Halloween is here and it’s not just for kids. Denver is home to some of the scariest haunted houses in the U.S. There are many haunted houses that are too terrifying and too gory to be seen by kids. If you are looking for some adult-themed screams, then look no further. Below are some of the best haunted houses in the Denver area for adults looking for a little haunted fun this Halloween.

13th Floor Haunted House (credit: 13thfloorhauntedhouse.com)

13th Floor Haunted House
4120 Brighton Blvd.
Denver, CO 80216
(303) 355-3327
Dates: Now through November 3
The 13th Floor Haunted House is one of the best in Colorado and has received national attention. When you enter the haunt, voices will explain the legend of the 13th floor and introduce you to one of the scariest haunted houses around. There are many new surprises in store this year. USA Today has named The 13thFloor “one of the best 13 haunted house attractions in the U.S.” This haunt is not for the faint of heart and is a must see this Halloween season. There is even a warning that it “may be too intense for children under the age of 12,” which makes this perfect for a fun adult night out.
City of the Dead
I-76 and 88th Ave. at the Mile High Flea Market
Dates: Now through November 3
The City of the Dead has been rated the best haunted house in Denver. The haunt takes you on an intense and terrifying 20-minute journey through a real zombie city. You’ll never expect what awaits at every turn. This is the “largest indoor haunt in Denver with over 30 uniquely themed, extremely graphic scenes.” This year, City of the Dead will be featuring the new Carnival of Carnage as well.
The Asylum Haunted House
6100 E. 39th Ave.
Denver, CO 80207
(303) 355-3327
Dates: Now through November 3
The Asylum Haunted House has been featured on the Travel Channel’s show America’s Scariest Halloween Attractions and has been rated in the Top 10 Haunted Houses in America by Hauntworld Magazine. It has been completely redesigned for the 2012 season. You will find yourself immersed in the Gordon Cottingham’s Hospital for the Mentally Insane. This is one of the scariest haunted houses around and perfect for an adult, gore-fest night out.
Curse of Slaughterhouse Gulch
3184 S. Peoria St.
Aurora, CO 80014
(720) 261-0570
Date: Now through October 31
The Curse of Slaughterhouse Gulch is so scary that CNN aired news coverage of the popular haunt. All of your most favorite and feared killers will be on hand, including Jason, Michael Myers, Freddy and more. They have been cursed to live at Slaughterhouse Gulch for all eternity, which makes it an undoubtedly terror-filled night for brave attendees.
The Frightmare Compound
108th & Old Wadsworth
Westminster, CO 80021
(303) 467-2273
Dates: Now through October 31
The Frightmare Compound features two haunted houses and has been a staple in Denver for the last 28 years. This makes it Denver’s oldest and longest-running haunted house. The haunt has been plagued by unexplained, supernatural occurrences. The dead are lurking and waiting around every corner. You will travel though the haunted grounds and experience both the supernatural and unnatural.

Michelle Humphrey is a freelance writer living in Denver. Her work can be found here.