Kessen is a computer war game formatted for PlayStation 2 and was one of
the first software games to be played on real time. It is set in Japan
during the Feudal period that was characterized by clan clashes.
Shogunate of the Tokugawa clan in the East and Toyotomi clan in the West
are at war. Tokugawa Ieyasu leads the Eastern armies against the
Western Forces. Created by Koei and Electronic Arts, this well-received
game series is said to be historically accurate. Later versions,
however, have fantasy elements.