Definitely took me a long while to get the hang of it, but when I got the purpose it was really fun!
I really loved the pixel arts and the polishing. The camera shakes added a nice detail to the game. The purpose of the game is really interesting as well---It took me a while to realize I have to build up haha. Ended up reaching the time machine but missed out on some gems...
One small suggestion is to probably change the pace at the start game a little bit---for the first few loops, I started off with a slow start between reading the tutorial beacons and digging around. However, this is not an issue at all but rather just my personal preference for the pace.
Great job!