Really nice game. I especially like the aesthetic of the icons. Looking forward to updates :)
One thing though that bugs me a bit (i'm only at Amethyst mine) are that affinities at one point stop working because you need the place in the hopper for higher coins. Is this intended? Because at this point i see no point in buying more bronze affinities for example.
No offense btw, i know it's still in development ;)