The alien observatory door in Subnautica 2 is fairly close to the Alien Ruins biome/marker, which is a key objective once you ...
Opening the Observatory near Subnautica 2's Alien Ruins requires you to activate the generator in the area first.
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How to start the Axum Power Plant Observatory in Subnautica 2
This Subnautica 2 guide explains how to repair the Axum Power Plant, activate the Alien Turbine, and unlock the Observatory ...
Conduit Crystals are a late-game Subnautica 2 upgrade material that are necessary if you want to unlock the secrets of the alien plant.
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