The Bad Dream House is a limited-time building first released during the Treehouse of Horror XXIII Event where it could have been bought for 150 treats. It was re-released as a premium building for 85 Donuts in each subsequent Treehouse of Horror Event. It was offered bundled with The Raven during the Treehouse of Horror XXV Event if the player didn't have either of them, and as part of the THOH Flashback Bundle #3, if the player didn't have any of the content of the bundle, during the Treehouse of Horror XXVII Event.