The Dragon of the Chézine
Unravel the mystery of the legendary beast that terrorized Nantes in the Middle Ages.
📱 1 to 10 phones · 1 team per phone · Independent codes
A terrifying creature and a forgotten sacrifice still haunt the banks of the Chézine.
The Dragon of the Chézine
You are Eleanor, a young historian from Nantes, at the beginning of the 21st century.
You have been tasked with verifying the truth of an ancient legend concerning a dragon that allegedly terrorized the city in the Middle Ages. Your investigation leads you to the mysterious Chézine Valley and the historic heart of Nantes, where popular tales blend with forgotten archives. By opening your phone, an AR page reveals cryptic clues at the precise locations of the events. The adventure will last approximately 2h30. More than an outdoor escape game: an interactive visit immersed in X years of history, with anecdotes revealed at each stop and confidential sites that classic guides overlook.
Nantes, the beast and the forgotten vow
« Water is my drink, wine a poison. »— Leonardo da Vinci, Codex Atlanticus, circa 1490
The Chézine, between legend and devotion
The legend of the Dragon of the Chézine, often associated with a monstrous snake, is one of the oldest and most persistent in Nantes. It tells of a gigantic beast that terrorized the Chézine valley, northwest of the city, before being defeated by a young knight, whose sacrifice is still commemorated. This narrative, though tinged with fantasy, is rooted in a historical reality where popular fears and religious faith mingled to forge local myths.
The story is intrinsically linked to the Chapel of Notre-Dame-de-Miséricorde, a place of worship erected to thank the Virgin for delivering the city from this threat. The name of this chapel, although the original building has disappeared, still resonates in local toponymy, testifying to the importance of this event for the people of Nantes in ancient times. The dragon, an emblematic figure of chaos, is a metaphor for the scourges that could strike the city, and its defeat symbolizes the victory of order and faith.
A game, a guided tour and a heritage guide — all in one
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. »
How does it work?
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.
The game downloads to your phone on start. Once the "✓ Downloaded" indicator appears, everything works without data — narration, AR, GPS and puzzles. Perfect abroad without a data plan.
Want to go deeper?
Places tied to your adventure — optional entries, totally up to you · per person
The Route
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.
How does it work with a group?
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.
- ✓All codes are independent — play at the same time OR separately, each team advances at its own pace.
- ✓Leaderboard between your teams + global game leaderboard — each score appears in the public ranking.
- ✓More than 10 phones or need a personalized quest? Discover custom tours.
Ready to live this adventure?
Get my code · 12€No calendar booking. Code sent immediately by email.
🔒 Secure payment · Code in 5 min · Free cancellation
Practical info
Why this route?
The Dragon Hunt
Follow the tracks of the legendary beast that terrorized the inhabitants of Nantes and was thrown into the Loire.
The Legacy of Mercy
Discover the history of the Chapel of Notre-Dame-de-Miséricorde, a place of worship born from a centuries-old promise.
The Sacrificed Knight
Unravel the mystery of the anonymous knight who dared to face the dragon to save the city of Nantes.
The legend of the Dragon of the Chézine, more than a myth, a forgotten story.
Discover Nantes through its darkest legends.
9 features nobody else has
OddballTrip combines gamified play, augmented reality and AI. All our competitors deliver 1 or 2 of these angles. We deliver all 5.
AR treasure chest
A golden chest floats in front of the monument. Tap → opening animation → reveals a secret message.
AR narrator character
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.
Magic golden letters
At the puzzle climax, golden letters magically write themselves on the real wall — that's the puzzle answer. An unforgettable visual effect.
Written + audio narration
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.
360° radar + vibration
A mini-radar shows the target even behind you, and the phone vibrates when you aim in the right direction.
Heritage storytelling
Every puzzle weaves in real historical facts (architecture, era, anecdotes). You learn by playing — like a gamified audioguide.
Progressive AI hints
3 levels of AI-generated help: vibe → where to look → answer format. You're never stuck.
AR selfie memento
At the end of the game, capture a selfie with OddballTrip banner + mascot, shareable on Instagram, TikTok.
Zero app to install
PWA technology: open the link, it plays in your browser. Same quality as an app, no App Store hassle.
Frequently asked questions
Q01What's the difference with a regular indoor escape room?
Outdoor escape game format: no physical locks, no actor, no fixed time slot. You start when you want, progress through Chézine Valley and historic center of Nantes, France with your phone, and the city itself is the set. More immersive on local history, more flexible in pace.
Q02What walking pace should we expect?
Easy stroll: between stops you walk 3 to 7 minutes. No tough climbs unless flagged on the product page. If you really want to push, you can jog between stops, but that's not the point.
Q03Does The Dragon of the Chézine work for team-building?
Yes — it's actually one of our main use cases. Outdoor escape game format, teams of 4 to 6, live ranking possible between groups. For companies above 12 participants, contact us: we can issue linked codes.
Q04Is The Dragon of the Chézine stroller-accessible?
Depends on the exact route in Chézine Valley and historic center of Nantes, France. The vast majority of stops are downtown, on sidewalks or squares. If a stair or narrow passage is involved, it's flagged on the product page. Generally: yes, doable with a standard urban stroller.
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Your turn to play
Dare to face the past and reveal the secret buried in the heart of the city.
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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