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Decipher the centuries-old secrets locked in Gruyères' archives. Uncover how a small Alpine town built and defended its legendary cheese empire against rival guilds and foreign powers.
📱 1 to 10 phones · 1 team per phone · Independent codes
For over 900 years, Gruyères has guarded the formula and trade routes of its most precious commodity: Gruyère cheese
You are a loyal aide to Pierre du Gruyère, Count of Gruyères, in 1475, tasked with defending ancestral cheese privileges.
Your mission: find the Hidden Great Book
Discover Gruyères, a Swiss medieval village nestled in the heart of Fribourg, where the secret of the counts' cheese monopoly is revealed on every cobblestone.
You're not just buying an escape game. You're carrying a living guide — historical anecdotes, forgotten legends, key monuments, hidden architecture — unfolding as you go.
At each stop, places ordinary guides miss — secret façades, sculpted crests, alleys steeped in history.
Every riddle is rooted in a real historical fact or local legend. You leave with dozens of stories to tell.
Learn to read buildings — flamboyant Gothic, Baroque, Art Deco — like a real art historian, while having fun.
Walk through the city like a novel's character — every alley becomes a stage, every square a theatre.
A voice walks with you at every step, tells the story of each place, reads clues, adds a cinematic feel.
Keep access to the guide & game for 1 year. Come back any time, share it with friends.
« You will not leave this city the way you entered it. »
Explore the city on foot solving puzzles based on real historical facts. No locked room — the city is your playground.
No app to download. Play directly from your browser. Guided step by step, at your own pace.
One purchase per phone is enough. Play with family, friends or as a couple — everyone participates.
Point your phone at the façade: a historical character appears and speaks to you in your language. Golden letters magically write themselves on the wall to reveal the puzzle answer.
Stuck? Progressive personalised hints. The character repeats the puzzle on demand — at your own pace.
French, English, German, Spanish, Italian + 27 other languages auto-translated by AI.
Places tied to your adventure — optional entries, totally up to you · per person
Your quest for the Great Book begins in Place du Bourg, the starting point for cheese fairs since the 13th century. In front of the 1620 fountain, you imagine the weekly Gruyère cheese markets that were held there as early as 1394, surrounded by listed 17th-century buildings. This historic site, the capital of Gruyère AOC cheese, was the beating heart of the trade that made the counts wealthy, and where the regional cheese monopoly you must protect was forged.
Continue to the Château de Gruyères, residence of the counts until 1555. Built in the 13th century, this Swiss historic monument, classified ISOS in 1980, houses 13 rooms open to the public over 2,500 m². It is here that Michel Mayor, official cheesemaker of the 20th century, would have drawn his inspiration to standardize Gruyère AOC. Since 1998, it also hosts the HR Giger Museum, offering a striking contrast between medieval heritage and contemporary art.
The Remparts de Gruyères, medieval fortifications built between 1280 and 1350, lead you along a 1.2 km protection of the medieval village. With 14 preserved watchtowers, the highest measuring 12 meters, these walls were restored in 1905 by the Swiss Society for the Conservation of Historic Monuments. They bear witness to the power of the local lords and their desire to defend a Fribourg cultural heritage vital for the cheese economy.
Rue du Bourg, the main paved thoroughfare from the 14th century, plunges you into the commercial heart of Gruyères. Approximately 300 meters long, it is lined with arcaded houses from the 15th-16th centuries bearing the escutcheons of influential cheese-making families. This ancient shopping street hosted the cheese market since 1360, a place where Josselin de Gruyère, 16th-century bailiff and administrator of the alpine pastures, would have overseen crucial exchanges for the development of local cheese.
Your journey concludes at the Grosse Porte de Gruyères, the main entrance built around 1380, 8 meters high with its original portcullis and machicolations. It bore the escutcheon of the Counts of Gruyère until 1555, symbolizing their power over this Swiss medieval village. As an archivist, you have not only discovered the history of this monopoly but also the efforts of men like Alexandre Cailler, a 19th-century chocolatier, who shaped the regional dairy economy and the heritage of Gruyères. Your exploration has allowed you to understand how this cheese destination became an intangible UNESCO site, revealing the deep connections between history, territory, and cheese.
