There's certainly been a big shift in visual design. Hennig says they're calling it "stylised reality", explaining, "We're not going for photo-real, because we find that creepy ourselves. In a game development environment where so many people are going for this de-saturated, grim reality, we wanted to get the feel of a pulp adventure. There's a saturated, romantic quality to the whole thing."
This ties in with the other concept Naughty Dog has developed for Uncharted: "emotional realism". The idea is you care about the characters because you believe in them. That includes the game's hero, a modern-day treasure seeker called Nathan Drake. During his adventures he meets many allies and enemies who play key roles in the storyline.
"Emotional realism is about creating characters you can buy into as real, down-to-earth, authentic people. They're not over-drawn, over-the-top cartoon characters," says Hennig.
"The characters aren't photo-real, but they're still pretty believable. We wanted to find that mark between too iconic, too cartoony and too photo-realistic, and we're really happy with where we ended up."
Emotional realism is about how the characters behave along with how they look. If Nathan mistimes a jump, he stumbles. If guns are being fired at him, he recoils. If a bullet ricochets off the wall next to him, he flinches. According to Hennig, the very human aspect of Uncharted's main character is one of the key distinctions between this game and Tomb Raider. But surely there are some similarities...