The was a major milestone that brought the game to version 2.0. This update focused on parity with the original game and added several highly requested features:

: Unlike the first game, you must also manage your body temperature while above the surface to avoid hypothermia.

: Manage oxygen levels while exploring freezing underwater biomes and treacherous icy terrain.

: Over 800 bugs were addressed, along with significant optimizations for better frame rates and stability.

: Construct elaborate underwater bases to store resources, craft equipment, and survive the harsh environment.

: Players can now build the massive "Large Room" and the aesthetic "Glass Dome" from the original Subnautica , allowing for much more ambitious base designs.