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

icon 3 to 4 hours Mobile ticket Free Cancellation
Tickets from € 55.22

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You can select up to 15 travellers in total

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Professor James Moriarty invites you to celebrate the finest minds in London by solving his mysterious challenge, which he has personally prepared. Succeed, and he promises to make you an offer you can’t refuse… Journey across the city on a real world adventure game, set in the world of Sherlock Holmes. Solve a trail of clues sent to your phone as you sleuth your way to uncover Moriarty’s safehouse. Make choices, inspect poisons, solve puzzles and unravel riddles on your quest. Pause for food and drink at built-in break points as you undertake your challenge in teams of 2-5 players. “Perfect… A slam dunk” - Radio Times
  • Interactions with people you meet, in the real world
  • A prize for every player in successful teams, as well as your place on the leaderboard
  • A 3-4 hour immersive experience across Marylebone, London
  • Hands-on physical puzzles for your team to solve
  • Interactive text messages and phone calls with characters in the story
  • A story that changes with the decisions you make
  • Optional breaks in pubs and cafes, where you can pick up refreshments
  • A fully flexible ticket – you can change your date or time yourself, any time
Departure Point

93 Marylebone High St, London W1U 4RD, Verenigd Koninkrijk Follow instructions sent via mobile...

  • Marylebone, London, United Kingdom
    A 3-4 hour immersive experience across Marylebone, London. Journey across the city, solving a trail of clues sent to your phone, in a treasure hunt-style experience. Play a role in the story as you uncover secret locations, unravel riddles and solve puzzles. Pause for food and drinks at built-in break points. Embark on your experience in teams of 2-6 players. Split large groups into multiple teams to play head to head. UK, US, or CA mobile phone number is required to take part in this experience.
    180 minutes
  • Service animals allowed
  • Public transportation options are available nearby
  • Suitable for all physical fitness levels
You can cancel up to 24 hours in advance of the experience for a full refund.
  • For a full refund, cancel at least 24 hours before the scheduled departure time.
  • If you cancel less than 24 hours before the experience’s start time, the amount you paid will not be refunded.
  • Any changes made less than 24 hours before the experience’s start time will not be accepted.
  • Cut-off times are based on the experience’s local time.
Sjtrooper
13 Sep 2025
A really fantastic and fun way to spend a few hours exploring parts of the city that you wouldn’t otherwise have known. The clues can be challenging but are achievable. We had an absolutely fantastic experience.
Alinapavelgh
31 Aug 2025
I’ve done a few treasure hunts with HiddenCity and I can honestly say they’re amazing. The games are thoughtfully put together and the trails take you to see parts of London which you’ve not seen before.
623vanessaw
31 Aug 2025
Such a great day and taken to some interesting and lovely spots in London. I don’t really know much about the story of Sherlock Holmes but I still managed to solve the puzzles with my partner, who is a Holmes fan ????. We will definitely be booking another Hidden City adventure. A great day in London ????????
This tour in London is organized by HiddenCity London

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We always double-check the availability with our local partners for each booking. Even though this is usually a swift process, it can take up to 24 hours. Once this process is completed you will receive your voucher or ticket by email. If our local partner is not able to confirm your booking we will offer you the best possible alternative. If the new date and/or time doesn’t fit your itinerary, we will reimburse the full amount paid.
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