Playtime
HowLongToBeat · Medium confidence
Main Story
20h 10m
Main + Extra
26h 16m
Completionist
32h 29m
Media
2 videos + 6 screenshotsLinks
About This Game
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.
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Last updated Sep 17, 2026