| Category | Labyrinths |
| Continent | Brucrumus |
| Region | Imgangreth |
| Built | 1 War March 1799 HE |
| Map | Kirgoyle |
Built by the Orgak, this area began as a subterranean outpost, protecting the great barrows of Mauhúlfúr. These barrows, sacred burial grounds of the Toomrur people, are the resting places of the Ogre Lords. Each a labyrinth of traps, shifting rooms, and guardians, as more were built, so did the rumors abounding of the riches in each.
The Inanweg outpost, dealing with subterranean threats and tunneling, was expanded to meet new threats from enterprising grave robbers and the forever wandering Scion of Krephus. The latter of these, more commonly known as purple worms, were the hardest to deal with. Attracted to the fungi growing near and in the barrows, they were always digging in. Many filled by cave-ins, flooded or blocked by magic, the rest became a latticework of cavernous tunnels and security points for patrols and those keeping tabs on what had become a sprawling labyrinth. The original outpost, growing with the need for labor and trade, became the town of Moth Orgak.
Within the Labyrinth of Inanweg are spawning ponds used by the cultists of Juiblex and followers of Zuggtmoy. Each is a special environment for the raising of oozes, slugs, and other slimy horrors.