The Walled City
Inca gold at the bottom of the bay
📱 1 to 10 phones · 1 team per phone · Independent codes
A Spanish galleon laden with Inca gold sank off Concarneau. Vauban fortified the island to protect this secret. The walls of the Ville Close have never spoken — until today.
A fortified island, a sunken galleon, a treasure Vauban swore to protect
Concarneau's Ville Close is a fortress built on an island in the middle of the harbor. Behind its walls, reinforced by Vauban, a legend persists: a Spanish galleon carrying Inca gold reportedly sank in the bay in the 16th century. Successive governors of the stronghold were allegedly ordered never to let anyone explore the depths. Your mission: enter the Ville Close and find the treasure map before the tide traps you.
« "The sea never gives back what it takes — except to those who know where to look." »— — Proverb of Concarneau's fishermen
Concarneau — Vauban's fortress over Inca gold
Concarneau's Ville Close is one of the rare fortified cities built on a coastal island. From the 14th century, this strategic position made it a major prize in the wars of Brittany. English, French, and Bretons fought over it in turn.
In the 16th century, Spanish galleons laden with New World gold sailed the maritime routes off Brittany. Several shipwrecks are documented along the Finistère coast. Local legend claims a galleon carrying Inca gold sank in Concarneau's bay, and that authorities fortified the island to prevent anyone from accessing it.
Vauban reinforced the walls in the late 17th century, adding bastions and watchtowers. Today, the Ville Close remains one of the best-preserved fortified complexes in Brittany, and fishermen still whisper that gold sleeps at the bottom of the bay.
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.
The Route
5 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?
Island fortress
Explore a fortified city built on an island — a unique place in Brittany.
Treasure hunt
Search for Inca gold sunken in Concarneau bay.
Vauban fortifications
Walk the ramparts and gun ports designed by France's greatest military engineer.
Living fishing port
The adventure blends with the daily life of one of Brittany's most beautiful fishing ports.
Gold sleeps beneath the ramparts.
Enter the Ville Close and uncover the secret of the sunken galleon.
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
Q01Do I need an app or a paper guide?
Neither. Everything plays in your browser (Safari, Chrome) after you tap your activation link. No PDF to print, no download. The trail lives in your phone, that's it.
Q02How many stops are in The Walled City?
Eight stops total. At each stop you find a camera clue, solve the puzzle, collect a fragment of the final code. With all eight, you've got the answer.
Q03Can we play The Walled City as a couple?
Great two-person format. Narration is dramatic without overdoing it, puzzles are designed to spark conversation. Ideal for new relationships or anniversaries — you discover the city and coordinate on puzzles simultaneously.
Q04Do we need 4G data to play?
Intermittent 4G is plenty. Maps are cached at startup. Narration and clues load per stop, so a so-so signal between stops is fine. GPS itself uses no data.
Avis des aventuriers
5.0/5 · 1 avis vérifié
- FRANCK GUERREAU
Did you play la ville close? Check the email you received after your game to leave a verified review.
Your turn to play
From the drawbridge to the ramparts, from the governor's tower to the secret cove — search for Inca gold in an island fortress where every stone hides a clue.
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
🪙+15 TripCoins granted with your booking
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