Subnautica Below Zero

The Expansion is a currently unnamed, upcoming game that acts as an expansion to the story of Subnautica. The full release date is currently planned for sometime in 2019, with early access coming sometime in late 2018. The Expansion will be purchased separately, and as such will not require the original game to play. The Arctic will be the setting of the story, which will feature a new protagonist rather than Ryley Robinson, and takes place in a different map in a time after Ryley Robinson has escaped Planet 4546B.

Confirmed Features
Features that have been confirmed through various means.
 * Arctic Kelp Forest
 * Creepvine Subspecies
 * Arctic Mega Biome
 * Arctic Spires
 * Penguin-like creature
 * Brute Shark
 * New protagonist
 * Glow Whale
 * Pinnicarid
 * The Vesper
 * Titan Holefish
 * Symbiote
 * Thermal Zone
 * Twisty Bridges
 * Spike Trap
 * Squidshark
 * Weather System
 * Unnamed Creature
 * New, not yet known land vehicle

Potential Features
Features that the developers are still experimenting with that may not end up in the expansion.
 * Rock Puncher
 * Large Bird
 * Jukebox

Gallery
Biomes=

Trivia

 * With the exception of the Prawn Suit, Subnautica's vehicles are unlikely to appear in this game.