We Love It's Guide to…
Investigate your sister’s fate on an arctic alien ocean, gathering resources, crafting gear, and exploring by sea and land.
Released 13 May 2021
Investigate Sister’s Fate
Build Arctic Habitats
Configure Seatruck Modules
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.
Developed by Unknown Worlds Entertainment · Published by Unknown Worlds Entertainment









You play as Robin, arriving in the arctic region of Planet 4546B to investigate what happened to her sister. Abandoned research stations, logs, and databanks offer clues to the events surrounding the expedition.
Explore underwater biomes, icy caves, and snowy terrain while scanning alien life and gathering materials. Craft tools and equipment, and build habitats to support your exploration.
Survival depends on managing oxygen underwater and staying warm on land. Find blueprints to advance your equipment, travel in a modular Seatruck or Snowfox hoverbike, and prepare for hostile creatures and harsh weather.
Reviewers who enjoyed the game often praise its striking arctic biomes and alien creatures, the pleasure of exploring and building a base, and the Seatruck’s modular design. Some also appreciate the more direct story and added lore. Opinions are mixed: reviewers frequently compare it unfavorably with the original, especially regarding the smaller world, land sections, narrative, and level of danger.
| Platforms | Windows, macOS |
|---|---|
| Achievements | 13 |
| Age ratings |
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| Players | 1 |
| Multiplayer | The provided information indicates single-player support. No confirmed multiplayer mode is described. A player review explicitly frames multiplayer as something the game does not have. |
| Multiplayer & mods | No information is provided about mods affecting multiplayer. |
| Controller support | PlayStation, Xbox |
| Controller required | No |
| DLC / extras | 1 listed on Steam |
| Content notices |
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| Website | Official website |
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