Love it— the geological aspect of it is simulated beyond my armchair level of expertise, so I'm generally quite happy with the results.
The political side of the world is pretty well done with simulation in detail, but I'd love to see more nuanced politics, stuff like meaningful civil wars where factions split and inter-fight.
I would love to see more climate modeling in DF as well. Biomes are a great start for climate, but I would really like to see things like the amount of rainfall you get affecting what crops you can grow.
