to go backwards it wants you to, using math operations go from a number X to X - 1, and the result can't be zero I think. I figured out how to do it with 2 operations, but that required being able to enter 2 operations at once. So it shows what's possible with the current buttons, but not whether the calculator can accept it I think.
I'm stuck on figuring out M-, as i have no idea what I did for M+ even after resetting the game to try and pay attention.
Nice game, but the balance changes slow things down almost too much. Prestige only scales ore amounts, not smelting, meaning that it only mainly helps with the initial rush, it doesn't speed up a deep dive too much. Smelting scaling is now very non linear, with 90% of the gain happening in the last 10 upgrades (1/s to 10/s to 100/s), and the initial upgrades do very little.The ore regen is very slow (about 90 ore with around a minute regen each is around 1-2 ore per second) compared to the amounts to unlock the next tier of mine. Also, I'm not sure the idle part is working for me (Firefox).
To be clear, I like the game, just feels a bit like hitting a wall at the moment :P
