I got to around 60 rocks broken, maybe 300 taps, bought the second most expensive item in shop, but could not go further.
It works from a technical level, click button, number go up. It has the right kind of sounds and basic feedback you might expect from an incremental game. But I have to be honest with my experience and say I don't think these kind's of games respect the player's time. It is not engaging to be reduced to a button clicking chimp over and over.
Like, i feel if you wanted to make it interesting, start introducing autoclicker stuff sooner (maybe you get there after 100 rocks, but I don't think i wanted to break my mouse to get there to find out), or some strategy, some rocks need a certain tool to chip away at them to not break them wrong., or hit them in particular weak spots Or many many things, other than the bare bones.
I am sorry if this comes off as harsh.