Who Should Attend?
Haunt Owners & Operators
Build smarter, connect with vendors, and learn what’s actually working inside real haunted attractions.
Scare Actors and Performers
Level up your scare skills, meet your people, and learn how to stand out inside the scene.
Makeup & FX Artists
See real techniques up close, connect with artists, and turn creativity into unforgettable scares.
Halloween & Horror Fans
Step behind the scenes and experience the passion that powers Ohio’s haunted attractions.
The Ohio State Reformatory & Blood Prison
Location
100 Reformatory Rd, Mansfield, OH 44905
Date
Saturday and Sunday
May 22nd & 23rd, 2027
Join us for a frightfully fun night at the Ohio Haunters Association Costume Ball during the upcoming OHA Convention! Show off your best costume, mingle with fellow haunters, and dance the night away with music provided by Celebration DJ and Entertainment Services. It’s the perfect way to celebrate the haunt community in spooky style!



O.
Vendors
Top haunt suppliers showcase cutting-edge animatronics, special-effects, lighting, makeup stations, and booking platforms, everything you need to elevate your attraction.

H.
Education
Join hands-on discussions led by industry veterans covering immersive sound, actor safety and compliance, marketing strategies, and the latest in haunt technology.

A.
Costume Party
Step into character and be judged by haunt-industry experts. Prizes will be awarded for various categories.

Escape Rooms at the Ohio State Reformatory
During the convention, the historic Ohio State Reformatory in Mansfield will be running escape room experiences on-site. Slots are limited and sell out in advance, so purchase your tickets before you arrive. Each booking includes a self-guided tour of the reformatory.
Escape From Shawshank
A prison break scenario set in the warden’s chambers. Up to 8 players.
Zombie Apocalypse Lab
A survival scenario inside a hidden laboratory. Up to 6 players.
Cabin of the Damned
A horror scenario set in a forest cabin. Up to 6 players.
Book before the convention. Slots fill up quickly and walk-in availability is not guaranteed. Tickets are non-refundable but can be rescheduled with 24 hours notice.
Operated by Escape OSR. Questions? Contact the venue at 419-522-2644.
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