This was a really fun and beautiful game! The pixel art was awesome, and there is a whole lot of depth to the mining, processing, and purchasing gameplay loop that is really impressive for the short game jam time frame.
This may be an issue where something went over my head during the opening narration, but I was a bit confused on what all the different progress bars on screen indicated. Having a quick in-game tutorial or some label text that comes on screen to point out the meanings of the different UI elements could be useful for guiding the player. That's a really minor observation, though, and it didn't detract from the awesome project.
Great work!