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Uncover the frame-up in Guillaume Seznec's 1923 conviction for Pierre Quéméneur's murder. Hunt clues across Morlaix to expose the conspiracy and solve France's greatest judicial scandal.
📱 1 to 10 phones · 1 team per phone · Independent codes
In 1923, Pierre Quéméneur, a cunning Finistère politician, vanished after a clandestine meeting in Morlaix with Guillaume Seznec, a local sawmill owner
You are an imperial archivist, tasked by Napoleon in 1807 to uncover a crucial document hidden within the intricate streets of Paris's 7th arrondissement.
Your mission takes you
Immerse yourself in the heart of Paris, in the 7th arrondissement, to decipher the secrets hidden behind Haussmannian facades and imperial monuments.
« Fluctuat nec mergitur »— Official motto of Paris, since the 16th century
Your quest begins at the Place de l'École Militaire, a 55-hectare esplanade created in 1751 by Louis XV for his Military School. It was here that Napoleon Bonaparte attended school between 1779 and 1785, before becoming the officer who marked French history. The classical architectural lines by Jacques-Ange Gabriel, who designed the School between 1751 and 1773, bear witness to the grandeur of the Ancien Régime and set the scene for your investigation into the heritage of Île-de-France. Here you collect your first directives, already feeling the weight of Paris's history on your shoulders.
Continuing your journey towards the Dôme des Invalides, you admire this architectural feat by Jules Hardouin-Mansart, completed in 1706 under the reign of Louis XIV. With its 107-meter height, this dome is one of the tallest in France and has housed Napoleon's tomb since 1840, transferred from Saint Helena. The Église du Dôme, classified as a Historic Monument, is adorned with frescoes by Charles de La Fosse dating from 1705. This site, at the heart of the Musée de l'Armée Invalides, is a testament to French military power and a key location for deciphering the imperial allusions in the document you are seeking.
The Hôtel des Invalides itself, founded in 1670 by Louis XIV to house invalid soldiers and completed in 1708 by Libéral Bruant and Jules Hardouin-Mansart, is your next stop. Its Cour d'honneur, 198 meters by 164 meters, once accommodated 4,000 people. Since 1905, it has housed the Musée de l'Armée, one of Europe's most significant collections of weapons and armor. It is within this labyrinth of 18th-century classical architecture that you decode military symbols, essential for understanding your mission on this thematic circuit of Paris.
Your route then leads you to the Assemblée Nationale, at the Palais-Bourbon, a building constructed between 1722 and 1728 for the Duchess of Bourbon, and acquired by the State in 1807 – the very year of your mission. The seat of the Chamber of Deputies since 1830, its hemicycle, restored in 2000-2002, can seat 925 people. Its neoclassical facade on the Seine, 125 meters wide, mirrors the Palais du Conseil constitutionnel. As an imperial archivist, you search for clues in the archives of the nascent republican institutions, as the political upheavals of the era are crucial to your investigation in Paris.
Your exploration of the 7th arrondissement of Paris concludes at the Pont Alexandre III, built between 1896 and 1900 and inaugurated on October 14, 1900, by President Loubet. Named in homage to the Franco-Russian alliance, its foundation stone was laid by Tsar Nicholas II in 1896. Its unique arch, spanning 107 meters, one of the largest steel arch spans of its time, and its Art Nouveau decoration with four 17-meter pylons and sculptures by Frémiet and Coutan, offer a contrast to the classical architecture you've traversed. This bridge, part of the UNESCO World Heritage site of the Banks of the Seine, symbolizes Paris's resilience, "Fluctuat nec mergitur". Here you assemble the final pieces of the puzzle, your interactive visit to the heritage of Île-de-France having revealed the secrets of a crucial imperial document for the history of Paris.
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
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 · 15€No calendar booking. Code sent immediately by email.
🔒 Secure payment · Code in 5 min · Free cancellation
Investigate a real French criminal case that made headlines for 80 years
Discover the flaws of an emblematic trial and the evidence that exonerates Seznec
Use testimonies, press clippings and period documents to solve the mystery
Justice or Truth?
Sometimes they diverge
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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Immerse yourself in the heart of Paris, in the 7th arrondissement, to decipher the secrets hidden behind Haussmannian facades and imperial monuments.
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.
14€. Explorez l'Hôtel Biron, construit en 1728, devenu l'atelier d'Auguste Rodin en 1908, abritant ses sculptures emblématiques et ses jardins à la française.
15€. Visitez l'une des plus importantes collections d'armes et d'armures d'Europe, située dans l'Hôtel des Invalides, et découvrez l'histoire militaire de la France.
À partir de 3€. Savourez des créations de macarons aux saveurs innovantes, une pause gourmande typiquement parisienne, avenue Bosquet.
Gratuit. Profitez d'une promenade relaxante le long des berges classées au patrimoine mondial de l'UNESCO, offrant des vues sur le Pont Alexandre III et les monuments emblématiques.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.