Subnautica: Below Zero

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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.

Developer: Unknown Worlds Entertainment
Released: 14 May 2021
Price: $29.99
Platforms
Followers: 246,701
Steam Deck: Verified
Languages: English +18
Controller: Full
Series: Subnautica
Age rating: E10

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Update posts

0 posts

Posts announcing an update, tagged as patch notes or not

Last 90 days · as of 19 Oct, 22:07 UTC

How this is measured

Posts in a game's official Steam news feed that announce an update: tagged as patch notes by the developer, or plainly about a patch or a released update.

News checked every 7 days. Observed since 19 Oct 2026.

An announcement is not a build. Developers can ship updates without a post, or post about several updates at once.
Untagged posts are recognised from their words, so a few updates are missed and a few other posts may be counted. Tagged posts are marked Patch notes on the Updates tab; recognised ones are marked Update.
Older posts are being read back through each game's history, most played games first, so months before October 2026 fill in over the coming days.

Source: Steam Web API, ISteamNews/GetNewsForApp. Full methodology

Announcements

Subnautica Free Weekend & Series Sale
1 Apr 2026 · Community Announcements
Below Zero Security Hotfix Patch notes
3 Oct 2025 · Community Announcements
Below Zero 2025 Patch Patch notes
12 Aug 2025 · Community Announcements
Subnautica 2 Early Access Coming 2025
18 Oct 2024 · Community Announcements
Teeny-Tiny Hotfix Patch notes
4 Oct 2022 · Community Announcements
What the Dock Update Update
13 Sept 2022 · Community Announcements
Thank You for the Steam Awards Nomination!
23 Dec 2021 · Community Announcements
Language Pack Patch Patch notes
18 Aug 2021 · Community Announcements
Below Zero 1.0 Released! Update
14 May 2021 · Community Announcements
Launch Livestream
13 May 2021 · Community Announcements
Subnautica: Below Zero Original Soundtrack Released
30 Apr 2021 · Community Announcements
Watch the New Below Zero Trailer
13 Apr 2021 · Community Announcements
We Are Disabling Steam Cloud Saves Patch notes
8 Apr 2021 · Community Announcements
Seaworthy Update Update
25 Feb 2021 · Community Announcements
Subnautica: Below Zero Price Increasing
16 Dec 2020 · Community Announcements
Teeny-Tiny Update Patch notes
4 Dec 2020 · Community Announcements
Relics of the Past Update Update
29 Oct 2020 · Community Announcements
Stranger Pings Update Update
13 Aug 2020 · Community Announcements
Salad Days Update Update
25 Jun 2020 · Community Announcements
Subnautica: Below Zero State of the Project (May 2020)
22 May 2020 · Community Announcements
Frostbite Update Update
30 Apr 2020 · Community Announcements
How We Approach Story
17 Apr 2020 · Community Announcements
Below Zero Story Changes & Save Games
5 Mar 2020 · Community Announcements
Lost Ship Update Update
19 Feb 2020 · Community Announcements
Deep Dive Update
27 Nov 2019 · Community Announcements
The Future of Below Zero's Story
22 Nov 2019 · Community Announcements
Ice Worm Update Update
17 Sept 2019 · Community Announcements
Experimental Beta Updates & Risks Patch notes
25 Jul 2019 · Community Announcements
Arctic Living Update Update
17 Jul 2019 · Community Announcements
Spy Pengling Update Update
5 Jun 2019 · Community Announcements

From the game’s Steam news feed, last checked 19 Oct, 22:07 UTC. An announcement is not a build: games can update without posting. Every public build we saw is on the Builds tab.

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