Unknown Worlds Entertainment

Subnautica: Below Zero

Dive into a freezing underwater adventure on an alien planet. Below Zero is set two years after the original Subnautica. Return to Planet 4546B to uncover the truth behind a deadly cover-up. Survive by building habitats, crafting tools, & diving deeper into the world of Subnautica.

Released: 13 May 2021
Developer: Unknown Worlds Entertainment
Publisher: Unknown Worlds Entertainment
Engine: Unity
Perspective: First person
Age rating: PEGI 12 · ESRB E10+
Controller: Full controller support
Steam recommendations: 99,020
Platforms: Xbox Series X|S · PlayStation 4 · Nintendo Switch 2 · PC (Microsoft Windows) · PlayStation 5 · Mac · Xbox One · Nintendo Switch
Genres: Adventure · Indie
Also known as: Below Zero
Estimated owners: 2,000,000–5,000,000 (est.)

81
Player rating: 85
Critic rating: 142
Ratings counted: 90.1%
Steam reviews: 13
Achievements

Quick answers

Crossplay System requirements 8 GB RAM Download size 15.0 GB Steam Deck Verified Player counts 1,298

Subnautica: Below Zero

The story

Return to planet 4546B. Submerge yourself in an all-new, sub-zero expedition in an arctic region of Planet 4546B. Arriving with little more than your wits and some survival equipment, you set out to investigate what happened to your sister... Alterra left in a hurry after a mysterious incident. Abandoned research stations dot the region. What happened to the scientists who lived and worked here? Logs, items, and databanks scattered among the debris paint a new picture of the incident. With limited resources, you must improvise to survive on your own. What really happened to your sister? Who were the aliens who came here before? Why were they on this planet? Can we find solace from grief in truth? Below Zero extends the story of the Subnautica universe, diving deep into the mystery introduced in the original game.

Subnautica: Below Zero