Explore a beautiful but treacherous submerged alien ocean planet in this acclaimed open-world survival action adventure from developer Unknown Worlds Entertainment.
After crash landing on this underwater world, the only way to go is down. Subnautica's oceans range from sun-drenched shallow coral reefs to perilous deep-sea trenches, lava fields and bio-luminescent underwater rivers.
Manage your oxygen supply as you explore kelp forests, plateaus, reefs and winding cave systems. The clock is ticking to find water, food and to develop the equipment you need to explore.
Collect resources from the ocean around you. Craft knives, lights, diving gear and personal water craft. Venture deeper and further to find rarer resources, allowing you to craft more advanced items.
Choose layouts and components for underwater structures. Manage hull-integrity as depth and pressure increase and use your base to store resources, park vehicles and replenish oxygen supplies as you explore the vast ocean.
Subnautica has four game modes — Survival Mode, Freedom Mode, Hardcore Mode, Creative Mode — that provide different levels of difficulty. Hardcore Mode is the most difficult, while Creative Mode allows players to explore freely in the easiest difficulty setting.