Cool game.
First, a couple of things I noticed. The score keeps going up in the start menu after you lose. Movement sometimes results in (slight) camera jittering. Viewport does not scale on window resize. Aside from these minor problems, I liked the game.
The space setting was interesting. In particular, I think that the rocks were really cool. Are they procedurally generated with a compute shader or are they grouped into "modules" and you permutate the modules?
The 3d assets were well done. I also liked the start menu. The achievements were a nice touch.
Thank you for sharing this game. I had fun. (^=◕ᴥ◕=^)