It depends on when you reserve/show up, which room, how many people are in your party, and/or if you are ok with sharing the room with other parties. If you go to their site and begin the process of reserving a room, you can get an idea of the cost for a group of people.
Hmm, i was there with 8 people for their Sherlock room a couple weeks ago, and it cost us $20 each. We did pay separately though, so maybe if you pay together there are discounted rates like Mackenzie was referring to? Edit: did some digging on their website. Most of the rooms have group discount rates, like Mackenzie mentioned. Batman and Sherlock are a bit more involved and have a flat, per-person rate of $20. More details for pricing and different rooms here: https://www.houseofconundrum.com/pricing/
Their rates are different on how many people are attending. 1-3 people is $25 per person. 4 people is $18.75 each, 5 people is $15 each, and 6 or more people is $12.50 each. Source: www.houseofconundrum.com
I think it's around $100.
Thanks! Your answer is awaiting moderation.