Forges & Foundries

Dumathoin's Anvil: an ancient golem designed to build weapons of war. Churns out swords, armor, siege equipment at a crazy rate, given access to metals. Designed by the gods, built by giants, motivated by the spirits of the volcano. Shaped like a huge serpent? A fire giant of mithril? A mish-mash collection of gnommish engineering? Continues to dive deeper into the mines, building its path as it goes, meaning you'll be exploring new territory no matter how good the maps.

The Worm: patron god/spirit/totem of arcane academics. Often depicted as a great earthworm with spectacles and a small crown. Perverted into the Worm That Walks when energy is fused with the undead. The spirit of the worm is amoral collection of information and power. All wizards are, a little bit, the worm.

Spawning Pits: demon-forges that walk across the Abyss, each one producing a slightly different variation of demon. They vie for power in a kind of hyperactive natural selection, constantly warring with each other to attain a higher form. Basically, demons are the Zerg. Hordes of hundreds of quasits might scrap, testing barbed stingers against venomous fangs to see which is more effective. The winners tear apart and eat the spawning pit of the losers, and their home hive continues on across the shattered landscape.

Demon Forges: there's nothing useful in the Abyss: not wood, stone, or steel. Anything you want to make has to be made of flesh, of which there's plenty. Some of the spawning pits have been rejiggered into living forges, which eat lesser demons and then crank out swords of keratin, bone spears, armor made of cartilage and chitin.