Subnautica 2 Guide#
Subnautica 2 is an open-world underwater survival adventure game from Unknown Worlds Entertainment, and the first mainline entry in the series to feature online co-op. It entered Early Access on May 14, 2026, priced at ¥108 on Steam in China. You play a Pioneer printed by the colony ship’s AI, surviving in the profoundly human-hostile ocean of the moon Proteus through scanning, crafting, and reworking your own genes.
This hub is built on verified facts: release details and pricing follow the Steam store page, version records follow the official update history, and story details and names follow the official wiki. Anything we have not verified is clearly marked rather than guessed at.
Game Overview#
| Item | Detail |
|---|---|
| Developer | Unknown Worlds Entertainment (parent company: Krafton) |
| Publisher | Unknown Worlds Entertainment |
| Release format | Early Access, unlocked May 14, 2026 |
| Platforms | PC (Steam / Epic Games Store / Microsoft Store), Xbox Series X|S; no PlayStation version during Early Access |
| Subscription | Joined PC Game Pass and Xbox Game Pass Ultimate on launch day |
| Price | ¥108 (China); $29.99 (US); £25.99 (UK); €29.99 (EU); the price will increase after the full release |
| Modes | Survival and Creative; single-player at its core, with up to 4-player online co-op (cross-platform) |
| Playable characters | 4 preset characters at launch; 6 total after Jegna and Grace were added in 1.2 |
| Languages | 11 interface and subtitle languages including Simplified Chinese; full voice acting in English only |
| Rating | ESRB E10+ (Fantasy Violence) |
| Download size | 50 GB per Steam |
| Early Access window | Officially estimated at 2-3 years, with content still being expanded |
What Kind of Story Is This#
The colony ship Cicada, carrying 40,000 colonists waiting to be printed, set out for the desert planet Zezura. En route, it passed through an alien phase gate without warning and crashed on the moon Proteus. The ship’s colonial support AI, NoA, began printing the first Pioneers — the players — to scout the way for the colonists who would follow.
That first batch built “Camp One,” and then died out entirely. NoA re-printed them from an earlier state and wiped their memories of the failure. As a result, the Pioneers keep finding their own corpses and inexplicably abandoned bases along the beach. That is the baseline of this game: you are not a hero — you are a tool that gets rebooted again and again.
The Core Loop#
| Stage | What you do | Verified anchors |
|---|---|---|
| Explore | Push from the shallows into the mid and deep layers | Zone depths run from 0-224 m in the shallows to a marked 3100 m at the Void |
| Scan | Scan wrecks for blueprints and creatures to fill the bestiary | Cumulative creature scans unlock passive Biomod slots |
| Craft | Unlock recipes from scanned fragments | As of 1.2, the Repair Tool unlocks after two scans |
| Modify | Collect Biomods and unlock genetic adaptations | 6 Biomods in total after 1.1; adaptations come from interacting with organic cores such as the Angel Comb |
| Expand | Build bases, build the Tadpole, and push farther out | The Tadpole is the only submersible in Early Access |
The most distinctive thread in this loop is genetic adaptation: the environment itself will kill you unless you change yourself — one of the most fundamental departures from the original game.
Depth is the real difficulty curve here: the shallows between 0 and 224 m are where you drill the scan-and-craft basics, while the marked 3,100 m boundary at the Void is the deepest point on the current map.
Systems at a Glance#
| System | How it works |
|---|---|
| Biomods | Unlocked from biolabs scattered across the world; 6 in total since 1.1, and scanning creatures opens passive slots |
| Genetic adaptations | Mutations gained by interacting with organic cores such as the “Angel Comb” |
| Bio-beds | Your respawn point is determined by the bio-bed you are assigned; as of 1.2, a rescued player can be re-printed at a bio-bed instead |
| Tadpole | The only submersible in Early Access; if it is destroyed, you can teleport back to the Tadpole pen (1.2) |
| Multiplayer | Up to 4-player co-op, cross-platform; 1.2 adds cross-platform proximity voice, rescues, and direct item swapping |
| Navigation | No built-in map in the current version — use waypoints and player-placed beacons to find your way |
Early Access Status#
The current public branch has been through two named versions: 1.1 “Adaptive Measures” (July 8, 2026) reworked the Biomod line and added two biolabs, and 1.2 “Buddy System” (August 19, 2026) brought co-op play up to a usable state. The most recent update is Buddy System Hotfix 2 on October 6, 2026. The roadmap lists the next story chapter as upcoming content, with no date given; during Early Access the main story stops on a cliffhanger.
Patch Timeline So Far#
| Version | Date | Highlights |
|---|---|---|
| Early Access launch | May 14, 2026 | Base game unlocks in Survival and Creative; 4-player co-op; 4 preset characters |
| 1.1 “Adaptive Measures” | July 8, 2026 | Biomod line reworked to 6 total; two biolabs added |
| 1.2 “Buddy System” | August 19, 2026 | Cross-platform proximity voice, rescues, direct item swapping, bio-bed re-printing, Tadpole pen teleport, Jegna and Grace join the roster |
| Buddy System Hotfix 2 | October 6, 2026 | Most recent update on the public branch |
Getting-Started Essentials#
- Don’t rush into the deep right away: the shallows through the southern runway area (within 0-224 m) are enough to drill the scan-and-craft loop until it is second nature.
- Scan anything you have not scanned yet: scanning both unlocks blueprints and advances the passive Biomod slots.
- Treat return oxygen as a hard constraint: not “keep going while oxygen lasts,” but “only keep going once you have set aside enough to get back.”
- Build a Tadpole early: it is the only submersible in the current version and solves speed and cargo capacity in one move.
- Assign roles before teaming up: four people with separate jobs are far more effective than four people doing the same thing; 1.2’s proximity voice exists precisely to support that division of labor.
- Accept the way things are: there is no built-in map in the current version — use beacons instead of memorizing the seafloor.
Related Games#
- Valheim — a Viking survival crafting game built on the same gather, build, and venture-farther loop
- Palworld — an open-world survival crafting game with creature companions and online co-op
- Minecraft — the sandbox survival classic about gathering, crafting, and building
- Dune: Awakening — an open-world survival game where the environment itself is the deadliest threat
- Enshrouded — a survival crafting game centered on exploration, base building, and pushing into dangerous depths
Related Rankings#
Best Survival Crafting Games · Best Open World Games · Best Co-Op Games
Full Guides#
In-depth sub-guides — beginner basics, story and lore, biomes, creatures and leviathans, crafting and Biomods, base building, co-op play, and the update timeline — are available in Chinese on NTGame’s Subnautica 2 section.
If you read Chinese, the update-timeline sub-guide there carries the full patch-by-patch record behind the table above.