Subnautica: Below Zero

Subnautica: Below Zero is a game in development by Unknown Worlds Entertainment that acts as a stand-alone expansion to the story of Subnautica. Early access was released on January 30th, 2019. Below Zero is purchased separately, and as such does not require the original game to play. The game is available on Steam, Epic Games, and the Discord Store.

The story takes place within Sector Zero, an arctic zone set at the equator of Planet 4546B. It features a new protagonist, Robin Goodall, rather than Ryley Robinson. It takes place in a different location, two years following Ryley Robinson escaping the planet.

Subnautica: Below Zero Wiki
A separate wikia exists for Subnautica: Below Zero. A link can be found below.
 * Subnautica: Below Zero Wiki