Subnautica 2 is an underwater survival adventure game set on a brand new alien ocean world. It is the next chapter in the Subnautica universe, developed by Unknown Worlds.
New world, new adventure
A new world awaits alongside a whole new story. You are a pioneer traveling to a distant world, but something is wrong. The ship's AI insists you continue the mission. This world is too dangerous for humans to survive… Unless you change what it means to be human. What creatures, intelligent or otherwise, await your arrival?
Explore with friends
Play alone or with up to three friends in online multiplayer co-op. Whether you're exploring mysterious ruins, building custom bases, or venturing deeper into the world… The challenge of this planet will test your ingenuity and adaptability in unexpected and curious ways.
Create submersibles, gear and bases
Survival depends on using the right tools. In addition to basics like the scanner and flashlight, you'll find recipes for more advanced tools, equipment, and submersibles. Bases are more customizable with an overhauled construction system. New tools allow greater adaptation to the world.
Discover various new biomes
From towering underwater cliffs to lush coral fields, this aquatic alien world is filled with vibrant and breathtaking biomes, each filled with diverse ecosystems and unique creatures. But something is wrong. The world is unbalanced. What happened here? what happened to you More importantly, where are you?
Study mysterious life forms
Discover a rich world full of mysterious life forms, from the smallest fish to the largest Leviathans. Scan creatures to learn more about them. Use the Biosampler to take samples for study. As you learn more about this world, evolve your genetics to adapt your body for survival.
Survive terrifying depths
This world is vast and deep. Venture beyond the safety of shallow waters, descending into an unknown darkness. Wonder and danger lurk around every corner. To survive this planet, you will have to push your boundaries and unlock the secrets of this strange world.
About the Team
Subnautica 2 is created by Unknown Worlds, a completely remote studio that traces its roots back to the Half-Life Natural Selection mod from 2002. It's the same studio that created the original Subnautica. The team is spread across the globe, from the United States to the United Kingdom, France, Iceland, Austria, Australia, Canada, India and many other places.
Early access development
Subnautica 2 will be an Early Access game, meaning it will be in active development at launch. You may encounter bugs, features under development, and performance issues. We'll be adding additional biomes, creatures, crafting items, and narratives as we go along. Join us in Early Access and help shape the future of Subnautica 2.


- Franchise
- Subnautica
- Multiplayer
- Online cooperation
- Motor
- Unreal Engine 5
- Number of players
- 1-4
- Early access release
- 2025