Descendants of the Great Pressure who call the deep city of Krag-Haldur home, the Vitreous Oresworn are a living testament to the endurance of stone. Their skin is flecked with mineral deposits that catch the light of the deep-earth bioluminescence. If you seek a character who is literally and figuratively as solid as a mountain, someone whose history is written in strata and whose will is as hard as diamond, the Oresworn provide the ultimate foundation for your journey.

Vitreous Oresworn possess a physical presence that demands attention. Their skin is their most striking feature, textured like weathered granite or polished obsidian and often interspersed with clusters of raw amethyst, quartz, or sapphire growing along their shoulders and brows. Their eyes are solid lenses of crystal, glowing faintly in the dark with an inner light. They lack body hair, possessing instead fine, hair-like fibers of metallic copper or silver that grow from their scalps in shimmering manes.

Living in the vertical city of Krag-Haldur requires a culture of extreme precision and shared responsibility. The Oresworn organize themselves into groups called Seams, which function as both family units and professional guilds. They value the Resonance, a philosophical belief that everything in the world vibrates at a specific frequency. Finding one's harmonic place within the community is considered the highest achievement. Their festivals involve massive choral performances where the deep tones of their voices are meant to vibrate the very floors of the city.

Most Oresworn lean toward Lawful alignments, following the rigid laws of the stone that protects them. They often revere the Mother Pillar, a primordial entity representing the stability of the world's core. They find Chaos distasteful, as it reminds them of cave-ins, tremors, and the unpredictable nature of the surface world.

Their architecture in Krag-Haldur is carved directly into the living rock using high-frequency sound and precision chisels. Rooms are usually circular or vaulted to distribute pressure efficiently. They prefer homes with Light Wells where bioluminescent moss is cultivated to provide a soft, ambient glow that reflects off their crystalline features.

They view surface-dwelling folk as fragile and often find them hurried or impulsive. However, they maintain a deep respect for anyone who crafts with their hands, especially those who work with iron or stone. While they can be aloof initially, once an Oresworn pledges their word, it is as unshakeable as a tectonic plate.