|Leader||The King of Shit|
|Inhabitants||Swineherds, Criminals, The Wretched|
Underworld is located in the catacombs beneath Bartertown.
While the origins of Underworld are unknown, and the origins of Bartertown are disputed, what is known is that the pig-shit-turned-fuel operation is the brain-child of the imp Master, better known as the more intelligent half of the duo Master-Blaster.
The King of Shit has since claimed the honour of ruling Underworld.
Underworld is home to its leader, the King of Shit, as well as to the factions that provide the labor force for the endeavour: the Swineherds, The Wretched/Refugees, as well as any Criminals being forced to serve time below the market town.
Underworld produces the methane fuel that runs Bartertown.