Subnautica 2 Guide Hub — Early Access Status, Sales & Roadmap

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Subnautica 2 is Unknown Worlds Entertainment's underwater survival sequel, in Early Access on PC and Xbox Series X|S since May 14, 2026. We have no live-stats API for this game the way we do for Roblox titles, so this hub is built from Unknown Worlds' own Steam listing and news posts rather than a tracker's paraphrase. Reading the Steam store page on August 18, 2026, the game carried a 93% positive rating across 70,900 all-time reviews.

Coverage stance: We have Unknown Worlds' own Steam listing, its own Early Access news posts, and dated press coverage of the May 14, 2026 launch and the ongoing Krafton dispute — and nothing else. We have not played Subnautica 2, so this hub carries no build advice, no strategy tips and no invented mechanics. Codes are covered on a separate codes page, where every signal is dated rather than marked "active."

What Is Live Right Now

The following comes from Unknown Worlds' own Steam store listing, checked August 18, 2026, and the studio's own August 12, 2026 news post — not from a tracker's summary.

Publisher listing. Reading the Steam store page today, Unknown Worlds Entertainment is named as both developer and publisher; Krafton does not appear. That matches Game Developer's April 23, 2026 report, which recorded Krafton as already removed from the Steam and Epic listings, with the change's permanence left unresolved.
Experimental branch. Unknown Worlds' August 12, 2026 news post describes an opt-in Experimental branch, reached via Steam's Properties → Betas menu or the Xbox Insider Hub, for previewing upcoming content early. Saves are not compatible between the Experimental and main branches, and the post says the branch won't update daily — only ahead of major releases or smaller patches.
Price notice. The same Steam listing states, in the developers' own words, that the price of Subnautica 2 will increase once Early Access ends.

Illustration of a submersible cockpit interior with holographic status readouts and warning icons, dim water pressing against the viewport — Original illustrationUnknown Worlds' own August 12, 2026 post describes an opt-in Experimental branch for previewing upcoming content before the main build. Not a screenshot of the actual test-branch interface, and not a capture from the game.

Background

Subnautica 2 entered Early Access on May 14, 2026 on Steam, the Epic Games Store and Xbox Series X|S. Per Worthplaying's report dated May 21, 2026, the game sold 1 million copies in the first hour, 2 million within 12 hours, and topped 4 million within five days. Game Informer's May 15, 2026 report separately recorded a peak of 651,000 concurrent players across Steam, the Epic Games Store and Xbox. Unknown Worlds' own roadmap, covered by TheSixthAxis on May 26, 2026, names two near-term updates with no fixed dates: EA 1.1 for biomod, wreck and vehicle-docking fixes plus a sprint feature, and EA 1.2 for co-op tools including voice chat, emotes and reviving.

The launch followed a public dispute between Krafton and three Unknown Worlds executives over a $250 million earnout. Per Gamefile's March 19, 2026 report, a Delaware Chancery Court judge ruled on March 16, 2026 that Krafton had breached its contract by terminating the executives, and ordered CEO Ted Gill reinstated with authority over Early Access release decisions. Game Developer's April 23, 2026 follow-up recorded the dispute as still unresolved on whether Krafton wrongfully impaired the earnout.

Illustration of a wrecked colony-ship hull sinking through sunlit alien ocean water, debris and small sea creatures around it — Original illustrationSubnautica 2 launched into Early Access May 14, 2026 and passed 4 million copies sold within five days, per Worthplaying's May 21, 2026 report. Not a screenshot, and not a depiction of the game's actual ship model.

How the Game Works

Per Unknown Worlds' own Steam listing and Early Access announcement, Subnautica 2 is a survival adventure set on a new alien planet after a colony ship is lost, in which players build bases, craft tools and explore biomes and creatures either alone or with up to three friends in online co-op — the series' first entry to support multiplayer. The new Tadpole vehicle is built around interchangeable chassis modules, covered in our own Tadpole guide. That is the extent of what Unknown Worlds states first-party. We have not played Subnautica 2, and we are not describing combat mechanics, creature behaviour or progression pacing beyond what the studio itself has published.

Illustration of a small two-seat submersible with a rounded canopy gliding past glowing coral formations in deep water — Original illustrationThe Tadpole vehicle and up to 4-player online co-op are both stated on Unknown Worlds' own Steam listing. Not a screenshot, and not a depiction of any real vehicle model from the game.

Official Channels

Where to go for first-party information. We link these without nofollow because we have checked them and stand behind them, unlike the third-party press coverage cited above.

Subnautica 2 on Steam — the store listing this hub's lede and "What Is Live Right Now" section are read from.
Unknown Worlds News — the studio's own Early Access, patch and roadmap posts.
Subnautica official site — the franchise's publisher-run hub.

Subnautica 2 Guides

Subnautica 2 Tadpole Guide — Build, Upgrades & Tips

Fragment locations, crafting materials, Moonpool setup and upgrade modules for the Tadpole vehicle.

Subnautica 2 Beginner Tips — 10 Pain Points Solved

Fixes for the most common first-session frustrations on Planet Proteus.

Subnautica 2 Base Building Guide

Where to build, what to build first, and power management basics.

Subnautica 2 Keycodes — All Locked Door Codes

Every keycode location, including the Tadpole Pens locked door code.

Subnautica 2 Silver Locations Guide

Where to find Silver fast, with marked cave locations and a farming route.

Codes

Subnautica 2's only source-listed code signal is a Bilibili livestream cosmetic code for a Seamoth Decoration, distributed during the launch livestream and listed with an expiry of July 1, 2026 — now expired. Codes are entered through Settings → Debug/Info → Register Item Code, per the official Subnautica 2 help centre. Full detail, sources and the Reaper Leviathan Statue non-code are on the codes page.

Illustration of a single glowing hexagonal token resting on a submerged console panel, faint reward shapes around it — Original illustrationThe one source-listed code signal is a Bilibili livestream Seamoth Decoration code, listed with a July 1, 2026 expiry that has now passed. Our illustration of the idea of a code, not a picture of the redemption screen.

Go to Subnautica 2 Codes →

One expired source-listed signal, the official redemption steps, and the statue that needs no code at all.

Update Rule

We do not state a sales figure, roadmap item or dispute detail without an official page or a dated report behind it, and we do not mark a code as active just because another page says it is. This page records what was checked, and when.