I've tried looking on other threads, but I failed to find the answers I'm looking for. I'm planning to unleash hell for the first time. I've planning a few cave-in traps with two levels dropping into the route from hell to the surface (I'm going to cut it off from my main fortress). Once those have activated via pressure pads, I dug out a small arena. On the side leading to the surface are going to be a couple of cages containing my siege prisoners and cavern prisoners respectively. Once a pressure pad on the other side of the room unleashed them, I'm hoping that my Hell Defence Force will kill a few demons. Then my fortress, Boltspire, will lock down and become self-sufficient (which it already is, stuff from the traders are luxuries). Any surviving flying demons will hopeful by dealt with by my respectable military. If my military fails to deal with any fliers, I'll cut off the surface and courtyard, bebuild my diminished populace with children, turn Boltspire into new Sparta without all the fatalities and maimings, engrave slabs for the dead to stop any ghosts. My fortress will wait in out for years will the demons are slowly destroyed by sieges, ambushes and caravans. What do more experienced players think of my plan? Any ways to improve it will remaining morally okay for my dwarves? I like to look after my dwarves. Anyone else, however, is fair game. Especially hostiles.