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