Game
App 848450
Subnautica: Below Zero
Unknown Worlds Entertainment · released May 14, 2021
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.
Price
$29.99
US store
Reviews
90%
99,795 · Very Positive
Playing now
272
sampled 1d ago
24h peak
272
all-time seen 478
Followers
246,776
18h ago
Owners (est.)
~4M
2M – 6.4M
YouTube activity
0
videos · 30 d29
creators7.8M
views · 1 yTwitch activity
26
avg viewers · 30 d2.7K
hours watched · 30 d91
streamers · 30 dProduct info
from Steam's PICS · read 4d ago- Change number
- 37,730,503
- Public build
- 20,245,197 · Oct 3, 2025 (1y ago)
- Operating systems
- windows, macos
- Architecture
- 64-bit
- Install size
- 17 GB · 10 GB download
- Install folder
SubnauticaZero- Controller support
- Full
- Metacritic
- —
- Homepage
- unknownworlds.com/subnautica
- Release state
- released
- Community
- hub · stats
Steam Deck
VerifiedTested Aug 12, 2025 on build 18,630,105
- ✓Default controller config fully functional
- ✓Controller glyphs match deck device
- ✓Interface text is legible
- ✓Default configuration is performant
- iExternal controllers not supported primary player
Branches · 2
every build Steam serves for this app| Branch | Build | Updated | Description |
|---|---|---|---|
| public | 20,245,197 | Oct 3, 2025 · 1y ago | |
| experimental | 20,245,197 | Oct 3, 2025 · 1y ago | Automatic daily updates. Lots of bugs! |
Build history
every build id we have seen on a branch (history starts with our first read)| Build | Branch | Released | First seen |
|---|---|---|---|
| 20,245,197 | experimental | Oct 3, 2025 21:49 | 4d ago |
| 20,245,197 | public | Oct 3, 2025 21:48 | 4d ago |
Depots · 5
content of the public branchLaunch options · 3
| Executable | OS | Description |
|---|---|---|
SubnauticaZero.exe-silent-crashes -vrmode none |
windows 64-bit | Launch |
SubnauticaZero.app |
macos | Launch |
Subnautica32.exe |
windows 32-bit | Launch |
Languages · 19
| Language | Interface | Full audio | Subtitles |
|---|---|---|---|
| Czech | ✓ | — | ✓ |
| Spanish - Latin America | ✓ | — | ✓ |
| French | ✓ | — | ✓ |
| German | ✓ | — | ✓ |
| Polish | ✓ | — | ✓ |
| Slovak | ✓ | — | ✓ |
| English | ✓ | ✓ | ✓ |
| Finnish | ✓ | — | ✓ |
| Italian | ✓ | — | ✓ |
| Korean | ✓ | — | ✓ |
| Russian | ✓ | — | ✓ |
| Spanish | ✓ | — | ✓ |
| Turkish | ✓ | — | ✓ |
| Japanese | ✓ | — | ✓ |
| Simplified Chinese | ✓ | — | ✓ |
| Traditional Chinese | ✓ | — | ✓ |
| Portuguese - Brazil | ✓ | — | ✓ |
| Hungarian | ✓ | — | ✓ |
| Ukrainian | ✓ | — | ✓ |
Packages · 1
all packages| Sub | Name | Billing | Price |
|---|---|---|---|
| 265866 | Subnautica: Below Zero | Store or CD key | $29.99 |
Bundles · 2
all bundles| Bundle | Games | Bundle discount | Price |
|---|---|---|---|
| Subnautica Deep Ocean Bundle | 3 | -10% | $80.97 |
| Subnautica: Below Zero Sub-Sonic Edition | 1 | -10% | $35.98 |
Updates · patch notes
Steam announcements tagged as patch notes, linked to the public build they followed
No patch notes seen yet for this game.