The greatest works of past times are "shitty fan works". In the eras before copyright, people were taking each other's works all the time, and improving upon it.
LoL came from DOTA, which came from Warcraft (which also deviated into MMOs, a copy of Everquest), which came from them making a warhammer game and reusing assets. It never stopped.
Reminder that Dante's Inferno was shitty fan fiction.
Is there some story about it?
Yeah, copyright pirates are all sent to the 10th circle of Hell, where they are forced to write CC licensed fanfic stories on GPL software like GNU/Linux for eternity.
Hail Stalman!
Shitty in that there was literal shit, but I get your point.