The Forgotten Keep is a compact circular ruin arranged around a central space and several rounded tower-like sections. Broken masonry divides the site into distinct pockets while leaving enough of the original structure intact to make its defensive purpose obvious. The geometry gives the map a strong silhouette and multiple routes around the center despite its modest size.

For a GM, this is an efficient ruin map: outer sections can hold guards or discoveries, the center becomes a natural objective, and the curved walls repeatedly break direct lines of attack. In Kingmaker, it fits the Stolen Lands as another remnant of earlier occupation swallowed by wilderness. It can just as easily become a lost watchfort, abandoned noble outpost or the shell of a small magical stronghold in another campaign.