drag two of the same rocks/minerals together to create a new one. there are currently 15 different stones. you can't click the upgrades, you have to press the button [x] / [v] on your keyboard. so it doesn't work on mobile devices yet. hold [m] to show boring debugging stuff. the order of the stones isn't scientific, it's just one I liked. if you smash two coal pieces together IRL it doesn't create quartz.
the game isn't done yet, but when it is, I'll share it on my main acc: @Blaze_Razor126 I don't have a name for the game yet. the music is from the mobile game "Idle Miner Tycoon". all the art and code is made by me.