Subnautica is a visually beautiful undersea survival and exploration game set in an alien world and created by the aptly named Unknown Worlds, the developers behind the excellent Natural Selection 2. Please note that the links will be available shortly after the game’s release. If you like this genre, we recommend you to try this project. This is a very interesting game created in the genre of Adventure. Full version of this game available to download for free and without registration. Welcome to our gaming portal! On this page you can download Subnautica on PC and Mac.