Ratchet & Clank: All 4 One (previously known as Ratchet & Clank: 4-Play) is a platform video game for the PlayStation 3 developed by Insomniac Games and published by Sony Computer Entertainment in October 2011. It is the third spin-off from the Ratchet & Clank Future series.
Upon release, the game received positive reviews, with praise aimed at the soundtrack, story, graphics, humor, voice acting, combat and gameplay, though criticism was aimed at the frustrating partner AI and glitches. It was nevertheless a commercial success, selling 1.5 million copies worldwide; it currently remains the twenty-seventh best-selling PlayStation 3 video game of all time.
Unlike previous games in the series which were mostly single-player-only games, All 4 One focuses on a four-player cooperative multiplayer mode which allows for drop-in and drop-out online as well as offline multiplayer. Players can each take the role of one of the four main characters of the game, namely Ratchet, Clank, Qwark and Doctor Nefarious.
The game begins when Galactic President Captain Qwark goes to the city of Lumin...