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I made Soviet microdistricts in Urbek
(hexbear.net)
Each of these districts houses about 5000 residents and includes a supermarket, a school, a hospital, a library, a bar, and a sports field. This setup is only possible if you choose Eastern Europe as your region (its bonuses include the top-tier social housing).
I can create an 8000 resident variant by replacing most of the greenspace with apartments. Mechanically it doesn't negatively impact resident quality of life, and in fact it eats up a lot less maintenance, but it looks ugly as hell, so it's only something I do when I'm minmaxing.
