NOTE: While I don't go into detail about solutions, you might not want to read this comment before playing since it could spoil the puzzles somewhat.
Played with a friend for about an hour and a half. We couldn't figure out the thing with the planets, think we got everything else though.
I like the aesthetic. The music is nice and the environment is fairly interesting. I do wish the lighting was a little better in places though, sometimes the light sources are just invisible spots in the middle of the room, even though there are candles and such all over the place.
It would be nice to explain the controls better. There's a more detailed list here on the Itch page but in-game it doesn't mention that there's a run button, or that WASD works, or that the middle mouse button moves backwards. The walking speed is really slow so knowing about the run button seems pretty essential. I actually think the running speed should be faster than it is. We spent a lot of time wandering around and the slow pace becomes annoying, especially for the long catwalks.
It's a little hard to tell which dots are which if you get what I mean. At first I thought I was wrong about the whole thing when actually I just clicked the wrong dot.
The narration is well voiced, but it's a little hard to hear because they're so quiet. Would be nice to either have separate volume sliders or the option to turn on captions.
The animation when you pick up a piece was cool the first time but it starts to feel drawn out after a while. I guess you don't have to wait around for it but it sorta feels like the game wants me to.
Generally I'd say I liked the aesthetic and the puzzles but the controls were somewhat frustrating and the whole thing was paced very slowly. If I could move a little faster, hit switches that are a little farther away, etc. it would go a long way to improving the overall experience. Definitely some cool stuff in here though.