An incredible game on the whole. The premise is simple, and yet it works beautifully with what it has. The gameplay loop challenges one's ability to do math mentally, and requires them to be able to process how the machines work as though they themself were a machine. The numerological puzzles with being able to combine the limited sets of numbers also forces players to think carefully and plan ahead with the numbers given to make the machines all work eloquently with one another. Were this somehow expanded into some kind of longer experience (or maybe even something endless), I would genuinely pay money for a game like this.