TeDaDeS
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For people that haven't bought Dwarf Fortress, as you'll be stuck on that one for a long time, this game should be somewhat similar: https://www.gog.com/en/game/rimworldI've recently discovered and started playing Dwarf Fortress. I've heard the name before, but was ignorant of its background and what it is - now I feel it will eat up many, many hours...
Dwarf Fortress - Wikipedia
en.wikipedia.org
I think the free version of Dwarf Fortress is also still available: http://www.bay12games.com/dwarves/