信長の野望 Nobunaga's_ambition
A long-running series of historical strategy games by Koei about the Sengoku period of Japan. Known in the west as [b]Nobunaga's Ambition[/b].

This series (of all things) was made into a crossover with [[Pokemon]] as [[Pokemon Conquest]], known in Japan as [b]Pokémon + Nobunaga no Yabou[/b].
nobunaga no yabou