Subnautica 2 is now locked for Xbox Game Preview on May 14, and Xbox players will not need to buy it separately if they are subscribed to the right Game Pass tier. Xbox confirmed that Unknown Worlds' underwater survival sequel will be available on Xbox Series X|S, Xbox on PC, ROG Xbox Ally, Xbox Game Pass Ultimate and PC Game Pass when it arrives in preview form.
The May 14 date itself was already confirmed by Unknown Worlds last week, but this update gives the Xbox version a clearer shape. Subnautica 2 is being treated as part of the wider Xbox ecosystem from day one, with Game Pass access, controller work, cross-platform multiplayer invites and a default graphics preset for ROG Xbox Ally.
Subnautica 2 moves the series away from Planet 4546B and into a new alien ocean world. Players are part of the crew aboard Alterra's CICADA ship, which has been tasked with finding a home for 40,000 people. As usual for Subnautica, the plan does not survive first contact with the planet's depths.
The biggest series change is co-op. Subnautica 2 can still be played solo, but it also supports optional multiplayer with up to three friends. Xbox's post says players can invite Xbox friends directly, while Unknown Worlds programmer Sam Dark said the same menu can also be used to bring in friends on other platforms.
"You can play with your Xbox friends, as well as your friends on other platforms, as easily as opening the menu and inviting them to your game."
Unknown Worlds is tuning the sequel for Xbox
Unknown Worlds says the Xbox version has shaped the broader technical work on Subnautica 2. Core Tech Lead Snorri Sturluson said the team used Unreal Insights to analyze performance on Xbox, with improvements on the fixed console platform also helping other versions.
The studio has also been paying close attention to controller play. Sturluson said the Xbox controller is one of Subnautica 2's primary input methods, which matters for a survival game where building, crafting, scanning and quick reactions all have to work cleanly without a keyboard and mouse.
The ROG Xbox Ally is part of that same push. Senior QA Analyst Rob Hamiter said the handheld will use a default ROG Ally graphics preset, while still letting players adjust graphical settings for performance or fidelity. He also said the device's analog controls were a focus during setup.
The first version starts a longer voyage
The Xbox store page describes Subnautica 2 as an action-adventure survival game about building bases, crafting tools and exploring the mysteries of a new ocean planet. The Game Preview label also means this is not the finished 1.0 release. Unknown Worlds has previously said the game will grow through years of early access development.
That makes May 14 the start of Subnautica 2's public development voyage, not the final destination. The important news for Xbox players is that the sequel will be playable on console, PC and Game Pass at launch, with co-op arriving as a headline feature instead of a late addition.