Onimusha: Warlors, released in Japan as Onimusha (鬼武者, Onimusha?), is the first game of the Onimusha series, released for the PlayStation 2 at first. It went through many changes and was released as Genma Onimusha for the Xbox. The game was also ported to PC Windows as Onimusha: Warlords, although this version was only released in Asia. Also Onimusha: Warlords was originally going to be for the PlayStation, but since the release of the PlayStation 2 (Onimusha: Warlords was about 50% done at that time) it was moved to the PlayStation 2.