this some really valuable feedback, thank you so much, all what you said makes sense, I got the same feedback about the earning gold from other players, totally understand that and will fix it!
I struggled with balancing difficulty, it was really hard in the beginning but I made easier, I was afraid players would find it super difficult, I have an idea for a hard mode that I think you'll like but I'm still trying to get it work
There is an end depending on how you play and the upgrades you unlock...etc but maybe there is a bug, I'll check
I am also updating the art style and visuals