Dive into a freezing underwater adventure on an alien plan. Subnautica: Below Zero is a stand-alone expansion, so it does not require the basic version of the game to work. Unknown Worlds Entertainment presents the return to the world of 4546B with Subnautica Below Zero. Join us as we unveil the Below Zero launch gameplay trailer and celebrate the release o. The expansion introduces the need to take care of the protagonist's body temperature and the possibility of constructing a hovercraft or a small mech, allowing for the exploration of frozen surfaces. You are invited to a special Subnautica: Below Zero livestream event. During the game, we have to take care of the basic needs of our hero, but we also have to search for raw materials which would allow us to build useful tools, vehicles, and bases. Subnautica: Below Zero takes us to frozen territories, where we can loot both underwater and surface locations. It is a new chapter in the Subnautica universe, and is developed by Unknown Worlds. Players return to the almost entirely ocean-covered planet 4546B, discovering the secrets of the globe and at the same time fighting for survival. Below Zero is an underwater adventure game set on an alien ocean world. The action of Subnautica: Below Zero takes place after the events presented in the original. The action of Subnautica: Below Zero takes place after the events presented in the original.Players return to the almost entirely ocean-covered planet 4546B, discovering the secrets of the globe and at the. The add-on was developed by the authors of the original, Unknown Worlds Entertainment studio. Below Zero is an expansion to Subnautica, an adventure action game with survival elements.The add-on was developed by the authors of the original, Unknown Worlds Entertainment studio. Below Zero is an expansion to Subnautica, an adventure action game with survival elements. Introduced in early access via Steam and the Epic Games Store in January 2019, Subnautica: Below Zero was released for the Microsoft Windows, macOS.