There are certain things that CitiesXL can't do, one of them is the limitation of density. You can't just build a city expecting to be as dense as those ones in South Africa, let alone emulating a city in South Africa like Johannesburg. I'm pretty sure over 90% of you guys don't even had cities done, but that's SC4 where you just plop your lots emulating a real metropolis.
There is this misconception that a high population can be crammed and should be but there are more than 10 factors affecting the place, in the process called place making. You guys have always thought that the North American or European City is this base for all cities, and quite frankly, it is not. We North Americans and Europeans (same as people in Australia and New Zealand) have been in this idea that it would take a lot of space for this or it should be crammed as that. No, it doesn't. I've been to a "small" Filipino city a quarter the size of Winnipeg but manages to keep the same population and pulling it off with low density buildings with subdivision style homes. The reason? Occupants. You might have come from a 4 or 3 person family, but when there are 12 people at your house, it is quite different from the argument.
'Realism' should not be ported in this or any other applications because there is a limit both on the game mechanics and the narrowness of members' perception of what 'reality' is, like guys this isn't earth, again, we don't even have models that show a simplification of reality. What you think is real, seen on your never ending talk of political parties, political issues, or personal problems, is way different on what is real reality at the bottom of the s***hole of a slum or a tenement (quite frankly, I lived in one and my parents suffered selling vegetables in the street. I was taught how to collect and extract metals from computers). Welcome to the mystically confusing world of Urban Geography, where the 'most important' is overblown and the lesser known but really important stuff is omitted. So far, this application had emulated a sense of a place that is just a bit different than what was perceived as being real. Compare the pictures above to Luanda, Angola or Lagos, Nigeria.
If you are looking for real, go live at the slum.
This looks European, but guess which city is this.
EDIT: Changes