Mount Mayhem Haunted House

Phoenix, AZ   /   1 Review

1740 East Purdue Avenue, Phoenix, AZ, USA

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October 27th - 31st 

7 pm- 9:30 pm

Mount Mayhem Haunted House in Phoenix, Arizona

Mount Mayhem: Psykosis 2023

In 2022, our bayou inhabitants wrestled with their demons, and this year, they are now manifesting the resulting psychosis in a myriad of nightmares, real or unreal, trickery of the mind, or simply broken reality. The psyche is clever and what is real or imagined can be impossible to decipher. From hallucinations of whispering voices and visual delusions to the paranoia of being hunted, stalked, and experimented on… the mental torment makes itself known in this season’s Mount Mayhem Haunt, so prepare yourself and don’t let your brain play tricks on you…

Mount Mayhem 2023 - Psykosis


  • Children under the age of 16 must be accompanied by an adult. NO EXCEPTIONS!
  • Only one time through the haunt and no repeat customers on the same night.
  • Please be patient as we try to get the line in as fast as we can. Trust us, we want to scare you.
  • Please respect our neighbors and do not sit or loiter after you have finished your scare.
  • Our doors close at 9:30 pm. Our last group will be let in at 9:20 pm. Plan accordingly.
  • Reservations will be served promptly. Please go to the reservation line.
  • No groups larger than 5 people at a time. Bigger groups will be split. NO EXCEPTIONS
  • We reserve the right to refuse entry to anyone!

About Mount Mayhem

  • This Haunt is at a private residence and put together by the kids and family.
  • This Halloween display is in our backyard and small groups (up to 5) can go through at a time.
  • Please read the rules on the sidebar and please wear covered shoes. NO heels or flip-flops…
  • There are live actors as well as moving and non-moving props.
  • We do this because we love Halloween and creativity for our neighborhood.
  • The haunt is complimentary but donations are accepted.
  • No actors will touch you.
  • We spend over 150 hours yearly building all our props and we change themes yearly.
  • So with that being said please feel free to bring your kids as this is a family-friendly yard haunt.
  • Enter at Your Own Risk
  • Mount Mayhem’s Mortem & Times 2020

Mount Mayhem is open on October 27th – 31st,  from 7 pm- 9:30 pm

Mount Mayhem Mortem 2023 Preview Video

Last Year’s Trailer for Bayou

Posted in Free Haunt, Haunted Attractions and Haunted Houses

One Review

  1. Arnie Bergerud

    We have been going to this family haunt since it started. It’s amazing watching the kids grow up and become these really scary ,professional actors and actresses. Hands down the best family friendly haunt in the Phoenix area. The only free haunt that will scare you. Making a donation is optional, but it’s the kind of haunt that makes you feel like donating. Thank you and can not wait to see what scary creatures awaits my family this year. Thx you Mount Mayhem staff

    October 24, 2022 at 5:32 pm

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