What exactly is the legality of a free software video game with copyrighted, proprietary characters? I am a brony, an adult fan of My Little Pony: Friendship is Magic[1], so I would like to play games featuring the characters of the series. Unfortunately, the characters and universe are all proprietary, the copyrights held by Hasbro.
I am thinking of a free software game engine with all the character/universe data that could be copyrighted by Hasbro released under a noncommercial license, because they are pretty tolerant of noncommercial fanart. This idea could also be appropriate for fans of other proprietary series, such as Star Wars, Star Trek, Doctor Who, etc. Is there some "skinnable" free software game where you can add characters and storylines of the proprietary universe you happen to be a fan of? In my experience. most of the free culture/free software games with a storyline just aren't very well written. :-( Also, would you still consider such a game free software? [1] http://whatisabrony.com/