First Concept Art for Uncharted 4 Revealed

Nathan Drake explores underwater cities.

You can finally get a glimpse at Uncharted 4: A Thief's End with some concept art from Naughty Dog and Dark Horse's upcoming book, The Art of Naughty Dog.

The first look at the latest series installment featured a close-up of Uncharted protagonist Nathan Drake, but these new images, via Tumblr, focus on Drake's environment as he rafts through waterlogged cities and wanders stormy tropical islands. The art also features a sunken city, which could set a cool underwater scene for Drake to explore. Check out the somewhat blurry photos below.

The Art of Naughty Dog will be released mid-October, but some of the art is already available online via Gallery Nucleus, which is holding the Tribute to Naughty Dog: 30th Anniversary exhibition in Alhambra, Calif

Uncharted 4 takes place several years after Drake's last adventure as he "is forced back into the world of thieves" to investigate a historical conspiracy involving a fabled pirate treasure. The game is headed by The Last of Us directors Bruce Straley and Neil Druckmann.

The game is slated for a 2015 release on the PS4.