I might be missing something, but the difficulty / progression speed is *INSANELY* slow. Have to do like 8 mining trips just to afford a license to a place past the starter one, and then even with the drill and worm I lost money twice on a new plot, never made enough to cover the license fee.
I'd love to enjoy this game, and get further to see what the end / mid game are like, but I'm just not that masochistic. I'll try it out again if its balanced to be less brutal in an update.
I find the whole forcing you to click ores super fast or they lose value is really annoying because it kills the game's strong suit of being a relaxing experience.
It could be a really fun game, keep at it!