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There are several civilizations that accomplished this. https://en.wikipedia.org/wiki/Kaymakli_Underground_City#See_also https://en.wikipedia.org/wiki/Kaymakli_

• virgildotcodes 3y ago
  It doesn’t seem like those cities have any way to produce food underground without inputs from outside, so no, these would not be examples of self-sufficient underground civilizations. Really cool though, like something out of Dwarf Fortress. I’d never heard of these so thanks for sharing.