8 stages through the city
The gameplay: AR, camera, hidden clues
At each stop, open your phone camera: an augmented reality character appears on the façade and speaks your language. Hunt the clue — it materializes as golden letters on the real wall or floats in front of you. When you find it, the phone vibrates, an AR chest opens and reveals your answer fragment. 8 stops, 8 clues to find with the camera, 1 final code.
The stops on your route are a surprise. You'll discover them one by one, guided by your phone, starting from the meeting point.
One phone = one team. Pick the number at checkout (1 to 10).
Solo, or a group sharing the screen. One team, one code.
Family, couple, or 2-3 teams competing. Each phone has its own code and its own score.
Friends, bachelor/bachelorette, small office outing — each their own code, each plays at their own pace. Tiered pricing then €6 flat per phone from the 6th.
Ready to live this adventure?
Get my code · 12€No calendar booking. Code sent immediately by email.
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Dive into the millennia-old history of Gruyère AOP, whose monopoly made the counts' fortune.
Explore the remnants of power of a dynasty that ruled over cheese production and alpine trade.
Untangle the intrigues and trade strategies that shaped the economy of a medieval county.
The milk of the mountains, the cunning of men.
Will you find the secret that protected the white gold of the Counts of Gruyères?
OddballTrip combines gamified play, augmented reality and AI. All our competitors deliver 1 or 2 of these angles. We deliver all 5.
A golden chest floats in front of the monument. Tap → opening animation → reveals a secret message.
Point your phone at the façade: a knight, witch, monk, sailor, detective or ghost appears full-screen and speaks to you in your language with their dedicated ElevenLabs voice (each character has their own unique voice) — your living guide.
At the puzzle climax, golden letters magically write themselves on the real wall — that's the puzzle answer. An unforgettable visual effect.
Every puzzle available as text AND voice-over: read at your own pace or listen eyes-free while walking. Great in groups and for accessibility.
A mini-radar shows the target even behind you, and the phone vibrates when you aim in the right direction.
Every puzzle weaves in real historical facts (architecture, era, anecdotes). You learn by playing — like a gamified audioguide.
3 levels of AI-generated help: vibe → where to look → answer format. You're never stuck.
At the end of the game, capture a selfie with OddballTrip banner + mascot, shareable on Instagram, TikTok.
PWA technology: open the link, it plays in your browser. Same quality as an app, no App Store hassle.
No, never. You get a link, you click, it plays in your browser. That's the point of a PWA: same as an app, without the hassle.
GPS yes (handled by your phone). Maps yes (tiles cached). AI and hints need an intermittent 4G connection.
1 h 30 to 2 h 30 depending on your pace. The timer runs but only for the leaderboard — you play at your own tempo.
You get 3 levels of hints per puzzle (increasing penalty). If truly stuck, you can skip the step (45-min penalty but you keep going).
From 12 without an adult, from 6 with an adult reading puzzles. Works for families, couples, friend groups, companies.
Pre-register or contact us — we'll email you as soon as your city is live.
Point your phone at the façade: a historical character appears full-screen and speaks to you in your language. At the puzzle climax, golden letters magically write themselves on the real wall — that's your answer. After each puzzle solved, a treasure chest floats in front of you. Seeing is believing.
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Discover Gruyères, a Swiss medieval village nestled in the heart of Fribourg, where the secret of the counts' cheese monopoly is revealed on every cobblestone.
1 purchase = 1 phone. Play several on the same device.
No calendar booking. Code sent immediately by email.
🔒Secure payment · Code in 5 min · Free cancellation
🪙+24 TripCoins granted with your booking
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Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.
12.50 CHF. Explorez l'univers surréaliste de l'artiste suisse, créateur d'Alien, dans un château du XIIIe siècle.
7 CHF. Découvrez les secrets de fabrication du célèbre fromage Gruyère AOP, avec dégustation et visite de la fromagerie.
Dès 25 CHF. Savourez les spécialités fromagères locales dans l'un des restaurants traditionnels de la Rue du Bourg.
Gratuit. Suivez les sentiers panoramiques autour du village pour des vues imprenables sur le château et les Préalpes fribourgeoises.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.