This game is quite a surprise to me. Yes, it doesn’t have well matched graphics (although the hand drawn story screens are good). Yes, the controls are extremely quirky. Yes, the game mechanics of prophecies, money and profits is odd. But. There are the puzzles. This game has awesome idea of having player write their own procedural terrain/rock generator to satisfy needs of the miner driven by computer. This is the “inside out” ingredient used to its fullest. To me it was fun to come up with various math expressions and functions to cover required terrain types and allow for gold mining. The idea’s execution has some rough edges that should be polished.
First, I would consider changing the Structured Quarry Language (I love this name btw) to be as simple as possible to type; JSON has many quirks and unnecessary characters for this role. Also, I had no overview of available math functions (I only found out a few by trial and that logic operators are not supported). Neither there was any parentheses matching helper.
Second, I would consider completely changing the way the feedback looks - there are error messages shown, but not nicely; there are colored squares, but no hover tips on them.
And last thing, the tutorial could be interactive.
The other ideas of the game… I would consider throwing them out and rethinking them. I have played it as a puzzle, always hard difficulty, didn’t get to point of thinking about game economy etc. It seemed to be forcefully tacked on. I see the game as a very prototype of very interesting idea that should definitely be developed into some puzzle game / math education tool.