Subnautica: Below Zero

4.5
437 reviews
5K+
Downloads
Content rating
Everyone 10+
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About this game

Get it at a special 10% off launch price!


*Please make sure your device is supported before purchasing Below Zero!*

Below Zero is the next chapter of Subnautica, the underwater survival open world set on an alien ocean planet.

Submerge yourself in an all-new, sub-zero expedition in an arctic region of Planet 4546B. After crash landing planetside, set out into frigid waters to investigate what happened to your sister...

Discover new biomes, creatures, challenges and story! Below Zero expands the Subnautica universe, diving deeper into the adventure and mysteries introduced in the original game.

UNCOVER THE TRUTH - Who were the aliens who came here before? Why were they on this planet? What really happened to your sister? And will exposing the truth give some closure to your loss?

SURVIVE THE COLD - The freezing temperatures of this arctic region pose a new challenge. Craft a toasty cold suit, sip on piping hot coffee, and warm up next to Thermal Lilies to stave off the chill.

CRAFT YOUR WAY - Survive the harsh climate by constructing extensive habitats, scavenging for resources, and crafting equipment. Blast across the snowy tundra on a Snowfox hoverbike. Cruise through enchanting and perilous biomes in your modular Seatruck.

EXPLORE THE PLANET - Swim beneath the blue-lit, arching expanses of Twisty Bridges, be mesmerized by the Crystal Caverns, venture into the icy caves of Glacial Basin or maneuver between erupting Thermal Vents to discover ancient alien artifacts.

MEET NEW CREATURES - Something undiscovered lurks around every corner. Swim through the giant Titan Holefish, encounter the haunting Shadow Leviathan, and visit the adorable Pengwings. Keep your wits about you. Not all creatures in this strange world are friendly.

REIMAGINED AND OPTIMIZED FOR MOBILE
- Revamped interface – exclusive mobile UI with complete touch control
- Google Play Games achievements
- Cloud Save – Share your progress between Android devices

Continue your Subnautica adventure with Below Zero, now available in Unknown World's mobile catalog!
Updated on
Feb 27, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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Ratings and reviews

4.5
414 reviews
AJ Kendle
March 11, 2026
first of all, I'm very excited. subnautica below zero and subnautica are on mobile. This is perfect for if you want to play the game without having a console or PC. or if you want to play on the go. I will always say this. it's very surreal. whether you are on mobile or on PC/Console. you will love this game. 👍🏻 Unlike before in the original subnautica mobile, The buttons are mini joysticks. everything's so much easier to move around!
4 people found this review helpful
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Unknown Worlds
March 11, 2026
Thank you for your review!
Emerald
March 11, 2026
Spoilers! love it. A beautifully done port to mobile, and a wonderful offline survival game that I personally prefer to the original game. Naturally at launch, some glitches are speckled around, but every prompt in the story triggered, each cutscene played perfectly, and controllers work nicely. I've been waiting for this, and am very glad to say it does not disappoint. My favorite game on the go, thank you very, very much, Unknown Worlds and Playdigious. Cheers! OH, and I CAN'T forget the scan-
3 people found this review helpful
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Unknown Worlds
March 11, 2026
Thank you for your review!
Kaz
March 15, 2026
so far so good, the controls were a bit different from the first Subnautica but it was easy enough to understand how to use them. Great port again. I'm loving it. I came upon a bug with the shadow leviathan where it would grab my prawn suit and it would keep doing damage to it no matter how many times I would punch it or use the drill arm and it wouldn't drop me at all.
3 people found this review helpful
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Unknown Worlds
March 17, 2026
Hi, we're really sorry to hear that. Please don't hesitate to reach out through the in-game chat with as many details as possible and some screenshots or videos, and we'll do our very best to help!