Hi! Sorry you’re having trouble. The truth is that Lily Lander was our first ever C64 game and made on a short deadline for a gamejam, so it’s missing a “fast-loader”, something to load the software quickly with a launch screen.
As such, the game takes several minutes to load, and without a real disk drive chuttering away at you there might be no evidence the game is loading until it finally does. If you try loading it and it takes more than 5 minutes, something else must be wrong.
I have looked around to see if I could issue a refund, but I don’t see the option at first glance. If the software still will not work on TheC64 mini, I will do my best to find a way to refund your purchase.