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.

md5

bddade4abaa912da333d6f27fde22b5e

game_description_snippet

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.

game_review_summary

Very Positive

responsive_reviewdesc

- 89% of the 1,257 user reviews in the last 30 days are positive.

review_number

1,257

release_date

May 13, 2021

developer

Unknown Worlds Entertainment

publisher

Unknown Worlds Entertainment

popular_tags

Open World Survival Craft,Survival,Underwater,Open World,Singleplayer,Exploration,Horror,Adventure,Base Building,Crafting,First-Person,Survival Horror,Aliens,Sci-fi,Early Access,Multiplayer,Story Rich,Atmospheric,Great Soundtrack,Sandbox

video_webm

https://cdn.akamai.steamstatic.com/steam/apps/256830049/movie480_vp9.webm

video_webm_hd

https://cdn.akamai.steamstatic.com/steam/apps/256830049/movie_max_vp9.webm

video_poster

https://cdn.akamai.steamstatic.com/steam/apps/256830049/movie.293x165.jpg

image_highlight

https://cdn.akamai.steamstatic.com/steam/apps/848450/ss_5011daad83f8494eda0826e4bbc91181239ad5d7.1920x1080.jpg

game_area_description

About This Game

Below Zero is an underwater adventure game set on an alien ocean world. It is a new 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 being 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.

Open development

Subnautica: Below Zero development is open. Get weekly or daily updates, see what the development team is working on, view real time change logs, and give feedback from inside the game. We want to hear your thoughts and invite you to participate in what we are working on.

Warning


This game contains flashing lights that may make it unsuitable for people with photosensitive epilepsy or other photosensitive conditions. Player discretion is advised.

sys_req

Windows,macOS

community_hub_url

https://steamcommunity.com/app/848450

game_url

https://store.steampowered.com/app/848450/Subnautica_Below_Zero/

game_id

848450

id: 1297
uid: cWf71
insdate: 2025-07-04 07:46:06
title: Subnautica: Below Zero
additional: 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.
category: Open World Survival Craft
md5: bddade4abaa912da333d6f27fde22b5e
game_description_snippet: 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.
game_review_summary: Very Positive
responsive_reviewdesc: - 89% of the 1,257 user reviews in the last 30 days are positive.
review_number: 1,257
release_date: May 13, 2021
developer: Unknown Worlds Entertainment
publisher: Unknown Worlds Entertainment
popular_tags: Open World Survival Craft,Survival,Underwater,Open World,Singleplayer,Exploration,Horror,Adventure,Base Building,Crafting,First-Person,Survival Horror,Aliens,Sci-fi,Early Access,Multiplayer,Story Rich,Atmospheric,Great Soundtrack,Sandbox
video_webm: https://cdn.akamai.steamstatic.com/steam/apps/256830049/movie480_vp9.webm
video_webm_hd: https://cdn.akamai.steamstatic.com/steam/apps/256830049/movie_max_vp9.webm
video_poster: https://cdn.akamai.steamstatic.com/steam/apps/256830049/movie.293x165.jpg
image_highlight: https://cdn.akamai.steamstatic.com/steam/apps/848450/ss_5011daad83f8494eda0826e4bbc91181239ad5d7.1920x1080.jpg
game_area_description:

About This Game

Below Zero is an underwater adventure game set on an alien ocean world. It is a new 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 being 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.

Open development

Subnautica: Below Zero development is open. Get weekly or daily updates, see what the development team is working on, view real time change logs, and give feedback from inside the game. We want to hear your thoughts and invite you to participate in what we are working on.

Warning


This game contains flashing lights that may make it unsuitable for people with photosensitive epilepsy or other photosensitive conditions. Player discretion is advised.
sys_req: Windows,macOS
community_hub_url: https://steamcommunity.com/app/848450
game_url: https://store.steampowered.com/app/848450/Subnautica_Below_Zero/
game_id: 848450