I am making a homebrew campaign that most of not all of it will occur within a single city. The problem I'm running into is the size of the city. With all the research I've done my initial plan makes the city roughly the size of 5 Metropolis cities cluster together.
That seems kinda impractical even if I run it and stat it as 5 different cities. So I'm trying to figure out a good size for the city that could keep higher level PCs interested in staying.
