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London Immersive Mystery Game

TourTruth score 7.0 out of 10

Average

487 reviews · Rated on 1 provider · How we score

  • London, United Kingdom
  • Updated November 2, 2026

Follow Moriarty’s clues through Marylebone in a 3–4-hour Sherlock Holmes-inspired mystery game for teams of 2–5.

About this tour

Step into Sherlock Holmes’s London as Professor James Moriarty challenges you to prove your detective skills. This immersive mystery game turns Marylebone into a real-world adventure, with clues delivered straight to your phone and a trail leading toward Moriarty’s safehouse.

Gather a team of 2–5 players for a 3–4-hour quest. Follow interactive messages and calls from characters, inspect poisons, tackle hands-on puzzles, and unravel riddles as your choices shape the story. The route includes optional break points at pubs and cafes, so you can pause for refreshments along the way. Teams that succeed earn a prize for every player and a place on the leaderboard. Your ticket is flexible, with the option to change your date or time yourself.

Take on the challenge and discover London through a game of clues, choices, and clever teamwork.

Highlights

  • Follow Moriarty’s clues through Marylebone
  • Solve hands-on puzzles, inspect poisons, and unravel riddles
  • Make choices that shape the story
  • Meet characters through interactive calls and messages
  • Pause at pubs and cafes along the route
  • Earn a prize and leaderboard place with a successful team

What's included

Included

  • Real-world interactions with people you meet
  • Prize for each player on successful teams and a place on the leaderboard
  • Hands-on physical puzzles
  • Interactive text messages and phone calls with story characters
  • A story shaped by your decisions
  • Optional breaks at pubs and cafes
  • Flexible ticket with self-service date or time changes

Ratings on each provider

The ratings and review counts each booking site shows for this tour.

Important information

  • Service animals are allowed
  • Public transportation is available nearby
  • Specialized infant seats are available
  • Suitable for all physical fitness levels
  • Follow the mobile instructions to find the meeting point

How this score is calculated

This score is based on one provider. Viator rates it 4.80 from 487 reviews. We place that rating among all Viator ratings and weight it by its review count. If the tour is found on another provider later, both ratings are combined.

How the score works and rating distribution in London
  • Each provider rating is turned into a percentile: the share of that provider's ratings it beats, weighted by review counts.
  • Listings on different providers are combined in proportion to their review counts.
  • Tours with few reviews are pulled toward the average until more reviews come in, so a handful of perfect reviews can't top the list.
  • The result is shown from 0 to 10: this tour scores 7.0.

Provider rating distribution in London

How many tours in London have a provider rating at or below each value. The dashed line is this tour.

  • Viator

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