Necropolis: City of Perpetual Darkness is a haunted house attraction in Indianapolis. It consists of four separate haunted houses linked together by a common story. It’s also the only haunted attraction in the area that is completely underground.

The fictional backstory of the attraction is that in 1983, a manufacturing plant was shut down; beneath its foundations, workers found an entire city located miles beneath the surface. Each attraction is part of the city that has been opened for exploration:

– The House

– THe Cemetery

– The Factory

– The Funhouse in 3D

The House, Cemetery and Factory are all fairly standard haunted attractions to explore. Guests who choose to purchase the “combo ticket” to visit all of the attractions will be ushered to each attraction in order to ensure that you soak up the story that goes with the experience. All attractions are staffed with life scare actors.

Slightly different from the other locations, The Funhouse attraction combines midway games with a haunted carnival atmosphere complete with murderous clowns. There is also an interactive “escape room” scenario, Maintenance Man’s Revenge, which was just added for 2017.

If you only want to visit The House, the main attraction at Necropolis, tickets will cost $18 for adults and $10 for children. Combo tickets, which offer access to all of the available attractions, cost $30 per adult and $22 per child.

The attraction is open Friday and Saturday nights from 7 p.m. to midnight, and weekdays from 7 p.m. to 10 p.m. Attractions are explored at your own pace, and it takes between 40 minutes to an hour to see everything.

Necropolis is recommended for adults and teens; the minimum suggested age of visitors is 5 years old, and there are no refunds for anyone who decides not to finish the haunt.