The decision comes from a desire to avoid past mistakes, game director Bruce Straley told Digital Spy. This isn't the first time that Naughty Dog, the studio behind action-adventure franchises Uncharted and The Last of Us, have talked about the difficulties they faced when moving from the PS2 to PS3. Now, the lessons they've learned are spurring them to keep their tried and true game engine instead of creating a new one from scratch. "We scrapped everything at the beginning of Uncharted 1, and we had a perfectly good engine with the Jak & Daxter franchise," Straley said. "We could have started with something there and then built off of it and only changed the pieces and parts as we needed, when we needed. And that really caused a lot of turmoil." He went on to describe how they plan to approach the hurdles of moving consoles this time around. "We learned our lesson in saying, as we move into development into next-gen, we want to take our current engine, port it immediately over as is and say, 'Okay, we have a great AI system, we have a good rendering system'. We have all these things that already work. Only when we hit a wall will we say, 'When do we need to change something? When do we need to scale it?" Naughty Dog have used the same engine for all Uncharted games and the upcoming The Last of Us, and will keep using it for many years to come. Let's hope it continues to serve them well. Naughty Dog will use existing Uncharted, The Last of Us engine for PS4 [Digital Spy] Questions? Comments? Contact the author of this post at andras-AT-kotaku-DOT-com.