Thanks so much for playtesting and your awesome message! I'm really keen to start adding gems, more missions and better passive skill tree customization. Not to mention unique items!
That's good to hear about the fun being there and the rare missions, I think I want to add a lot more of those to give you more decisions and opportunities as you progress. There feels like infinite design space with things like league mechanics. So much fun stuff I can do I can't wait!