A first-person survival adventure set on an alien ocean planet, emphasizing exploration, crafting, and discovery across vibrant reefs, deep trenches, and bioluminescent depths.
- Developer: Unknown Worlds Entertainment
- Year/Platforms: 2018; PC, Xbox One, PS4 (later Switch, PS5, Xbox Series)
- Genre: Survival, exploration
- Core mechanics: Oxygen-limited diving, resource gathering and crafting, base building and seafaring vehicles (Seamoth, Cyclops, Prawn Suit), scanner and blueprint progression
- Reception: Critically acclaimed for atmosphere, sound design, and emergent storytelling; a landmark in survival exploration design