Your investigation leads through the alleys and historic sites of Germany's oldest city. Between hidden clues and peculiar encounters, you'll piece together the real story behind the Treviris family name — while Lord Chester keeps you on your toes with his increasingly creative theories.
A puzzle tour with a sense of humour: less Indiana Jones, more Monty Python. If you want to discover Trier with a grin on your face, this is the one.
Start
Main market
Finish
Electoral Palace
No app needed
Everything runs in your mobile browser. No download, no installation, no hassle.
Play anytime
Start whenever you want. Your token is valid for a full year — no fixed schedule.
Perfect for teams
Groups of any size welcome. We automatically split larger groups for the best experience.
Real-world exploration
Discover hidden gems, local history, and beautiful spots you might never have found.
Frequently asked questions
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Choose a tour — Pick a city and a tour that excites you.
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2
Get your unlock code — After booking, you receive a code to share with your team.
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Meet at the starting point — Gather at the designated start location.
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Activate and go — Enter your code, start the tour, and explore the city.
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Start the web app — No installation needed, just open it in your browser.
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Immerse in the story — Follow a narrative written specifically for the city.
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Solve riddles — Use your surroundings to crack the challenges.
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Discover fun facts — Learn interesting things about the places you visit.
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Mobile device — Smartphone or tablet with a modern browser.
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Mobile internet — To access the web app while on the go.
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Charged battery — A tour takes about 1.5 to 2.5 hours.
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Valid unlock code — You receive it by email after booking.