Microsoft has announced that Ninety Nine Nights, developed by Tetsuya Mizuguchi (of Lumines fame) and SanYoun Lee ("Kingdom Under Fire"), will be released for Xbox 360 in the US in August.

"Ninety-Nine Nights" follows the journeys of seven warriors. In a struggle between light and dark, a new world order is established after the destruction of the "mysterious power stone." Warriors are destined to battle in a place far beyond their imagination, as a magnificent story spun of drama and emotion unfolds from multiple perspectives.

We haven't seen a US website yet, so if you can read Japanese, head over to the officia Japanese website for more information.