The concept is really clever. I haven't seen anything like it yet. It fits the theme perfectly, and the animations between the night and the day are smooth and satisfying. I suggest that in the tutorial, it can be a little bit clearer what you are searching for but even without i got the point after the first question.
great job!
If you would like to try out my friend's game its here! - https://aviv-youker-harel.itch.io/orbit-express