Start Here
First hour: water, oxygen, Titanium, the portable locker and the NOA signal route that unlocks everything.
Complete Early Access route: Welcome Center, every Blackbox, the Tadpole, Angel Comb and the final power plant sequence.
Is there crossplay? How long is the game? How do I heal? Death and respawning, roadmap and common blockers.
Systems & Survival
Oxygen, health, hunger & thirst, Biomods, crafting, power and the scanner economy — explained simply.
Titanium to Strontium — where each material hides, what it unlocks and the fastest farming route.
Shallows, Coral Gardens, Graveyard, Axum Ruins and the hot biome — landmarks, threats and route planning.
Wildlife & Tech
Leviathans, predators and hazards — threat levels, habitats and how to survive each one.
Tadpole fragments, Sonic/Feedback Resonator, Air Tanks and every tool unlock route.
Subnautica 2 entered Early Access on 14 May 2026. This collection is a dated reference, not a complete current-build inventory; see the developer’s updates for shipped content and future plans.
The EA rhythm: update, verify, adapt
Early Access means the guide and the game move together: each update can shift a route, add a creature or rewrite a recipe, so every page here carries its own last-updated date and the FAQ calls out what changed most recently. The habit for players is the same as the habit for the guide — re-check the roadmap after each update before committing a long route or a big base build.
Starting route in one paragraph
Scan the shallows, build the standard air tank first, farm the cave below the lifepod for silver, unlock the Tadpole fragments in the coral gardens, and push east only once the Resonator is online. Everything else in this guide is elaboration on that spine — when in doubt, the resource index and the vehicle pages tell you what the next hour of play should be buying.
FAQ
What this guide covers
Subnautica 2 entered Early Access on 14 May 2026. This collection is a dated reference, not a complete current-build inventory; see the developer’s updates for shipped content and future plans.
Buddy System hotfix context
The 1 September 2026 hotfix updates save compatibility tracking and fixes multiplayer inventory, vehicle oxygen and base issues. Match the build and branch when comparing saves or planning a co-op session. Do not assume a save from a newer build can be opened in an older one.