My Cities: Skylines metropolis ended up pretty big! The game, like its peers in the genre, encourages you to go big in order to unlock new/better stuff. But you don't have to. In fact, you make your city as small as it could possibly be.
This PC Gamer piece shows what happens when you build a city that has all kinds of other buildings and services, but only a single home. And then what happens when you start following the daily routines of the family that lives there.
Turns out there are a lot of empty classrooms. And... quirks when it comes to death.