《海贼无双4》是由万代南梦宫与光荣联合打造的动作冒险游戏。本作为《海贼无双》系列游戏的第四部作品。游戏新增了更多的玩法和新角色新技能，让玩家体验更自由的战斗流程与爽快的割草感觉。而作为次世代游戏许多动漫场景将得到华丽“重生”，大家所熟悉的动漫角色也会一一展现在玩家面前。
包含DLC：
- ONE PIECE: PIRATE WARRIORS 4 Whole Cake Island Pack
- ONE PIECE: PIRATE WARRIORS 4 The Worst Generation Pack
- ONE PIECE: PIRATE WARRIORS 4 Land of Wano Pack
- ONE PIECE: PIRATE WARRIORS 4 Anime Song Pack
- ONE PIECE: PIRATE WARRIORS 4 Month 1 Bundle
- ONE PIECE: PIRATE WARRIORS 4 Charlotte Katakuri Early Unlock
- ONE PIECE: PIRATE WARRIORS 4 Character Pass
- ONE PIECE: PIRATE WARRIORS 4 The Battle of Onigashima Pack
- ONE PIECE: PIRATE WARRIORS 4 One Piece Film: Red Pack
- ONE PIECE: PIRATE WARRIORS 4 Legend Dawn Pack
- ONE PIECE: PIRATE WARRIORS 4 Yamato's Grand Tour Logbook & Soul Map 1
- ONE PIECE: PIRATE WARRIORS 4 Onigashima Battle Law Costume
- ONE PIECE: PIRATE WARRIORS 4 Character Pass 2
- ONE PIECE: PIRATE WARRIORS 4 Additional Episodes Pack
- ONE PIECE: PIRATE WARRIORS 4 One Piece Film: Red Anime Song Pack
- ONE PIECE: PIRATE WARRIORS 4 Koby's Combat Chronicle & Soul Map 2
- ONE PIECE: PIRATE WARRIORS 4 Path to the King of the Pirates & Soul Map 3
- ONE PIECE: PIRATE WARRIORS 4 Shanks Additional Special Move "Divine Departure"
- ONE PIECE: PIRATE WARRIORS 4 Character Pass 3
- ONE PIECE: PIRATE WARRIORS 4 Character Pack 7 Future Island Egghead Pack
- ONE PIECE: PIRATE WARRIORS 4 Character Pack 8 Special Selection（新增）