I managed 895 on my best loop by getting rich af and using the runes that gives score based on your gold + the runes that double tempers. Very impressive game with highly intricate mechanics, even outside a game jam tbh. This is one of my favorites so far out of all the games I've tested. I have little to criticize except minor things: the buttons could have hover feed and be pressable everywhere, not just the small circle. I am also not quite sure what exactly crumbling is, my crumbled runes seem to have worked just fine?
Anyways, there's big potential here with all kinds of insane synergies between runes.