Subnautica

Subnautica is an underwater adventure game set on an alien ocean planet, where you explore, gather resources, craft equipment and try to survive after crash-landing in a Life Pod. Its open ocean ranges from sunlit coral reefs to deep-sea trenches, lava fields and bioluminescent underwater rivers.

Explore the ocean

You explore kelp forests, plateaus, reefs and winding cave systems while managing your oxygen supply. The ocean is full of life, some helpful and much of it harmful. Conditions change after dark: predators emerge, and places that are safe to visit by day become dangerous at night, though the darkness also reveals sights hidden during the day.

Caves extend below the seabed, from dark, narrow passages to caverns lit by bioluminescent life and hot lava flows. You can explore these depths for resources, but need to watch your oxygen and avoid threats in the dark.

Gather and craft

After the crash, you need to find water and food and develop the equipment required to explore. You collect resources from the ocean to craft diving gear, lights, habitat modules and submersibles. Going deeper and farther can lead to rarer resources for making more advanced items.

Build underwater bases

You construct habitats on the seafloor, choosing their layouts and components while managing hull integrity as depth and pressure increase. Bases provide places to store resources, park vehicles and replenish oxygen during your explorations.

Face the dangers

You can use the ecosystem to distract or evade predators, such as luring a threatening creature with a fresh fish or swimming away from roaming hunters. To explore extreme depths and heat, you can build a Pressure Re-Active Waterproof Nanosuit, or PRAWN Suit, and modify it with equipment such as mining drills, torpedo launchers, propulsion cannons and grappling hooks.

Uncover the mystery

As you investigate the planet, you look for answers about what caused the crash, what is infecting the sea life and who built the mysterious structures scattered across the ocean. Your goal is to find a way to leave the planet alive.