| Category | Regions |
| World | Bal-Kriav |
| Type | Tier 2 Underdark |
| Continent | Karterus |
Glimmerkrim is the Underdark region beneath Dhark Bolg. It has long been home to rival derro and fomorian city-states. They have only once been unified, this in the Lith-Crillion Era when the Reds of Kilth had them battle the dwarven city-states of Aerruxa and those above them on the surface.