This article is about the Foundation in Subnautica. To see this subject's article on the Below Zero Wiki, click here.

The Foundation is a Seabase component intended for other modules to be built on top of. The Foundation is constructed with the Habitat Builder, requiring two Titanium and two Lead.

Adding a Foundation to a Seabase raises the integrity value by two units. Foundations are the easiest way to add Hull Integrity, as they are relatively cheap and don't need to be installed in a specific compartment. Another way to increase hull integrity is to build Bulkheads.


TitaniumTitaniumLeadLeadArrow-right (1)Habitat BuilderArrow-right (1)Foundation



  • In older versions of the game, Foundations could be built into rock walls without causing a terrain change. This gave them the appearance of being built from out of the wall.