One Piece: Pirate Warriors 4 is an action game based on the One Piece manga and anime series. It features fast-paced musou-style combat, letting players battle huge groups of enemies while reliving major story arcs and exploring new scenarios. The game includes a large roster of playable characters from the franchise and emphasizes flashy special attacks, team combinations, and large-scale battlefield action. It is the fourth main entry in the Pirate Warriors series.