Five million copies sold in less than two months. That is the number sitting behind Subnautica 2's first Early Access update, which Unknown Worlds pushed live this week after the game crossed that milestone in early June. The sequel launched into Early Access on May 14, and the studio has now delivered on its promise to develop the game openly, with this first patch built directly around player feedback.
What the Biomod expansion actually changes
The headline addition is a meaningful expansion to the Biomod system. For those still getting their bearings, Biomods let players temporarily borrow traits from nearby creatures, essentially absorbing abilities from the ocean around them. At launch, four Biomods were available. This update adds two new Biolabs located in the Coral Gardens and Axum Ruins, bringing the unlockable total to six.
The key here is how players unlock additional passive Biomod slots. Scanning targets with the Bioscanner now rewards extra passive slots, which gives the early-game progression loop a bit more breathing room. You are not just scanning for the PDA Databank anymore. Every scan has tangible upside.
Co-op sessions just got a lot less chaotic
Anyone who has played Subnautica 2 with friends has probably experienced the audio log problem. You pick up a log, it plays immediately, and suddenly your co-op partner is hearing story dialogue mid-fight with a creature they were not expecting. That is fixed now.
Audio logs no longer auto-play on collection. Players can trigger them manually through the PDA Databank, which means shared sessions run cleaner and nobody gets a story beat dropped on them at the wrong moment. It is a small quality-of-life fix that makes a noticeable difference in practice.
Exploration, survival, and base building all touched
Beyond the Biomod additions, the update spreads its changes across several systems. Wrecks now feature additional routes and oxygen-based puzzles, giving exploration more structure. Players can sprint on land now, covering surface terrain and interior bases on foot without the sluggish pace that previously made above-water movement feel like an afterthought.
Base building gets some practical improvements too. The Tadpole Dock and Fabricator have better placement options, and a new dedicated storage structure has been added. Unknown Worlds also notes rendering improvements, creature behavior adjustments, and UI refinements across the board.
Fernando Melo, Executive Producer at Unknown Worlds, put it plainly: "With this update, we focused on refining the early-game experience and core systems. We'll continue shaping the world of Subnautica 2 together with our players throughout Early Access."
That framing matters. The studio is treating Early Access as a genuine feedback loop, not a pre-launch holding pattern. Five million sales in roughly seven weeks suggests players are invested enough to stick around and help shape what comes next.
What this means for players going deeper
This first update is targeted at the early-game experience, but the roadmap extends well beyond what is currently live. New biomes, creatures, and story chapters are all confirmed for future updates. You can check the full Subnautica 2 Early Access roadmap to see everything planned across the Early Access period.
For players just jumping in or looking to get the most out of the current build, the Subnautica 2 guides collection covers everything from day-one setup to the confirmed new features waiting further down the line.
