Possible Duplicate:
Legal issues for a “fangame” of a commercial franchise?
Is it possible to create my own commercial game based on the Star Wars Universe, without any copyright infringement?
Possible Duplicate:
Legal issues for a “fangame” of a commercial franchise?
Is it possible to create my own commercial game based on the Star Wars Universe, without any copyright infringement?
It is possible, but you can't use Star Wars or any other trademarked names, nor any content from existing games (graphics, sound, etc.) in your game. So, essentially, while possible, it will be a challenge to save the Universe spirit. And anyway, for any such serious attempts (like if your money is involved) you should consult a lawyer.
It's primarily a trademark issue. You wouldn't be able to do this without trademark infringement (and also, probably copyright infringement).