if you want an idea of a game to make, look up "spider-man fucks the marvel universe", its an ok game, with bad(some even said stolen) art, but gonna be honest, it had very good scenes(again, not in the art but in the writting). it had grinding, but it never felt like it was overdoing it(unlike camp pinewood). the problem with that game is that, the guy behind it went with a very meh art(and possibly because he went with Miles Morales instead of Peter Parker, which, in hindsight, was something that might've worked much better if it was released a year or 2 later).
while i dont think you need to follow it to the letter, it should give you some ideas on story and how to setup events.
https://f95zone.to/threads/spider-man-fucks-the-marvel-universe-v0-2-weirdsea.8950/