Hiromichi Tanaka, Final Fantasy XIV's creator and director has told Eurogamer that Microsoft's "closed" Xbox Live system is the reason the game isn't appearing on the console.
"The main reason why we couldn't go with Xbox 360 was the Xbox Live system," he told the site at E3. "[Live is] different to the normal internet environment, so when we wanted to introduce this game in the same environment as Windows PC it had to be PS3, so that was our choice.
"Microsoft has a different point of view: they want to have a closed environment for Xbox Live. We're still talking to... We couldn't come to an agreement on Xbox Live."
Final Fantasy XIV is currently in development for PC and PS3