Wow, thanks for playing and the huge feedback. I had an idea about a evolution tree but I really like the idea of giving player feedback in the upgrade window, showing possible paths. I kinda want to keep some of the mystery of the evolutions, so maybe only after you have evolved to that monster at least once.
I'm glad you liked the game and I agree that the resolution get kinda annoying in the long run, I want to keep working on the game because I liked the core mechanics, I will definitively remove the resolution restriction. I laugh a lot with your story about trying to hack the game, the heroes have a soul and time requirement for balancing purpose but I never though about somebody editing the souls.