Ratchet & Clank is a series of 3D platform/shooter video games. The franchise is developed by Insomniac Games for the console games, with the exclusion of Size Matters and Secret Agent Clank, by High Impact Games for the portable titles, and published by Sony Computer Entertainment for the PlayStation 2, PlayStation Portable, and the PlayStation 3 video game systems. The series will only be available on Sony consoles due to a contract signed with Sony in 2002.
The game follows the exploits of Ratchet (a Bobcat-like creature known as a lombax that is very handy with tools) and Clank (a diminutive sentient robot that befriends Ratchet) as they save the galaxy from several evil forces. The series is noted for the inclusion of many exotic and unique weapons, devices and planets. The universe of Ratchet and Clank's takes place in a science fiction setting, where there are many inhabited planets and the normal rules of relativity do not apply.
Numerous biological and robotic species populate these worlds, some which range from highly developed metropolises to those filled with primordial ooze. A lombax is a fictional species from the series. Lombaxes appear similar to bipedal anthropomorphic cats, with yellow and orange fur, and a tail like that of a lion.
Unlike most other organic species in the games' universe which have two fingers and thumb on each hand, lombaxes possess four fingers and a thumb. The species has an instinctive affinity towards gadgetry and machines. While there have been other characters that seem to have lombax-type features, the game Tools of Destruction establishes that Ratchet is the last lombax in the universe, the others having fled to another dimension.