Koei has announced that it has added a fourth world called Amagakeki to its PlayStation 2 MMORPG Nobunaga's Ambition Online, which was released in Japan on June 12th. Amagakeki will differ from the existing three worlds, as it is originally in a diplomatically neutral phase.As of June 15th, Nobunaga's Ambition Online, which went on sale in Japan alongside Sony Computer Entertainment's broadband unit (which so far has only been available via the internet), has sold 19,386 copies.
