Ah, a button that makes the numbers go up! Now just some sort of system that makes the numbers go down, and another one to make different kinds of numbers and you'll be edging up the dungeon portion of Cookie Clicker that was promised and never really implemented in any true capacity lol. I think my favorite idle game is Kittensgame, but I lost my progress when Firefox switched to Quantum and there was a bug with Dropbox import/export at the time.
I think having the systems gradually be revealed like in A Dark Room was novel for the time, but not really enticing anymore. I'd rather just have a selectable tutorial I can spam through and go back to, myself.
What do the impurities do?