The One Piece franchise has been adapted into multiple video games published by subsidiaries of Namco Bandai Holdings. 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.
The series debuted in Japan on July 19, 2000 with One Piece: Mezase Kaizoku Ou!. At the moment, the series contains 27 games, not counting Battle Stadium D.O.N, the title One Piece shares with its related anime series Dragon Ball Z and Naruto. Furthermore, two unnamed titles have been announced for the Nintendo DS and PlayStation Portable handheld consoles.
