One Piece Kaizoku Musou

One Piece Kaizoku Musou (ワンピース海賊無双; Literally "One Piece Unparalleled Pirates") is the third Warriors collaboration project, following in the footsteps of Dynasty Warriors: Gundam andFist of the North Star: Ken's Rage. The game's story and characters are based on the famous Japanese manga and anime, One Piece. This game is the first One Piece title to ever be made available on the Playstation 3.

The title is being made with the hopes of creating the "ultimate game", as developers claim that it personifies the "comrades" (仲間,nakama) and Warriors themes in a grand adventure. Hisashi Koinuma stated that the collaboration began when he was specifically approached by Shin Unozawa (Vice President of D3 Publisher) for a One Piece title.