Hey, just wanted to add to my previous comment. After thinking about it, your ideas for adding story and leveling are actually fantastic. I'll definitely keep them in mind for the game's future development. Thanks again for the detailed feedback!
Wish you good luck bro! It's hard, but if you want to create something interesting and nice you need to create it and think how you can do it better and better. Hope you'll do it and be rewarded for it.