very simple game, but I lost the fun after the first win, even with the upgrades and potential cascade fun.
Yeah, that tracks. The demo cuts off after stage 2, which is right before the modifiers start stacking into anything - so you basically got the tutorial and then the door closed. Infinite mode and the ascension levels are what's meant to carry it past the first clear, and neither is in the demo. Did you buy much in the shop, or skip through it? That's the part I'm least sure reads well.