How many wizards are in this town? How big is the town guard? How big is the town? The City Builder is an MS Excel spreadsheet that can tell you just that! Plug in the "base population," the number of adventurers and tradespersons, and the file calculates how many farmers, how many adventurers, and how many everything live in or near the city! It even calculates the number of spouses, children, and provides a skill breakdown of the people who live in town.