Retro RPG: City System for Advanced Dungeons & Dragons

        City System is an accessory for the Advanced Dungeons & Dragons fantasy role-playing game. It was written by Jeff Grubb and Ed Greenwood, and published in 1988 by TSR. It includes extensive and detailed maps of the city of Waterdeep, and was intended to serve as a companion to Waterdeep and the North. The sheer expanse of the maps drew praise from Ken Rolston of Dragon magazine, although he criticized their lack of personality and utility.
        City System maps the city of Waterdeep in detail on ten large color maps, with another map that shows the city as a whole, and another that plots the interior of Castle Waterdeep. A booklet includes keys to the maps, city encounter tables, information on typical non-player characters, and data on the city's legal code.
        The set includes fold-out maps, a booklet of essays, and presents a large city through numerous charts and tables. Ten of the twelve full-color fold-out maps fit together to depict a vast maze of streets, alleys, and rooftops, with over 200 numbered-keyed locations. The floor diagrams shown on the maps for some of the more notable locations are filled with schematic icons for tables, fireplaces, beds, trunks, barrels, lumber, and other standard features.