Subnautica 2 Guide (Early Access)

On this page

AI-generated concept illustration of divers exploring an alien coral reef; not game footage. — AI-generated concept illustration by Luminesca. Not official artwork or a gameplay screenshot; the scene does not establish a specific location, character or game mechanic.

This collection was rebuilt on 30 September 2026 around a simple rule: publish what official material supports, label what was withdrawn, and record where every topic stands. Subnautica 2 entered Early Access on 14 May 2026; its content is still moving, so version dates matter as much as the text.

Reference review: 30 September 2026 · Early Access 1.2 (Buddy System) and the 1 September hotfix

Coverage status

The following pages carry review dates and state exactly what they cover. Entries marked withdrawn failed a source check and remain online only as correction notices, without ads.

CreaturesWhat official material confirms about the Early Access roster, and the twelve withdrawn entries.rebuilt 30 Sep 2026 Vehicles & ToolsThe confirmed Tadpole submersible and tool list, plus the sixteen withdrawn entries.rebuilt 30 Sep 2026 Biomes & MapMap routes were withdrawn on 26 September 2026; this page records what the official updates establish.correction notice ResourcesResource entries were withdrawn pending version-specific evidence; a handful of named resources remain.correction notice SystemsEarly Access reference for Biomods, base building, co-op and progression.under source review BeginnerStarting points for the first hours of the Early Access build.under source review WalkthroughProgression notes for the Early Access build; detailed route claims are under review.under source review FAQCommon questions answered from official material where available.under source review Subnautica 2: prepare a co-op session and a recovery planUse Buddy System voice, trading and revive features deliberately, then record host/client differences before a shared dive.

What official material establishes

Launch, 14 May 2026 — Early Access with four confirmed biomes and five confirmed creatures, two of them Leviathan-class. Official updates do not publish creature statistics or drop tables.
May 2026 patches — resource-area additions and fauna AI changes; patch notes describe the changes without a full content inventory.
Adaptive Measures, 8 July 2026 — two Biolabs, Biomods raised from four to six, Bioscanner scans unlocking extra Biomod slots, and a Sonic Resonator stun that deters creatures without killing them.
Buddy System, 19 August 2026 — proximity voice chat, player revives and trading, emotes, and Tracking Tags.
Hotfix 1, 1 September 2026 — save checks, several base and vehicle fixes, and a Collector Leviathan pathing fix.

The Tadpole submersible is the first confirmed player vehicle, described with modular attachments; no official step-by-step unlock sequence has been published, and this site no longer reproduces one.

How this guide is maintained

Each page carries its own review date. When a claim cannot be tied to an official announcement, a patch note or a dated in-game capture, it is withdrawn rather than reworded, and the withdrawal is recorded on the page itself. Community wikis are useful starting points but disagree with each other on names, numbers and locations; where they disagree, this guide does not pick a winner and present it as fact.

Sources and scope

Official hotfix notes · Official Steam page. This is a fan-made reference, not affiliated with Unknown Worlds; it records the state of our coverage and does not certify gameplay behaviour. Verify version-sensitive details in your installed build.