Tenka Fubu (War under the sky) is a multi-player game in which players take on the roles of the major samurai clans. The Takeda, Oda and Asai clans are battling for power from the 1560s to the 1570s. There's a political element, as alliances shift back-and-forth, as well as military action, as players' armies contest each other across the board. Note: 天下布武 (Tenka Fubu) (under the sky - spread war) refers to the characters on Oda Nobunaga's personal seal that he inaugurated during this period.