I love this one. It would probably be the most difficult to execute out of all those in my opinion, and it would be a very, very unique concept.
9th Story idea
This story takes place in like any world in which any superhero would live, except it is without a hero, cops against either powerful underworld leaders or powered supervillains and you are on the losing side.
This one, as well, is very interesting. I’m a sucker for these types of games and would love a good underdog story.
Good luck with whichever you choose to go with!