Dive into a freezing underwater adventure on an alien planet. Below Zero is set two years after the original Subnautica. Return to Planet 4546B to uncover the truth behind a deadly cover-up. Survive by building habitats, crafting tools, & diving deeper into the world of Subnautica. Compare prices for Subnautica: Below Zero across multiple stores on GamerScout. Set up price alerts to get notified when it goes on sale!