Id love to see screenshots of your improbable fortresses.
I have a tendency to try and build in the most unlikely and often difficult places.
I usually search for the North most land, or North most forests, hottest regions, most evil, etc.
I admittedly suck at the game, and rarely last long, but this kind of challenge always feels so rewarding.
I had a pretty good fort going in a tundra not long ago. It didn’t fall to chill, or lack of water, or crankiness, or anything like that - I just didn’t account for flying beastmen when making the entrance to my cavern. Batfolk everywhere.
Lol omg. Every fort from now on is completely sealed.