The Urban Arcana campaign setting is the first setting to be released for players of the d20 Modern RPG. It greatly expands on material available to d20 Modern players and includes new races, advanced classes, occupations, feats, creatures, and rules for organizations and secret societies. It contains both short adventures and adventure hooks and presents a fully detailed city for adventuring, including maps. A key feature is the expanded magic system that features new magic items for the modern world.