A One-Round Living Greyhawk Bandit Kingdoms Regional Interactive Adventure
From the introduction:
After a chasm opened in the ground near Thunk's Hunting Lodge during a ceremony held to honor the fallen dwarf Ulfgar, a secret city of duergar was discovered. Can you help the dwarves of the Combination clear out a city of their evil, grey-skinned cousins and, in doing so, help them lay claim to a home of their own?
A Bandit Kingdoms Regional Master Maze Interactive Adventure set below the Tangles during the 8th through 14th of Flocktime, for [character levels] 2 - 14.