The Big City!

From the publisher's blurb: Few things scare a new GM more than the thought of creating a City. In a dungeon there's just a few monsters and rooms to worry about, but a city could have thousands. In fact creating a city is actually pretty easy. It's all a matter of thinking like a film director. All he needs to make you think your hero is in a city are Sets (usually 2 dimensional building fronts), some props and some extras - and ... action!