Return to the arctic region of Planet 4546B to unravel the dark mysteries that lurk in the murky depths of this alien ocean world! Unknown Worlds Entertainment studio presents the long-awaited sequel to their smash hit open-world survival game - Subnautica: Below Zero. Two years have passed since the events of the first Subnautica game and many questions are yet to be answered. This time you dive into the unknowns of Point Zero as a protagonist searching for their missing sister.