Subnautica 2 Updates & Patch Notes Tracker

Anthony Gallegos introduces the developer-vlog series for the next major content update. The opening announcement gives no EA2 release date. Watch the official video and compare the preview with the released Buddy System updates.

Fixes Scanner Station resource accuracy, generator and turbine power after an area reloads, Tadpole docking and boundary recovery, voice activity detection, Overgrown Ruins currents and black box names. Shiver Leviathans no longer interact with unpiloted vehicles. DLSS Dynamic FrameGen disables VSync; Xbox audio memory use and crash reporting also receive fixes.

The official follow-up patch to EA 1.2 Buddy System adds save build and branch metadata checks, fixes the save/version tooltip and platform-write logging, restores affected in-progress Axum Powerplant Turbines, returns wall-rack items on Refund Base, fixes Proximity Chat push-to-talk, and addresses base, co-op, Collector Leviathan, Water Slug, Scout Ray, Tadpole, UI, compile, crash, and stability issues.

The Buddy System update is live. It adds proximity voice chat, player revives before reprinting, direct player trading, five emotes, Tracking Tags, new Jegna and Grace character options, multiplayer/base-building improvements, and a large set of community-marked bug fixes. Restart Steam if the update does not appear.

The opt-in Steam Experimental branch previews upcoming releases and fixes before they reach the wider Early Access build. Treat it as a disposable test channel: builds may contain game-breaking bugs, saves are stored separately, and saves cannot be imported or exported between Experimental and the main branch.

Hotfix 4 was the first hotfix after Update 1 Adaptive Measures. At the time it fixed Angel Combs not opening for some players (a progression blocker), water currents appearing inside player bases that could block movement and building, the FOV slider not showing on Xbox, and two low-volume crashes on Xbox session-invite join and creature spawn. Buddy System Hotfix 2 followed on October 6.

The first content update after launch replaced Hotfix 3 as the patch baseline before Hotfix 4. It adds two new Biolabs in Coral Gardens and Axum Ruins, raises unlockable Biomods from four to six, adds Bioscanner scans that unlock extra passive Biomod slots, lets Survival Multitool hits and Sonic Resonator stuns deter creatures without killing them, and adds a FOV slider plus on-land and in-base sprint.

Unknown Worlds says the team is pivoting from frequent rapid hotfixes toward the EA1.1 update, expected in a few weeks. Treat this as a roadmap and cadence signal, not a new patch note.

Unknown Worlds upgraded DLSS to 4.5, fixed DLSS crashes and settings persistence, restored Frame Generation availability in affected versions, reduced Interior Wall costs to one quarter of the previous price, adjusted Hammerhead, Nibbler, and Marrowbreach behavior, fixed rare startup crashes, fixed multiplayer clients reverting position on rejoin, fixed Strike Armor stacking, and fixed Tadpole Haul Chassis goggles staying visible.

Unknown Worlds added more Silver and Troilite resource areas, reduced Hammerhead attraction to Tadpole lights, fixed several Tadpole / crash issues, improved Epic-setting performance, and revised Terms, Privacy, and telemetry messaging.

Unknown Worlds acknowledged feedback around hostile creature readability and mitigation, then listed upcoming tuning areas: aggression timing, aggro range, flare effectiveness, Survival Tool effectiveness, and creature interactions with vehicles and bases.

Unknown Worlds lists Hotfix 1: improved AMD / DirectX 12 startup error guidance, fixed an infrequent Ping crash, changed analytics to start only after Terms acceptance, reduced backend data volume, and noted Xbox rollout depends on certification.

Subnautica 2 entered Early Access at 08:00 PDT / 15:00 UTC on Steam, Epic, Xbox, and PC Game Pass with 4-player crossplay co-op.

Unknown Worlds released the Early Access gameplay trailer and repeated launch timing, price, storefront, Discord, and update entitlement details.

Unknown Worlds published the account-linking flow for Twitch Drops, including the note that linking is done after the May 14 Early Access launch.

Unknown Worlds announced a Reaper Leviathan Statue blueprint for eligible Early Access launch purchases, with a separate Microsoft Store bundle note.

Unknown Worlds announced a limited in-game decoration for qualifying Early Access purchases.

Xbox lists Subnautica 2 for Game Pass Ultimate and PC Game Pass at launch.

Future updates are expected to expand biomes, creatures, craftables, tools, vehicles, story, fixes, and optimization.