Mulmaster was a city located in the rugged area west of the Earthspur and Galena Mountains in the eastern part of the Moonsea region. After years of opposition, the city finally joined the Zhentarim, becoming a decadent sprawl riddled with crime and corruption. The buildings nearest the docks were the most dilapidated and dangerous, full of poverty and rife with crime. The rich area of the city resided further up the mountainside, imposing its will over the rest of Mulmaster. A person from Mulmaster was known as a Mulmasterite.