Samurai Warriors: State of War is a PSP port of Samurai Warriors. It is not a straight conversion, however, and involves more strategy that the original. Gameplay is separated into two parts: a Strategy phase and an Action phase. The strategy phase has the player move characters in a turn-based fashion, and in the action phase the player needs to defeat as many enemies as possible in 60 seconds. The action phase affects how battles play out in the strategy phase. In addition to the characters from Samurai Warriors, the game features several primary characters from Dynasty Warriors 4 in a stage.