I like the idea, but the execution is a bit clunky. It has a few game-breaking bugs, I had to restart it several times because all grains would go through but it woldn't enable the "turn" button. Progress is a bit slow and too manual with the manual turns of the clock and you have to wait for the animation to finish, it breaks the pace and flow of the game. As I said, the idea is good but it needs a bit of polish.