Subnautica is an open world underwater exploration and construction game. We are Unknown Worlds, the developers of Natural Selection 2, and Subnautica is our new project. Subnautica will combine elements of role playing, sandbox, exploration and cinematic games to create a unique experience, the genre of which we do not believe has yet been invented.
Exterior Sketch was the first attempt to give form to an idea that is central to Subnautica: That players would interact with substantial underwater vehicles. These submarines would enable exploration and discovery by providing protection, mobility, and utility below the ocean surface.