Oh, hey if you guys want a more survival focused Game of Dwarves, you should check out Towns. It's still in alpha and is kinda rough around the edges, but if you can overcome that, it's a great game. You build a "Town"/Base, or whatever.
your town can be underground or topside, you need to accommodate your pop with food and shelter, make taverns where heroes can move in, make workshops to produce iron tools and weaponry for your soldiers, make farms for a steady supply of wheat or farm animals, like chicken or cows. Bakeries to bake better food. Mines. Hospitals/clinics, whatever, you get the point. And doing all this in a hostile environment, every so often a "Siege" will happen, with monsters besieging your town walls(if you have any) and attacking citizens.
That's far from it though, it has a lot of depth and interesting gameplay. Check it out on Desura
here. Thought it might fit some of you people's needs in terms of survival mechanics.