Subnautica: Below Zero

Below Zero is an underwater adventure set in an alien ocean world. Meet the next chapter in the Subnautica universe, developed by Unknown Worlds.

Return to Planet 4546B

Embark on an underwater expedition in the frigid Arctic region of planet 4546B. Armed with only your wits and a modest set of rescue equipment, you must investigate the events that happened to your sister...

Get to the bottom of the truth

After a mysterious incident, Alterra hastily abandoned the planet. The entire region is littered with abandoned research stations. What happened to the scientists who lived and worked here? Journals, items, and data banks scattered among the debris provide a different perspective on the incident. With limited resources, you will have to i...