Quartu is a planet in the Solana Galaxy featured in Ratchet & Clank, as well as the re-imagined game and movie. It is a barren, rocky planet that is home to large robot factories operated by the blarg, and is home to the robot factory known as Plant Z332 that is the birthplace of Clank. The planet is also home to large Ultra-Mech Unlimited robots, as well as the technology that allowed Clank to transform into Giant Clank.
When Clank was born on Quartu, he viewed an infobot that frightened him, leading him to flee the planet and warn others about Chairman Drek's plan. Later, Clank returned with Ratchet in order to investigate the Ultra-Mech technology and to infiltrate the factory.
In the re-imagined game and movie, Quartu is also the homeworld of the blarg, and its role is combined with Orxon. This version depicts Quartu as a polluted planet home to Skorg City. In this version, Clank was still created in a warbot factory in Skorg City, but the Ultra-Mechs do not appear.
Ratchet & Clank
Quartu was the home to the robot factory Plant Z332 which produced sentry-bots. At one point, with the intervention of Orvus, Clank was produced as a defect. Clank viewed an infobot detailing Drek's plans to extract a large portion of Novalis and use it to create his new planet, a plan which would destroy Novalis. As a result, he fled the planet, only to be chased by Drek's robots and crash land on Veldin.
Later, Ratchet and Clank traveled to the planet for "Find out more about the Ultra-Mech", after receiving coordinates for Quartu on Oltanis during, with a broadcast about the Ultra-Mech technology. They were unable to infiltrate the heavily fortified factory, but could visit an Ultra-Mech Scientist, who was attempting to destroy the Ultra-Mech technology he had been contracted to create as he was unaware that Drek was responsible. Instead, the scientist agreed to use it on Clank and gave him the mission "Destroy the Ultra-Mechs", in which he destroyed Ultra-Mech Unlimited robots before being changed back to his normal size. The Ultra-Mech Scientist thanked them by giving them an infobot with coordinates to Kalebo III, and a commercial for a Hologuise that could allow them to infiltrate the factory. The two were also able to explore the coolant system on the planet to find a Bolt Grabber.
Upon returning from Kalebo III with the Hologuise for "Infiltrate the secure area", Ratchet disguised himself as a Sentry-bot to fool other robots, and eventually was able to infiltrate the factory by bypassing each security point within it. This led them both to Clank's mother, the computer controlling the factory where he was born, who gave them an infobot with coordinates to Drek's fleet that detailed Drek's plans: he wished to destroy Veldin with a superlaser known as the Deplanetizer to use the planet's orbit for his new world. This infuriated Ratchet, and the two set off to Drek's fleet to defeat him.
The robot factory on Quartu was later seen in Clank's subconscious in A Crack in Time. Dr. Nefarious also made reference to the robot factory, saying that once he had control of the Great Clock, he may destroy the factory to prevent Clank's creation.
In Qwark's version of events, and the holofilm, Quartu had a similar role to Orxon, as the home of the blarg. Alonzo Drek growing up had never had a proper home planet, as Drek Industries, his father's company, polluted the planet to the point which it was no longer hospitable. Drek, working with Dr. Nefarious, began to construct New Quartu, a new home planet created with pieces of other planets, taken apart after being destroyed by the Deplanetizer.
Dr. Nefarious operated a warbot factory in Skorg City, used to supply Victor Von Ion with warbot forces to attack the Galactic Rangers and prevent them from intervening in his plan. However, the factory was struck by lightning, causing it to produce a defect, Clank. Drek ordered Victor to destroy Clank, but in "Escape the factory", Clank managed to flee in an escape pod. Victor damaged the pod, causing it to crash land on Veldin instead of reach its destination of Kerwan.
Later, the Galactic Rangers, led by Captain Qwark, launched a direct assault on Drek Industries in "Infiltrate the factory". As they were unable to access the factory, Clank found a way inside through the ventilation shaft in order to disable the security lasers, and locked up Zed, Drek's assistant. As the Rangers attacked, Drek deployed Mr. Zurkons to defend the factory as they arrived. A group of Zurkons cornered Qwark inside Drek's office, where Drek persuaded Qwark to betray the Rangers. The Rangers later regrouped, after defeating a giant Mrs. Zurkon, but failed to capture Drek before escaping. Instead, they interrogated Zed, who revealed the Deplanetizer's next target was Novalis.
Ratchet & Clank
Quartu has a rocky, mountainous terrain on which the robot factories are located. It has a completely green atmosphere, and very little vegetation, with the few plants featured resembling meat-eating ones.