NEW TO LONDON

17 YEARS IN THE MAKING

step beyond the veil

Original stories. Original worlds.
A different nightmare every year.
Ensuring no two visits are ever the same.

The Realm Holds More Secrets

Two large headline attractions are only the beginning.
Your ticket also unlocks five secret immersive experiences hidden throughout the Realm.
Every path leads somewhere unexpected.

Some doors are never advertised. Some stories are only whispered.
Those who wander far enough may discover them.

MORE THAN A SCARE ATTRACTION

TWO LARGE HEADLINE IMMERSIVE HORROR EXPERIENCES.
FIVE SECRET EXPERIENCES.
ONE LIVING WORLD TO EXPLORE.
ENDLESS STORIES.

The Nightmare Realm isn’t built around quick walkthroughs. Each headline experience is a fully realised horror journey, combining cinematic storytelling, live performances and unforgettable environments. But the story doesn’t end there. Beyond each attraction lies a world of hidden encounters, secret experiences and stories waiting to be discovered.

a nightmare from overseas

For more than sixteen years, The Nightmare Realm has built original worlds, unforgettable characters and award-winning Halloween experiences in Ireland.

This October marks a new chapter.

For the first time, The Nightmare Realm crosses the Irish Sea, bringing its unique brand of cinematic horror to London.

But we didn’t come to recreate what you’ve seen before.

We’ve come to tell a brand new story.

Inside Avery Hill Mansion, A Nightmare From Overseas unfolds through two headline immersive horror attractions, Halloween Town and hidden experiences woven throughout the Realm. Every environment, every character and every encounter has been created exclusively for this chapter.

The Nightmare Realm was never built on repeating the same scares.

Every year, we build a new world.

Every year, we tell a new story.

This year…

London becomes part of the legend.

THEY SURVIVED.. WILL YOU?

"I've visited haunted attractions all over the world, including Halloween Horror Nights in Orlando, and The Nightmare Realm ranks with the very best. Excellent mazes, incredible atmosphere and highly recommended."

'The Nightmare Realm takes the thrill of a horror movie one step further, bringing it to life with Oscar-deserving horror actors. If you're looking for scream-worthy jump scares, this attraction is for you.'

'Thank you for last night, we appreciate it! We had a great time!'

'The Nightmare Realm is the best thing to happen to Dublin in a long time'

'TEN TIMES SCARIER THAN WHAT I EXPECTED!'

'Everything about this event was on top form. no other seasonal pop-up event is as big and ambitious as this. All hail The Nightmare Realm!'

"A true spectacle. The actors were incredible. The set design was dark, morbid and brought to life by a hard-working and passionate cast."