Greyhawk will be a lengthy single-player role-playing game that will let you create up to five characters for your initial adventuring party, though over the course of the game, you'll have an additional three character slots that you can use to recruit hirelings who will join your cause for various reasons, not all of them noble. The game will be powered by a fully 3D engine that will render 3D environments, character models, and a variety of good-looking special effects, including flame and smoke effects on torches and magic spells, as well as day and night cycles. We were able to get a firsthand look at Greyhawk: The Temple of Elemental Evil at this year's E3.