The alien observatory door in Subnautica 2 is fairly close to the Alien Ruins biome/marker, which is a key objective once you’re done with the Tadpole Pens. If you’re just free-roaming, then the ...

Opening the Observatory near Subnautica 2's Alien Ruins requires you to activate the generator in the area first.

This Subnautica 2 guide explains how to repair the Axum Power Plant, activate the Alien Turbine, and unlock the Observatory ...

The best base locations in Subnautica 2 feature plenty of open space for building in, have some sort of power source within ...