Seabases (Subnautica)

Seabases are player homes created by the player.

They are created through the use of the builder tool.

"Seabases are available now, and allow the construction of habitats on the sea floor. Bases are composed of modular units such as compartments, windows, and hatches, bases allow you to create an outpost from which you can go forth and explore Subnautica’s vast ocean."

Seabases can be customized in the same way as the Cyclops through the installation of lockers; fabricators; and fragment analyzers.

Seabases can be built on a Island Biome.

BUG: When on land, if hull integrity reaches below 0, the base will still flood above water.

Special Properties: Hull Integrity


Hull integrity refers the ability of your Seabase to withstand the pressure of the surrounding water.

Hull integrity can be increased by crafting special parts called reinforced hull using the builder tool.

Factors that affect hull integrity
 * Number of interconnected modules
 * Windows
 * Depth at which the seabase is built

Requirements for All Seabases

 * Flat terrain
 * Builder
 * Foundation (crafted through builder)
 * Power Generator (crafted through builder)
 * Hatch to allow entrance to seabase (crafted through builder)

How to Build a Seabase

 * 1) Find a suitable flat piece of land, or terraform the environment with the Terraformer.
 * 2) Equip the Builder, click the RMB to bring up a crafting menu.
 * 3) Select desired module (first lay a foundation)
 * 4) Look at the desired building place (the outline of the module will become green if the location is valid).
 * 5) Adjust the rotation by pressing Q or E
 * 6) Place the module by clicking the LMB
 * 7) Once placed, use the LMB to finish the building process.
 * 8) Go to Step 2 and repeat.