Subnautica 2 - PC & Xbox Series X|S (Microsoft Store)

Subnautica 2 is an underwater survival adventure set on a mysterious new alien world. It's the next entry in the Subnautica series from developer Unknown Worlds. With conflict tearing your homeworld apart, Alterra offers you a fresh start. But during the voyage aboard the colony ship CICADA, something goes wrong — and the vessel's AI insists the mission must press on. Marooned against overwhelming odds, you'll need every ounce of ingenuity to stay alive. Humanity's future on this world rests in your hands.

PLAY SOLO OR TEAM UP

Subnautica 2 is built as a single-player experience that you can also take online in co-op with up to three friends. Pick from four ready-made characters at launch, with more characters and customization options rolling out across Early Access. Join forces to explore long-lost ruins and learn to survive on a planet that may not want you around.

ADAPT TO SURVIVE

Surviving the depths and making this planet home means making the most of every tool you've got. Cruise through vibrant, breathtaking biomes in your Tadpole submersible. Build and customize bases to fall back on when your expeditions carry you past the safety of the shallows. As Early Access grows, so will your lineup of tools, equipment, and vehicles — with upgrades that push past your limits and unlock the secrets of this strange world.

EXPLORE THE UNKNOWN

Scan and study a rich world of biodiversity to make sense of life on this planet. Encounter everything from the tiniest creatures to colossal Leviathans, and experience the wonder — and occasional danger — waiting around every corner. Each dive is a chance to learn why the ship's AI is so set on continuing the mission, and what secrets lie hidden beneath the surface of this stunning new frontier.

BUILT FOR EARLY ACCESS

Subnautica 2 is an Early Access title under active development. Along the way, we'll keep growing the world with new biomes, creatures, and craftables while deepening the story. You may run into bugs, in-progress features, and performance hiccups. Your feedback sits at the heart of how we build the game — join us and help shape the next chapter of the Subnautica universe.

MADE BY UNKNOWN WORLDS

Subnautica 2 comes from Unknown Worlds, the studio behind the award-winning Subnautica and Subnautica: Below Zero. What started with the 2003 Half-Life mod Natural Selection has grown into a fully remote, globally distributed team stretching from the United States to the United Kingdom, France, Australia, and beyond. Driven by a philosophy of open development and over a decade of community-focused innovation, we invite you to dive back into the depths with a studio committed to pushing the survival genre forward.

Welcome aboard, Pioneer.