The Treehouse of Horror XXVI Event was the 17th major event and the 4th of the Treehouse of Horror events since the game's release. It was released on October 6, 2015 immediately following the end of the Oktoberfest 2015 Promotion. It ended on November 17, 2015. The Event had three different acts with a different prize track for each act. The acts were scheduled as following: * Act 1: October 6, 2015 - October 20, 2015 * Act 2: October 20, 2015 - November 4, 2015 * Act 3: November 4, 2015 - November 17, 2015