Of course you can use the Suicidator script to generate cities, but you if you do it by hand you'll have more control over the result.
Peter Drakulić writes:
this is a tutorial showing how we could make a cityscape ( a large urban area),in just a few minutes,using Particles and Weight Paint (and some modeling...) offering a somewhat simpler approach.
This is an alternative method to the (excellent) scripts that already exist for this purpose.This is also a method that could be greatly improved,I am presenting here the basic idea.
Hope you'll enjoy it!
Happy New Year my friends!