KOEI has announced that Nobunaga's Ambition: Iron Triangle, a historical simulation game produced by Kou Shibusawa, has shipped to North American retailers, exclusively for PS2. In Nobunaga's Ambition: Iron Triangle, video gamers can step into the role of Feudal Japan's most powerful warlords and turn this magnificent vision of unification into a reality. Covering the entire country, with over 60 castles and 30 port towns, all of the game's planning, diplomacy, construction, and warfare take place on an expansive 3D map; a first for the series. Players can also maintain complete camera control to monitor the real-time development of each region or town, and to monitor the field and naval battles which they command in real-time.