ok, so you could get in trouble with bethesda, for posting a series of comic strips using pictures from their game, on THEIR site?
I didn't mean to imply that you would get into trouble, merely that the amount of work may not be worth it - especially if you expected some sort of recognition by more than the viewers of this board.
Also to clear up a point of copyright law:
The myth or belief that if you don't profit from another's IP it is not copyright infringment is exactly that - a myth. Fan fiction, which I myself have engaged in on these forums is technically a copyright violation. Now in my case I would claim that I did not infringe as I did not mention anything specific to the game or storyline such as a fictional item used ONLY in this game or a name of a character or town specific to it. If you do it is technically copyright infringment and Bethesda automatically by copyright law changes per 1989 copyright law, owns the material you worked on, no matter how much time you put into it or how good it is.
Most IP owners overlook fan fiction as it aids the marketing of their product and is, in general, a good thing. I know there are two authors currently that expressly forbid fan fiction. One is Ann Rice. I cannot recall the other at the moment.
However, all of this being said, an idea cannot be copyrighted. Therefore, anyone could write a story of a wasteland or holocaust aftermath and as long as they did not use any name specific towns, items, characters or any specific dialogue (line complete), there would be no copywrite infringment.
The sole sticky point being that Zenimax media has claimed that they own everything that appears in these forums by copyright. Personally, I think a court of law would see things differently but that is what Zenimax claims.
I hope this clears up in some small degree, copyright law.
If not, here are some links that may provide additional clarification:
http://www.freesticky.com/stickyweb/articles/copyrightcontent.asp
http://www.templetons.com/brad/copymyths.html