In the last few years, gaming behemoth Wizards of the Coast has expanded its "Dungeons and Dragons" product line with several board games. Last year's "Lords of Waterdeep" drew critical praise and awards for its drafting and questing mechanics. Recently, Wizards released "Scoundrels of Skullport", the first expansion for "Waterdeep." How was the original game created? And how challenging was it to expand upon it? We talked to game designer Rodney Thompson.