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 ...

The Observatory is one of the most important alien structures currently available in Subnautica 2 Early Access. Located deep within the Alien Ruins biome, this massive tower-like structure remains ...