Halloween Experience Take-on London's newest scare-fest

Project E20

Project E20 has escaped containment beneath the ArcelorMittal Orbit, unleashing a highly contagious experiment that threatens to spread across London. Enter the military-locked facility, survive the terrifying scare maze and reach the Helix protocol.

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From £35.00

(+£5 booking fee per order)

Book now

This is a ticketed experience with limited capacity, everyone attending will require a pass to gain entry. Please review our adventure & medical restrictions and terms and conditions before purchasing.

Zip World London

Stratford, E20 2AD

2 adventures at London

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Your ticket

A standard ticket includes access to the ArcelorMittal Orbit, the scare maze and the Helix slide.

Duration

This event runs from 26th October - 31st October 2026, 4:00pm - 10:00pm.

Age restriction

Due to the frightening nature of this event, children must be aged 9+. Anyone under the age of 18 must be accompanied by an adult aged 18 or over.

The world’s longest tunnel slide has been transformed into a kinetic generator.

Every successful descent down Helix creates one charge, and 5000 charges are needed to power the containment system and seal Project E20 inside. Your mission begins at a military checkpoint, where you’ll receive protective equipment and your briefing before entering the facility.

Included in the ticket

Scare Maze

Included with every ticket, the Project E20 scare maze awaits 80 metres above London. Make your way through the darkened facility, navigating twisting pathways while avoiding the monsters and mutated subjects created by the project. Your objective is to survive the maze and reach the end, where the Helix slide awaits.

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Included in the ticket - 1 slide

Helix

The Helix slide is more than just a thrilling descent, it’s your chance to help contain Project E20. As you race through the world’s longest and tallest tunnel slide, your speed and friction generate vital kinetic power. Every descent creates one charge towards the 5000 needed to keep the containment system running and prevent the outbreak from spreading.

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Experience scares from new heights

For years, a secret genetic experiment has operated beneath the ArcelorMittal Orbit - its goal was to push the human body beyond its natural limits. But the experiment went too far. The subject is no longer human and it’s highly contagious.

Now, the area is under military lockdown, the research team are trying to contain it but the facility's power is failing, there is only one chance to prevent the outbreak from reaching London - the Helix protocol.

Restrictions

Before booking this adventure, please carefully review the following restrictions to ensure you and your party meet the minimum participation requirements. Any participant under 18 years of age must be accompanied by an adult aged 18 years or over, and in most cases, an adult must take part in the group unless stated otherwise.

Supervision for under 18’s

1 participating adult 18 yrs+ is required for every 7 children <18 yrs

Min Height

A minimum height of 1.3m is required for this adventure

Max Weight

Participants must weigh no more than 130kg to take part in this adventure

Min Age

You must be at least 8 years old to take part in this adventure

Strobe lighting

Please be aware there is strobe lighting throughout the event and may affect people with cognitive conditions such as epilepsy or migraines.

Suitable Footwear

Closed-toes, flat shoes are required such as trainers or boots. Open-toed or any shoes such as high heels, crocs or flip flops, are not permitted.

Jewellery

Facial jewellery is not permitted on this adventure. You will be asked to remove it completely or tape it over, depending on its location, before taking part.

Capture your reaction with our scream cam

What better way to relive your experience of the world's longest tunnel slide in the dark. Watch your reaction back again and again and share with your friends.

Project E20

80 metres up. Nowhere to hide. Can you survive?

Survive the terrifying maze 80 metres above London, then take on the Helix slide to generate the power needed to save the capital.

From £35.00^*

(+£5 booking fee per order)

Book now

Zip World London

Stratford, E20 2AD

How to find us

You’ll find us located directly next to the iconic London Stadium, within the Queen Elizabeth Olympic Park. We are easily accessible via a number of public transport routes, including 10 tube and train links (which includes the 24-hour night tube on the Central and Jubilee lines). We’re just 7 minutes from St. Pancras International.

London

We recommend using public transport, but you'll have no trouble reaching us regardless of your mode of travel.

Address

ArcelorMittal Orbit, Stratford, Newham, Greater London, England, E20 2AD

Zip World London

Stratford, E20 2AD

Get Directions

ArcelorMittal Orbit, Thornton Street, Stratford Marsh, Queen Elizabeth Olympic Park, Stratford, E20 2AD, Newham, Greater London, England, United Kingdom