Dive into a freezing underwater adventure on an alien planet. Subnautica: Below Zero is set two years after the original game. Return to Planet 4546B to uncover the truth behind a deadly cover-up. Survive by building habitats, crafting tools, and diving deeper into the Sector Zero world. Extract the release. Mount or burn the .iso image. Install the game.

When creating text for a release like , the goal is usually to emulate the classic style of a "NFO" file—the digital signature used by scene groups to provide installation instructions and technical details.

The game is a standalone expansion to the original 2018 Subnautica .

If you want to bypass survival mechanics, you can use the in-game console to enter codes like nocost for free crafting or oxygen for unlimited air.