The City Below
Language
City Dwellers share the same spoken language (Undercommon). Magical practitioners also use a written language (Infernal). They are not proficient in Common.
Magic
City Dwellers do not use magic as Kindred do. They are neither wizards nor clerics, instead practicing entirely distinct traditions of spellcraft.
Technology
While inhabitants of the City tend to have stronger magic than Kindred, their technological prowess is considerably weaker. Weapons are made of stone and bone, clothing is made of monster hides, and worked metal is a rarity.
Architecture
Buildings are uncommon in the City Below. Instead, elaborate tents and decorated caves make up the most common living quarters. Most are charmed with exotic forms of warding to sound alarms or rebuke trespassers.
Religion
Denizens of the City worship the Nine Devil Princes, a pantheon of mythical gods. Where the deities of Kindred are held to exist outside of the physical world, Devil Princes are rumored to walk among their followers in the flesh.