Below Zero is the development of the Subnautica story, but this time, the developers created real mystery. All actions take place in the uncharted Antarctic zone. The main character has to find a clue to her sister’s disappearance. You will have to explore a completely new world full of unbelievable adventures and challenges – you will meet unknown things everywhere. There are several plot lines in the game but you primarily need to find out what happened a year ago to all scientists of the station.