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The Ultimate Haunted House

Reign of Terror Haunted House is the largest, indoor walk-through haunted house attraction in Southern California. Continuously operating since 1999, we feature more than 135 custom rooms in 10 different, inter-connected haunt themed sections. We are packed with terrifying scenes,  swarms of living and mechanical monstrous characters, amazing scary props, and countless spectacular special effects. All designed to give you a thrilling and fun time.  

Announcing the return of HO-HO-HORROR for 2022!


The Ho-Ho-HORROR December Special Event brings a new, sinister seasonal twist to the Reign of Terror Haunted House experience. During this very special event, our 28,000 square foot Haunted House will be decked out for the dark side of the Holiday Season. Encounter all new surprises you can only find in our twisted winter wonderland, including:

* A very special photo op inside, with ROT’s own Spooky Santa*

* Foggy SNOW-storms INSIDE, where you’d least expect*

*Chilling characters, including a Slasher Santa, Jeering Jack Frost, Colossal Creepy Krampus, Evil Elves and Sneering Snowmen*

*Disturbingly haunting Holiday soundtracks*

*Bizarre decorations, creepy Christmas trees, the glow of gruesome strings of lights, and MUCH MORE*

*Walk through all 135 haunted rooms and our 10 inter-connected attractions filled with thrilling scares and characters throughout, with a hearty dash of Holiday Fear mixed in!*

*WARNING: This is not a “kid’s event”. Ho-Ho-HORROR is not suitable for children under 13 years old*