Crimson Sea (紅の海, Kurenai no Umi) is a sci-fi action adventure game developed and released by Koei. It is one of their original flagship titles for the Xbox and it currently remains a console exclusive. The game combines elements from the Warriors titles and is, in some ways, the spiritual predecessor for the Dynasty Warriors: Gundam games. It was given a PlayStation 2 sequel. Yoshiki Sugiyama is producer and Yoshihiro Kishimoto is the producer of the North American port. The composer is Yoshihiro Ike.