Subject: Absolutely.
Author:
Posted on: 2017-11-21 14:36:00 UTC
(I've now read the sword one too; my poor heart, it did break.)
Let's take as a hypothetical example the Marvel Cinematic Universe (movies only). It's a great canon, very fleshed out and mostly consistent - but is there space for an OC not connected in some way to the main characters? I think it would be hard to find somewhere for them to go, because most of what makes things interesting is the characters.
To show what I mean, here's a few hypothetical stories you could tell... and why you probably shouldn't:
-Your hero lives in a city on the US West Coast, and fights supercriminals. Great - but why is it fanfic? Superpowers are so generic that you may as well make it original fiction. (Exception: if they're using something connected to one of the main characters - salvaged Iron Man tech, say - then they become an exploration of that connection, and not independent at all.)
-Your OC lives in Vanaheim, and you write a lovely story about her life there. Um... see previous point! 'Idyllic world being attacked' isn't specific enough that you need to make a fanfic, unless you have characters you want to draw in.
-Your OC is a previous Sorcerer Supreme. Yeah, you could write that. But then you're defining them as 'predecessor to Strange and the Ancient One', which is a very firm connection.
And so on. The thing that makes the MCU interesting is the existence of the Avengers and their ilk, not the wider setting. The planets and politics only exist to be a backdrop to their adventures, so writing without tethering the narrative to them isn't usually worthwhile. Contrast Middle-earth or Warhammer 40K, where the setting came first, and was used to build the narrative - Lord of the Rings was literally Tolkien coming up with a story to set in his previous world!
hS