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Steam app 848450 · updated 10 Sep 2026, 17:18 UTC

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.

History chartsJune 2026 to September 2026
Last 30 days+36.6Gain+6.74%% gain1,339Peak
Subnautica: Below Zero Steam header artwork
Unknown Worlds EntertainmentUnknown Worlds Entertainment
383playing now
79424-hour peak
42,057all-time peak
579average, last 30 days

Game information

Updated 10 Sep 2026, 17:18 UTC
App ID
848450
Product type
Game
Developer
Unknown Worlds Entertainment
Publisher
Unknown Worlds Entertainment
Release date
13 May, 2021
Release status
Released
Early Access
Platforms
Windows, macOS
Genres
Adventure, Indie
Game modes
Single-player
Controller support
Full
Declared DRM
Achievements
13
Steam Deck
Verified
Metacritic

Features & support

Steam features

Steam AchievementsSteam Trading CardsSteam CloudRemote Play on TVFamily Sharing

Controllers & input

Full controller supportDualShock Controller Support

Accessibility

Popular tags

Open World Survival CraftSurvivalUnderwaterSingleplayerOpen WorldHorrorExplorationMultiplayerBase BuildingAdventureIndieCraftingFirst-PersonSurvival HorrorSci-fiAliensActionStory RichSandboxAtmospheric
About this gameFull description from Steam
Below Zero is an underwater adventure game set on an alien ocean world. It is the next chapter in the Subnautica universe and is developed by Unknown Worlds. Return to planet 4546B Submerge yourself in an all-new, sub-zero expedition in an arctic region of Planet 4546B. Arriving with little more than your wits and some survival equipment, you set out to investigate what happened to your sister... Uncover the truth Alterra left in a hurry after a mysterious incident. Abandoned research stations dot the region. What happened to the scientists who lived and worked here? Logs, items, and databanks scattered among the debris paint a new picture of the incident. With limited resources, you must improvise to survive on your own. Discover uncharted biomes Swim beneath the blue-lit, arching expanses of Twisty Bridges. Become mesmerized by the glittering, mammoth crystals of the Crystal Caverns. Clamber up snow covered peaks and venture into the icy caves of Glacial Basin. Maneuver between erupting Thermal Vents to discover ancient alien artifacts. Below Zero presents entirely new environments for you to survive, study, and explore. Construct habitats and vehicles 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. Research alien lifeforms 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. Survive the chilly temperatures Jump in, the water’s warm. The below zero temperatures of this arctic region pose a new threat. New weather conditions blanket above-ground habitats. Craft a toasty cold suit, sip on piping hot coffee, and warm up next to Thermal Lilies to stave off the chill. An ocean of intrigue What really happened to your sister? Who were the aliens who came here before? Why were they on this planet? Can we find solace from grief in truth? Below Zero extends the story of the Subnautica universe, diving deep into the mystery introduced in the original game. About the development team Below Zero is created by Unknown Worlds, a small studio that traces its roots back to the 2002 Half-Life mod Natural Selection. It is the same studio that created the original Subnautica. The team is scattered around the globe, from the United States to the United Kingdom, France, Russia, Austria, Australia, Canada, and many more places. Warning This game contains flashing lights that may make it unsuitable for people with photosensitive epilepsy or other photosensitive conditions. Player discretion is advised.
Content & age ratings5 regional ratings

Regional ratings

CEROa
DEJUS10Violência
ESRBe10Animated Blood · Fantasy Violence · Mild Language
IGRS18Horor · Penggunaan bahasa · Kekerasan
OFLCpgMild themes, online interactivity
System requirementsMinimum and recommended hardware

Minimum

Minimum: Requires a 64-bit processor and operating system OS *: Windows 7 64-bit Processor: Intel Core i3 4XXX series / AMD Ryzen 3 2.6ghz+ Memory: 8 GB RAM Graphics: Intel HD 530 or better DirectX: Version 11 Storage: 15 GB available space

Recommended

Recommended: Requires a 64-bit processor and operating system OS: Windows 10 64-bit Processor: Intel Core i5 4XXX series/ AMD Ryzen 5 @ 3Ghz + Memory: 8 GB RAM Graphics: Nvidia 1050 Ti / AMD Radeon 570, 4GB VRAM DirectX: Version 11 Storage: 15 GB available space

macOS

Minimum: OS: OS X 10.11 El Capitan Processor: Intel Core i5 Memory: 8 GB RAM Graphics: Intel Iris Pro 650 or better Storage: 15 GB available space Recommended: OS: OS X 10.13 High Sierra Processor: Intel Core i7, 4 cores Memory: 8 GB RAM Graphics: AMD Radeon R9 M395 or better Storage: 15 GB available space

Linux

Minimum: Recommended:
Supported languages19 languages
LanguageFull audio
English
French
Italian
German
Spanish - Spain
Japanese
Korean
Portuguese - Brazil
Spanish - Latin America
Russian
Simplified Chinese
Turkish
Ukrainian
Czech
Finnish
Hungarian
Polish
Traditional Chinese
Slovak

A blank audio cell means full audio was not marked in the returned language list.

Screenshots & trailersScreenshots and trailers

Trailers

AchievementsTotal count and selected achievements

13 achievements in total.

Show selected achievements (may contain spoilers)
Drop in the OceanHidden achievement
Like Riding a BikeHidden achievement
Truckin'Hidden achievement
Jukebox HeroHidden achievement
Dressed For The WeatherHidden achievement
Spy PenglingHidden achievement
Necessary RepairsHidden achievement
XenobiologyHidden achievement
Finding the CureHidden achievement
Another SurvivorHidden achievement

View all Steam achievements