Original illustration of a deep alien ocean with light rays, coral spires, glowing jellyfish and a distant giant tree.

Original AI illustration · Not a game screenshot

Independent fan guide

Subnautica 2

Survive the alien moon Proteus after the colony ship Cicada crashes. Find resources, adapt your body, build bases and pilot the Tadpole deeper, alone or with up to three friends in co-op.

  • Early Access since May 14, 2026
  • Buddy System Hotfix 2 · Oct 6, 2026
  • 4-player co-op
  • 3 leviathans so far
  • 91% positive on Steam

01 / Start here

Your Subnautica 2 Journey

Start with the basics, then pick the goal for your next dive.

Official resources

Watch, play and join in

Open the official website, watch the Early Access trailer and join the official community.

02 / Choose a direction

Find your next objective

The questions players search most right now, each answered in one focused guide.

03 / Dive notes

Guides for surviving Proteus

Practical steps for your next objective, with sources and a review date.

04 / The game

What is Subnautica 2?

Subnautica 2 is an underwater survival adventure by Unknown Worlds set on Proteus, an alien ocean moon where the colony ship Cicada crashed off course. You manage oxygen, food and water, scan lifeforms, gather resources and craft tools from blueprints left by earlier pioneers.

It entered Early Access on May 14, 2026, adding co-op for up to four players. Free updates such as Adaptive Measures and Buddy System have added Biomod slots, sprinting, proximity voice chat, revives and player trading, with more biomes and story planned for later expansions.

Explore all guides ↗
Developer
Unknown Worlds Entertainment
Platform
Steam, Epic Games Store, Xbox Series X|S
Genre
Underwater survival adventure
Early Access
May 14, 2026
Latest update
Buddy System Hotfix 2
Co-op
Up to 4 players
Steam reviews
91% positive
Source: subnautica.com ↗

05 / Codes

Codes: the short answer

No public redeem codes found

No public reward or promo codes for all players were found in the official sources reviewed. The Tadpole Pens door needs the Kurul Level Access Key, not a number code.

What codes exist in the game →

Treat any site offering free codes, keys or code generators with caution.

Reviewed Official news ↗

06 / Choose your language

Read in your language

Guides are available in English, German, French and Brazilian Portuguese. In-game item names follow the official English wiki.

How we work

Know where the advice comes from

We check the official Subnautica 2 wiki, Unknown Worlds announcements and official store pages, explain recommendations and label anything unconfirmed. Every guide lists its sources and review date.

Our editorial approach ↗

Ready to dive?

Ready to master Subnautica 2?

From your first dive out of Sleep Bay 3 to the deep Void, these guides cover what to find, build and avoid next, with sources and review dates.