The Forsaken Den was a cave within the ruins of the Je'daii temple-city of Kaleth on the planet Tython. The cave contained the ruins of a meditation shrine, and it was used as a base by the native Flesh Raiders during their uprising in 3643 BBY. During the uprising, a Selkath Jedi named Laotah tried to investigate activity in the area, but was mortally wounded by the Force-sensitive natives in the cave. However, the apprentice of Jedi Master Orgus Din was sent to eliminate the base, and defeated the Flesh Raiders within.
The Forsaken Den appears in the BioWare MMORPG Star Wars: The Old Republic, as a class-restricted story phase for the Jedi Knight mission "Dark Temptations."