Nice work! I'm not very good at these types of grindy games, so maybe there's some tricks or intuitive things I was missing. Looked and sounded good, controls were smooth. Being honest though it took me a while to get anywhere and eventually became too expensive to mine so a lot of time was spent waiting on the cash ticking up. I had 30 extractor/conveyor/converters at one point but still felt hard to do more. Would love to see better balancing on the cost to mine. Nicely done :)