IC: Free-Form Cross-Genre RP
I don't have an abundance of time at present, so not an expression of interest as such, but I thought it unfortunate that this had no replies, as I think this idea could potentially work if it was actual genre-crossing rather than fanfic crossing.
See, most times if people want to do a [media] fan game, they want it to be all about that specific piece of media, because it's their favourite. If they want a crossover, they usually want it with one specific thing, and it's long odds that a stranger is going to come up with that.
However, if you come up with a rough overarching plot like "a Generic High Fantasy wizard accidentally summons randoms from a bunch of different realms [genres], and they have to quest about the Hall o' Doors dropping everyone off" then you're giving players the option to play a character that embodies the aspects of a genre they love without tying them to being Snoopy, or Superman, or a Sindy doll. Basing the realms visited off the characters that come from them - e.g. Generic Action Hero Bombo's world might be gritty, campy, obliviously dystopian or cartoonish depending on how Bombo was portrayed - would create investment and engagement, too.