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Subnautica: Below Zero

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.

Release Date
May 13, 2021
Rating
85.2/100

Available On

Boosteroid (License)

Subscription-based (license tier) · No free trial available

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Single player Survival Science fiction Open world

Screenshots

Subnautica: Below Zero screenshot 1
Subnautica: Below Zero screenshot 2
Subnautica: Below Zero screenshot 3
Subnautica: Below Zero screenshot 4

About This Game

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.

Game Details

Studios

  • Unknown Worlds Entertainment

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Official Site

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Game metadata sourced from IGDB. · Last updated Mar 22, 2026