Final Fantasy XIII launched in Western territories as a multiplatform title, but in Japan the game remains PS3-only.

Now seven months after release, there are rumors going around that the game's domestic PS3-exclusive status may be changing. At the heart of these rumors is an Achievement list that appears at Xbox.com in Japanese. You can see the list here (Xbox Live login required).

XNEWS, which bills itself as Japan's largest Xbox and Xbox 360 information site, reported on this rumor today, stating that in the past, nearly all games that have had their Japanese language Achievements discovered in advance of official release announcement were later given a release. Will the same hold true for Square Enix's prized RPG franchise?

A snippet from the list at Xbox.com.