Moriarty's Game: The Professor's Invitation by HiddenCity

Recommended by 95% of travelers

London, England

Great choice

5+ bookings last month.

3 to 4 hours (approx.)

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Overview

Solve the challenges set before you by Sherlock Holmes' archenemy James Moriarty on a self-guided scavenger hunt through London's West End. Whether you're a diehard Sherlock Holmes fan, an escape room addict, a bored Londoner, or a traveler sick of traditional sightseeing, this interactive mobile game is for you. Your team will solve riddles and puzzles that lead you to landmarks and hidden corners of the Marylebone district.

Visit locations in the West End not found in any guide book
Stop for breaks at selected locations (refreshments own expense)
Take a literary-themed tour that families and friend groups can enjoy
Go at your own pace and pause the tour at any time

What's Included

A 3-4 hour immersive experience across Marylebone, London
A fully flexible ticket – you can change your date or time yourself, any time
Interactive text messages and phone calls with characters in the story
A prize for every player in successful teams, as well as your place on the leaderboard
Hands-on physical puzzles for your team to solve
A story that changes with the decisions you make
Interactions with people you meet, in the real world
Optional breaks in pubs and cafes, where you can pick up refreshments

Meeting and Pickup

Meeting point

The Marylebone
93 Marylebone High St, London W1U 4RD, UK
Follow instructions sent via mobile...

End point

Mayfair, London, UK

Operating hours

02/18/2022 - 05/02/2027
Monday - Saturday : 10:30 AM - 6:30 PM
Sunday : 10:30 AM - 4:30 PM

Itinerary

Marylebone

3 hours • Admission Ticket Free

Additional Info

Confirmation will be received at time of booking
Not wheelchair accessible
Service animals allowed
Near public transportation

Infant seats available
Most travelers can participate
This is a private tour/activity. Only your group will participate

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Cancellation Policy

You can cancel up to 24 hours in advance of the experience for a full refund.

Traveler Photos

Gallery picture 1 (from a traveler's review)

Gallery picture 2 (from a traveler's review)

Gallery picture 3 (from a traveler's review)

Gallery picture 4 (from a traveler's review)

Gallery picture 5 (from a traveler's review)

Reviews

4.8

based on 455 reviews

Total reviews and rating from Viator & Tripadvisor

We perform checks on reviews

Great communications with vendor

DARRIN_D, Jul 2025

I wasn’t unable to attend the game, but he was very accommodating and helpful in my time of need. He told me he will do this at a later date for me. I appreciate that.

Fun and great sites to see

JohhHomebuyer, Jun 2024

We loved it. The game took us all over a couple of neighborhoods in London and to several cool places. We enjoyed looking at all the sites along the way and seeing some of the small streets and out of the way places along the route. The game itself was fun, interesting but not *too* challenging. We thoroughly enjoyed it and will try another next time we are in London. Thank you for a great time!