Developed and published by Unknown Worlds Entertainment. 

In this newest addition to the world of Subnautica, you'll find even more environments to study and explore! Although it's a new entry, it carries on all that made the first entry so charming!

Welcome to Planet 4546B 

This time, you'll be exploring the arctic region of Planet 4546B to find out why Alterra — your sister — left in such a hurry. In this new land, you'll be enraptured by crystals, climb snowy peaks, nearly freeze to death, and more! 

Discover Alien Lifeform

This new planet is teeming with fauna and flora to discover! From Titan Holefish and Pengwings to the terrifying Shadow Leviathan — you'll be able to research them all and fully explore this new world!

Steam Deck

Take your underwater exploration with you everywhere, as Subnautica: Below Zero is playable on the Steam Deck!