This is 7th game of the "Sengoku Gunyuden" series.
"Kyushu sangokushi" is covering battle of three major clans in Kyushu region.
Three scenarios are included in this game. "Battle of Mimigawa" and "Battle of Okitanawate" are short games for two players. "Kyushu Sangokushi (Battle of three clans in Kyushu)" is campaign games for three players.

Each players control one or more clans. The clan's combat units is organized to some troops.
The game repeats the game turn decided by the scenario. There are four action stages in each game turn. The number of stages where each troop can act is decided by commander's activation ability. In the action stage, each troop selects one action. The action that can be selected is a movement, field combat, siege, moral recovery, reorganization and replacement.

Victor of the games is the player who got more victory points. The victory point is provided by the holding of the castle and the removal of the enemy units.

SCALE: Each hex of map is roughly 6000 meters. Each game turn represents one week of real time. Each combat units represents about 1000 soldiers.