Ratchet & Clank: Reaper is a game created by Insomniac Games and published by Sony. It takes place after the events of Ratchet & Clank Future: A Crack in Time. The game doesn't include multiplayer.
Ratchet & Clank return to the Solana Galaxy after the death of Alister Azimuth. They receive a request for help from Sasha, the former mayor of Metropolis and commander of the starship Phoenix. Sasha is now the president of the Solana Galaxy: her dad had quit his job. Sasha asks the duo to investigate the Karaven moons. She says that there are happening strange things there.
Ratchet and Clank search Karaven Meno and find out that a scientist named Tripo Jominus has set up a base on Karaven Perduxa. The duo then continues to Perduxa and finds Tripo Jominus, who says that he had found Raritanium on Perduxa. He shows them his base and gives them a free piece of Raritanium.
Ratchet returns to Sasha, who is on the Phoenix. Sasha says that they have found Captain Qwark on an asteroid and that he is now in Metropolis's hospital. The next day, Ratchet and Clank fly to Metropolis. They visit Qwark in the hospital and suddenly hear an explosion outside. They find out that Metropolis is under attack by it's own citizens. They defeat the horde of civilians, rescue Qwark and bring him to the Phoenix.
They find out that a strange signal was coming from Karaven Perduxa towards Kerwan. They want to check things out, when a transmission is received. Big Al, Sasha, Helga, Skrunch, Skid, Ratchet, Clank, a Galactic Trooper and a recovering Captain Qwark listen to the transmission. A mysterious guy named Reaper threatens them not to come to the Karaven moons. Ratchet, Clank and Qwark go once more to the Karaven moons to investigate.