- Adventure
- Indie
Game
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.
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.
About Subnautica: Below Zero
- Released
- May 2021
- Developer
- Unknown Worlds Entertainment
- Engine
- Unity
- Platforms
- Xbox Series X|S · PlayStation 4 · Nintendo Switch 2 · PC (Microsoft Windows) · PlayStation 5 · Mac · Xbox One · Nintendo Switch
Where to get it
Release, studio and platform data from IGDB. Store links go to the sellers, not to us. We do not sell games and we do not host files.
Browse everything
Sorted, filterable and paged. Every link goes to the author’s own download.
- Mods476A mod changes the game itself. It needs something to load it, it may need other mods first, and it only works on the versions its author built it for.
- Frameworks23A framework is modding infrastructure rather than content: an API, injector or utility that other mods run on top of, or that helps you install, patch or manage them.
From the developers
Official announcements, newest first. Posted on Steam.
- Community AnnouncementsSubnautica Free Weekend & Series SaleHello Subnauts, With Subnautica 2's Early Access launch on the horizon, we're hosting a Free Weekend for Subnautica, the game that started it all. From April 2nd at 10:00 AM PT through April 6th at 9:59 AM PT, you can play Subnautica for free. If you haven't explored the vast oceans of Planet 4546B yet, or you want to invite a friend to try it out, now is the perfect time!What’s waiting for you...
- Community AnnouncementsBelow Zero Security HotfixWe have released a hotfix today that addresses a security-related concern raised to us by Unity. You can read more about the specific issue here: While the update patches out the flaw, Unity has said that, to their knowledge, no one has exploited the issue to date, and no players have been at risk. To help ensure that this security flaw can never be exploited on Subnautica or Below Zero, we hav...
- Community AnnouncementsBelow Zero 2025 PatchWe’ve just released a brand new patch full of bug fixes and improvements for Below Zero! This update will roll out worldwide and might take some time to appear across the globe. PC & Console Added a pop-up newsfeed that can be used for one-time-only announcements.Fixed a rare bug that would stop the game world from streaming in and make the game unresponsive when attempting to save in some case...
- Community AnnouncementsSubnautica 2 Early Access Coming 2025We’re thrilled today to unveil the first teaser trailer for Subnautica 2 and announce that we’ll be heading to Early Access in 2025! 🥳 Store pages are now live and you can wishlist Subnautica 2 on Steam. Our goal has always been to bring Early Access to as many of our community as possible, and we’re excited to develop Subnautica 2 from the start alongside more of you than ever before! Keen ey...
- Community AnnouncementsTeeny-Tiny HotfixHello Subnauts! We’ve released the Teeny-Tiny Hotfix - a patch to resolve a few bugs from our last update What the Dock. Fixes: Ambient water particles are now showing correctly Fix to allow new screenshots can be cycled through after deleting older screenshots again Thank you to everyone who reported bugs to us. As always, keep in touch and let us know if you have any persisting issues! - Unkn...
- Community AnnouncementsWhat the Dock UpdateA new update is available for Subnautica: Below Zero. Tailor your Below Zero experience with Custom Game Mode Utilize an all-new Seatruck Dock base piece Enjoy the most stable version of the game with tons of bugs squashed Get yourself out of some sticky out-of-bounds situations with an Unstuck Button Steam Cloud saves are back (yes, for real this time!) Custom Game Mode {STEAM_CLAN_IMAGE}/3438...
- Mods indexed
- 499
- Versions
- 1
- Newest tracked
- Build 20245197
- Most disruptive update
- No breakage data for this game
Most downloaded
Measured from the source's own counts, summed across every release.
- QModManager 4481.5k downloads
- Map316.5k downloads
- SMLHelper Zero236.7k downloads
- Tobey's BepInEx Pack for Subnautica Below Zero180.6k downloads
- EasyCraft176.3k downloads
- More Quick Slots150.1k downloads
- Slot Extender Zero (BepInEx - Nautilus)146.5k downloads
- VersionChecker - A version checking utility for Subnautica Below Zero mods126.8k downloads
- Advanced Inventory126.2k downloads
- SnapBuilder - Snap-to-Grid for Subnautica Below Zero110.4k downloads
- Nautilus BZ107.6k downloads
- Seatruck Speed Upgrades (BepInEx - Nautilus)96.4k downloads
- Seatruck Storage (BepInEx - Nautilus)91.3k downloads
- UnityAudioEnablerAudio enabler for both Subnautica and BelowZero to allow mods to use Unity Audio instead of FMOD84.0k downloads
- MirrorInternalLogsMirrorInternalLogs pack for Subnautica. Preconfigured83.5k downloads
- Seatruck Armor Upgrades (BepInEx - Nautilus)81.1k downloads
- Seatruck Depth Upgrades (BepInEx - Nautilus)80.7k downloads
- Seatruck Scanner Module (BepInEx - Nautilus)79.6k downloads
- Advanced Storage65.7k downloads
- Seatruck Arms (BepInEx - Nautilus)63.2k downloads
- MoonPoolVehicleRepair Below Zero60.0k downloads
- BepInExPackBepInEx pack for Mono Unity games. Preconfigured and ready to use.58.7k downloads
- Terraforming Ability58.5k downloads
- Full detailed map54.2k downloads
Browse all 476 Subnautica: Below Zero mods Sortable by downloads, rating and date.
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Why Subnautica: Below Zero mods break
A mod is compiled against one version of a game. When the game updates, anything that reached into the parts that moved stops working, and it usually stops working silently rather than with a message that explains itself.
That is what the table above counts. It is not a guess: each row is a mod the community has reported as broken by that specific release. The number is a fair measure of how disruptive an update was, and it is the reason people delay updating a game they have modded heavily.
Common questions
Does IndexGG host Subnautica: Below Zero mods?
No, and it never will. Every download link points at the author's own page on Nexus, GitHub, CurseForge or wherever they published it. We index the ecosystem; the files stay with the people who made them.
Where does the compatibility data come from?
From the communities that maintain it in the open, not from guesswork. Each claim carries how it is known, so a reported breakage is never presented as though the author said it.
Why is a mod listed as broken when it works for me?
Compatibility depends on your exact game version and the rest of your load order. A mod marked as broken in one release may work fine on an older one, which is exactly why the version is recorded next to the claim rather than a bare yes or no.