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.
- 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.