also if you dont want to then heres a new game idea: try making puzzle game since cant think other games you can make and cant think of any type of puzzle so i think its your choice
Try making "stop it" game. You go to different levels and you have 2 ways, correctly, which earning you a shiny trophy only if you go through all 7 levels correctly, and badly, which earning you a dirty trophy if you go through all 7 levels BADLY. (based from the gaem called STOP IT if you dont know, search it anyways or whatever)