The ideation phase for The Last of Us began after Naughty Dog finished Uncharted 3. They considered rebooting an old IP like Jak & Daxter but decided against it to avoid straying too far from the original. They created a new IP set in a post-apocalyptic world focusing on the developing relationship between two people. Concept art, character details, and the overgrown urban setting were developed in pre-production. Actors Tory Baker and Ashley Johnson were cast as Joel and Ellie, and gameplay aimed to develop relationships through a realistic story, though removing threats made it less exciting. Production involved programming, voice acting, animation, and sound design to implement ideas. Post-production