The One Piece video games series was published by Bandai and Banpresto, later as part of Namco Bandai Games, and is based on Eiichiro Oda's shonen manga and anime series of the same name. The games take place in the fictional world of One Piece, and the stories revolve around the adventures of Monkey D. Luffy and his Straw Hat Pirates, the franchise's protagonists. The games have been released on a variety of video game and handheld consoles. The series features various genres, mostly role-playing games—the predominant type in the series' early years—and fighting games, such as the titles of the Grand Battle! sub-series.
Source: Wikipedia, "List of One Piece video games", available under the CC-BY-SA License.