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Uncover the secret hiding place of Saint Martin's lost relics, vanished from Caesarodunum amid Viking raids and hidden by faithful guardians. Solve the coded clues across sacred sites to reclaim the sacred bones before they are lost forever.
📱 1 to 10 phones · 1 team per phone · Independent codes
In 4th-century Caesarodunum, now Tours, Saint Martin—the Roman soldier turned bishop—divided his cloak with a beggar, sparking miracles that drew pilgrims from afar
In 4th-century Caesarodunum, now Tours, Saint Martin—the Roman soldier turned bishop—divided his cloak with a beggar, sparking miracles that drew pilgrims from afar. But after his death in 397 AD, his relics became a divine treasure, guarded in the original basilica. Viking invaders sacked the city in 903, forcing desperate monks to spirit away fragments of his bones, along with those of successors like Saint Brice and Gregory of Tours. These relics were concealed in cryptic locations across the Old Town, their hiding spots known only to a secret brotherhood through riddles etched in stone and stained glass. Centuries later, whispers of rediscoveries echo: relics found in 1889 hidden in the bronze statue atop Basilique Saint-Martin, perched 51 meters high, blessing the city with its right arm. Yet not all were recovered—some vanished again during restorations, fueling rumors of a final cache protecting Tours from calamity. As modern seekers, you must decipher the monks' ancient code, linking clues from the basilica's mosaic tomb, Cathédrale Saint-Gatien's reliquary, and nearby chapels to expose the ultimate sanctuary. Race against time through Tours' medieval heart: outwit the Viking shadows, solve the relic puzzle, and restore Saint Martin's legacy before the trail goes cold forever.
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
« Martinus Turonensis, episcopus sanctus, cuius corpus in hac basilica requiescit, totius Galliae lumen est »— Inscription de la basilique Saint-Martin, VIe siècle
Martin of Tours, born in Pannonia around 316 AD, was the third bishop of Caesarodunum, consecrated in 371. A former Roman cavalry officer, he is famous for the episode where he shared his military cloak with a beggar in Amiens. A disciple of Hilary of Poitiers, he founded the monastery of Ligugé then Marmoutier Abbey in 372, playing a major role in the Christianization of the region and the suppression of Gallo-Roman cults.
After his death in 397 AD, his tomb in Tours became one of the greatest pilgrimage centers in the West, after Rome and Santiago de Compostela. The basilica built over his tomb attracted pilgrims from all over Europe, transforming Caesarodunum into a prosperous holy city. But this wealth also attracted the covetousness of the Vikings who, from 853, began their raids on the Loire, forcing the monks to protect the precious relics of the holy soldier bishop.
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.
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Relive the clash between Caesarodunum's last defenders and Asgeir's longships
Reconstruct the monks' secret manuscript to locate the eight relic hiding places
Explore the remains of the Gallo-Roman capital of the Turons and its colossal amphitheatre
Following the holy soldier bishop
Unravel the mystery of the sacred relics' flight
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, WhatsApp, 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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Travel back to summer 853 and save Caesarodunum's spiritual treasure from Viking hands. Between the Roman amphitheatre and Saint-Martin basilica, discover how the monks preserved the legacy of the soldier bishop who shared his cloak in Amiens.
1 purchase = 1 phone. Play several on the same device.
No calendar booking. Code sent immediately by email.
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