"There are things in my imagination which I think can only be paintings, things that can only be books, and this thing has to be a game," Barker said. "Is there a movie in it later? Sure. But what it has to be is what it's going to be first, an absolutely killer game."

"I don't want to give too much away just yet, but the concept is that somewhere in northern Africa there is a walled city which is not just a walled city but walls within walls within walls. It's like Russian dolls, spaces within each other, and trapped inside each space is a slice of time where the warriors of good have gone against ultimate evil and have lost."