A very talented team of the R&C modding community made a level editor for the original trilogy (PS3) Download link is in the comments! Have fun with it. : r/RatchetAndClank
Ratchet & Clank: All 4 One | Ratchet & Clank Wiki | Fandom
Amazon.co.jp: Ratchet and Clank: Into the Nexus - PS3 : Video Games
Ratchet & Clank: Into the Nexus (2013-08-19 build) : Free Download, Borrow, and Streaming : Internet Archive