Subnautica: Below Zero — Is It Worth Playing?

Dive into a freezing underwater adventure on an alien planet.

May 13, 2021Adventureby Unknown Worlds Entertainment$7.49
Quick verdict Subnautica: Below Zero draws a 24-hour peak of 1,899 players on Steam. It's on our trending radar. If you enjoy Adventure games like Slime Jump, Emissary Zero, Fears to Fathom - Ironbark Lookout, it's an easy one to check out.

About Subnautica: Below Zero

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.

Description via Steam.

Key Stats

24h peak players
1,899
Genre
Adventure
Developer
Unknown Worlds Entertainment
Release
May 13, 2021
Price
$7.49

Should You Play Subnautica: Below Zero?

Who it's for: fans of Adventure games like Slime Jump, Emissary Zero, Fears to Fathom - Ironbark Lookout.

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…

Subnautica: Below Zero is single-player on Steam and runs on Windows, Mac. It's on our trending radar right now.

▶ Get Subnautica: Below Zero on Steam →

Opens the official Steam store page.

System Requirements & Platforms

View PC requirements & supported platforms

Platforms: Windows, Mac

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

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

Subnautica: Below Zero — Frequently Asked Questions

When does Subnautica: Below Zero release?
Subnautica: Below Zero released on May 13, 2021 and is available now on Steam.
What kind of game is Subnautica: Below Zero?
Subnautica: Below Zero is an Adventure game. Dive into a freezing underwater adventure on an alien planet.
Is Subnautica: Below Zero multiplayer or co-op?
No — Subnautica: Below Zero is listed as single-player only on Steam.
Is Subnautica: Below Zero on Steam Deck or consoles?
Subnautica: Below Zero runs on Windows, Mac via Steam; Steam Deck compatibility has not been confirmed. No console release has been confirmed.
How much does Subnautica: Below Zero cost?
Subnautica: Below Zero is priced at $7.49 on Steam.
What are Subnautica: Below Zero's system requirements?
The developer has not published detailed system requirements yet.
Is Subnautica: Below Zero worth playing in 2026?
Plenty of players think so — Subnautica: Below Zero peaked at 1,899 concurrent players on Steam in the last 24 hours as of 2026.
Who made Subnautica: Below Zero?
Subnautica: Below Zero is developed by Unknown Worlds Entertainment.
What games is Subnautica: Below Zero similar to?
Subnautica: Below Zero sits alongside Adventure games such as Slime Jump, Emissary Zero, Fears to Fathom - Ironbark Lookout.
What platforms is Subnautica: Below Zero on?
Subnautica: Below Zero is available on Windows, Mac.

Data & media via Steam · updated 2026-07-17 · all trending games →