フロム・ソフトウェア
Although the game was intended to be an Xbox 360 launch title for the Japanese market, its release date was pushed back to , by the developer, From Software. Ubisoft published the game in August 2006 in North America, and in September 2006 in the PAL region. At the time of its PS3 release, it was a launch title for the PAL market. Since its release, it has been confirmed that the game uses only a single DVD, in contrast to earlier multi-disc reports. It also comes with an art book and mini-calendar in Japan. The supplementary content included with the initial American product shipment was a 48-page prequel manga.