Springfield Asylum

The  is a limited-time premium building released on June 22, 2016, as a Gil deal during the Superheroes 2016 Event.

It returned on September 12, 2018 during the Super Powers 2018 Event. It was a possible prize in the Mystery Box The Sequel.

About
 is a building where Bart stole one of the homicidal patient's notebooks, and bragged to the boys at school that he wrote the entries himself.

Regular
Milhouse
 * Enter the Asylum - 2h