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Decipher the hidden codes embedded in Vichy's Belle Époque spa architecture to expose a dark conspiracy buried beneath the thermal baths during the Occupation.
📱 1 to 10 phones · 1 team per phone · Independent codes
Vichy, 1940–1944
You are Philippe Pétain, head of the French State in 1940, as France's political stakes play out in Vichy's thermal district.
Your mission, should you choose to
Immerse yourself in the Belle Époque's effervescence in Vichy, where thermal waters sometimes concealed unsettling state secrets.
« Liberty, Equality, Fraternity »— French Republic, Inscription on the pediment of French public buildings since 1880
Your investigation begins at the Kiosque des Sources, a Historic Monument classified in 1987. Built between 1902 and 1903 by Lucien Woog and Charles Girault in the Art Nouveau style, this pavilion in the heart of the Parc des Sources allowed the tasting of Vichy's thermal waters. It is here, amidst the spa-goers, that the first clues are hidden, echoes of the conversations and intrigues that shaped the thermal heritage of this spa town in Auvergne-Rhône-Alpes. Travel back in time to when European high society flocked to Vichy for its cures.
Continue to the Opéra de Vichy, a neoclassical building erected between 1861 and 1865 under the impetus of Napoleon III. Classified as a Historic Monument in 1990, this 850-seat opera house, with its pediment sculpted by Victor Ghyssens, was the scene of many social and political gatherings. The balconies and boxes still echo with the dramas and comedies played out there, from the whispers of ministers to the laughter of Empress Eugénie de Montijo, who often accompanied the Emperor during his stays. It is here that you will decipher the symbols hidden in the architecture, witnesses of a bygone era.
The Chalet de l'Empereur, or Napoleon III Chalet, built in 1861, reveals a more intimate facet of Vichy's history. This Swiss-style wooden imperial residence, now the Napoleon III Museum and classified as a Historic Monument in 1984, was the emperor's retreat during his cures. Its covered galleries and its approximately 300 m² housed the thoughts of Napoleon III, who transformed Vichy into a modern spa town. It is in this setting that you will find elements related to imperial policy and the influence of the architect Eugène Viollet-le-Duc on the urban projects of the time.
Your route then takes you to the Hôtel du Parc, a luxury Art Nouveau hotel built in 1908, its facade adorned with Zsolnay ceramics from Budapest. This emblematic Belle Époque venue, frequented by Marcel Proust during his cures in 1905, was also the seat of Philippe Pétain's government from 1940 to 1944. Its walls witnessed decisions that marked French history. Not far, the Église Saint-Blaise, built between 1864 and 1867 by Viollet-le-Duc in an Auvergnat Neo-Romanesque style, with its 45-meter bell tower-porch, offers an architectural contrast and a perspective on the spiritual life of Vichy's thermal district.
Finally, the Promenade des Planches, laid out in 1823 and lined with century-old plane trees for 700 meters along the Allier, concludes your thematic circuit. This emblematic place, restored in 2004 with its oak slab paving, was the scene of parades of European high society. You end your exploration at the Hall des Sources, inaugurated in 1903. Its iron and glass architecture by Lucien Woog, classified as a Historic Monument in 1987, houses 14 mineral water dispensers. It is here, at the heart of this thermal heritage, that you will assemble the last pieces of the puzzle, revealing the secret of this regime and the rich history of Vichy, a spa town in Auvergne-Rhône-Alpes.
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
5-10 curated sites across the territory
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.
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Uncover the underpinnings of a pivotal era and the secrets of a city that left its mark on French history.
Explore how the thermal springs shaped Vichy's identity and legends, for better or for worse.
Reconstruct a hidden document, the 'Protocol of the Waters', revealing the truth behind the city's public image.
Truth, like water, always finds its way.
Unravel the Protocol of the Waters and reveal Vichy's hidden past.
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 Belle Époque's effervescence in Vichy, where thermal waters sometimes concealed unsettling state secrets.
1 purchase = 1 phone. Play several on the same device.
No calendar booking. Code sent immediately by email.
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Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.
12€. Assistez à un spectacle ou visitez les coulisses de cet édifice néo-classique de 1861, classé Monument historique, pour admirer son architecture intérieure.
6€. Découvrez la vie et l'influence de l'Empereur à Vichy dans son ancienne résidence impériale, le Chalet de l'Empereur, classé Monument historique.
Gratuit. Goûtez les célèbres pastilles de Vichy, fabriquées à partir des sels minéraux des eaux thermales, disponibles dans les pharmacies et boutiques locales.
À partir de 40€. Profitez d'une expérience de cure thermale moderne dans un des établissements historiques de la ville d'eaux, pour un moment de bien-être au cœur du patrimoine thermal de Vichy.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.