My play allowed me to build a big colony within a mountain like in dwarf fortress, then I woke up an ancient terror like in df, but something unexpected happened when two of the remaining settlers, a kid and an old lady where able to escape.
I got them to escape the map, then resettle with almost impossible odds, with just the shirts on their backs, no food, tools nor weapons and the kid's just a kid.
Fast forward some odd 20 hours, their tribe was able to come back and re-take the base.
Which is something I've never seen in DF.
A lot of XCOM fans seem to also love Rimworld, Darkest Dungeon, etc. The roster management and permadeath creates unique stories for each playthrough.