Agent_Karyo, miesiąc temu do games w Project Rebearth (in development), an MMO city-builder, with a top-down map style view, where players repopulate a 1:1 replica of Earth, releases a demo on Steam.

But those 81 cities take up a tiny portion of global land area.

A quick Excel import of the table from Wikipedia suggests that the "urban area" for those 81 cities is 190 K KM(2).

Total land mass on early 148.94 M KM(2).

So the world land could hold ~63,400 such cities.

It would likely take many years to build a city like Guadalajara (#81 on the wikipedia list).