The Dwarves of Middle-Earth versus the Dwarfs of Dwarf Fortress: Who can build the better fortress? Using only the resources available for their respective worlds, the Dwarves and Dwarfs build huge citadels in the mountain ranges on either side of a thirty-kilometer open field. These resources follow traditional alignments: dragons of Middle-Earth, for instance, would never side with the Dwarves, and demons are impossible for the Dwarfs to wrangle effectively outside of a cage.

Each fortress must defend itself from a concerted attack by the equivalent of the "Army of Darkness" of the opposing world. In the case of Middle-Earth, this is a large Orc army, equipped with trolls, siege equipment, and a single Nazgul. In the case of Dwarf Fortress, this is a siege force of goblins in iron and steel equipment, backed up by the typical beasts such an invasion would bring, as well as a single iron humanoid demon for a general.

Which fortress can survive the attack?