sc94597 on 18 November 2008
They are two different games. They both take place in the same universe, but aren't related other than that. You could think of Versus as a spinoff, but I wouldn't. Versus will be using a real time battle system similar to Kingdom Hearts, while FFXIII will be using the ATB battle system. They have two different stories. So yeah basically they are two different games. Not two versions of one game.
