[@Ellri] That is a tricky question, but I guess to put in a TLDR kind of answer. I would say that I wouldn't have a problem if the base of a world was used (I've done something like this with some buds where we used Skyrim as a base for a world after creating our own characters, and was really fun), so I guess I would say that it would be fine if it was based off of a world. Also using something as a base is also okay, inspiration is fine in my book. But, the second someone takes a character straight from the source, then it's not okay with me. I guess to some it up would be to say that, basing an RP off of something is fine, but using characters, stories, and other things in that nature, I wouldn't like to do. (This wasn't really TLDR..)