Dungeon is the dark-elven civilization of Jadame's interior plateau and the cave-systems beneath it. The faction's elves are not exiles in the way that later ages will tell the story — in Olden Era they are simply the elven lineage that stayed underground when the Sylvan line emerged into the canopy, and the cultural split has had perhaps two thousand years to harden. The Dungeon elves consider themselves the elder branch and the Sylvan elves the apostates; the reverse is also said, with feeling, in the forest.
Dungeon society is matriarchal, mercantile, and tolerant of expertise from non-elven members in a way the surface factions usually are not. Its cities are run by houses, each with a sphere of influence — assassination, sorcery, slave-trade, smuggling, scholarship — and the houses arbitrate among themselves in a formalized way that outsiders mistake for chaos. The faction's magic emphasis is shadow, illusion, and direct-damage sorcery; its philosophy of war is that a battle decided before the first stack moves is a battle worth fighting.
In Olden Era, Dungeon is a rising power. Two of the major houses have begun to extend their reach to surface raids in earnest, and a third is quietly funding scholarly exchanges with Necropolis that the Temple has not yet noticed. The faction is not unified, but the houses agree on one thing: the next age belongs to whoever owns the dark, and they intend to.
For players, Dungeon is the high-skill burst faction. Squishy but fast, magic-heavy, with the highest tier-seven damage output in the game and a tier-six that can end a fight in one round if positioned right.