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
- 2021
- Developer
- Unknown Worlds Entertainment
- Platforms
- 1 systems
- Critics
- Not scored
- Steam Deck
- verified
- Download
- 15 GB
What is 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.
Description as published by the developer on its own store page, read 30 August 2026. It is marketing copy, not our assessment.
The record
| First released | 12 May 2021 |
|---|---|
| Developer | Unknown Worlds Entertainment |
| Publisher | Unknown Worlds Entertainment |
| Platforms | PC |
| Genres | Adventure, Indie |
| Languages | 19 supported |
Source. Catalogue facts from Wikidata , seeded TBA. Store data from Steam, read 30 August 2026.
How was Subnautica: Below Zero received?
Method. Player figures are Steam's own totals for the PC version, read 30 August 2026. The Metacritic score is the one Steam publishes on its store page and can lag the site itself. Neither is our opinion. We have not published a review of this game.
Accessibility
Seeing
None declared
Hearing
None declared
Input
- Full controller support
Difficulty
None declared
Method. Features the publisher declared on its own store page. A declaration is a floor, not a review.
What does it support?
| Capability | Support |
|---|---|
| Controller | full support |
| Cloud saves | Yes |
| Cross-platform play | No |
| Mod support | No official workshop |
| Online play | Single-player only |
| In-game purchases | No |
| Steam Deck | verified |
| Download size | 15 GB |
| Add-on content | 1 DLC listed |
| Age gate | None |
Method. Read from the publisher's Steam listing on 30 August 2026. Describes the PC version. Console versions differ.
What does it cost?
Steam price in US dollars, read 30 August 2026. Prices move hourly and vary by region. Check the current price.
Games like Subnautica: Below Zero
24 games overlap with Subnautica: Below Zero on the tags Steam players applied to it, on genre, and on theme. The closest are Subnautica, The Planet Crafter and Prey.
Common questions about Subnautica: Below Zero
What platforms is Subnautica: Below Zero on?
Subnautica: Below Zero is available on PC. It first released in 2021.
How much does Subnautica: Below Zero cost?
$29.99 on Steam in the United States, read on 30 August 2026. Prices move often and vary by region, so check the store before buying.
Do players recommend Subnautica: Below Zero?
90% of 108,227 Steam reviews are positive, which Steam rates Very Positive. That is players rating it, not our review. We have not published a review of this game.
Does Subnautica: Below Zero work on Steam Deck?
Valve rates Subnautica: Below Zero as verified on the Steam Deck, from its own testing. That means it works out of the box with no configuration.
How big is the Subnautica: Below Zero download?
15 GB on PC, from the storage requirement on its Steam listing. Console versions differ.
Who made Subnautica: Below Zero?
Subnautica: Below Zero was developed by Unknown Worlds Entertainment and published by Unknown Worlds Entertainment.