The generation method is rather arbitrary, the goal is to produce a nice looking map, not an accurate model of a city. Maybe in the future I'll use. Moved! Go here to use this tool. Azgaar's Fantasy Map Generator and Editor. Fantasy Map Generator. v. b. LOADING New Map! Layout Style Options Customize? Select preset: Political.
Here's a great little tool if you want an instant fantasy city map made for your RPG . The free website will let you create a small town, large town. Oskar Stalberg's City Generator is a fun little application which can automatically create a map of a fictional town, complete with buildings. I'm looking for something that produces a random map, kind of like what donjon can do. A lot of resources give you the details of a city, but no.
I don't know if this was posted before (didn't see it on the first page) but voila! wilson-hester-genealogy.com Cityographer lets you instantly create a city map and details (residents, store inventories & prices, etc.) You can have the program do it all in one step, or run it in.