Yeah, I kinda feel that you would need to put some humanity and irrational stuff in there to make it look like a city. Some rules about how to access the buildings, people taking shortest path and that kind of thing. I reckon it would be driven by economics to pack as many houses in with least amount of space wasted. Stuff like that. I have said a few times on here that it would be grand to have a program that did that on a huge scale for not just buildings but characters in the city and a full set of parameters driving how they act. It would be great to use that as a mechanism to drive what they do, where they go and ultimately where they build which would grind out cities with economic zones in them and feasible structure.