It was a nice game, with a good amount of polish as well. I would have liked to see more freedom in movement, like more camera freedom, and the ability to move in all directions but thats a personal preference more than a gameplay issue.
Maybe a short blurb at the beginning of the game on what to do? (Go mine as many resources as you can to amass a profit!)
The visuals were nice, although I thought it was a little too saturated.
Some more animations could have been nice, and the I feel like the minimap should always show where the hubs are regardless of distance, but other than that the functionality was perfect.
Overall great job!