Monte-Carlo — The Jagger Affair
Uncover the secret notes of Joseph Jagger, the engineer who cracked Monte-Carlo's rigged roulette wheels. Decode clues hidden among the glamour to expose the casino's greatest scandal.
📱 1 to 10 phones · 1 team per phone · Independent codes
In 1879, Joseph Jagger, a brilliant British engineer, arrived in Monte-Carlo with a radical theory: the casino's roulette wheels were biased due to manufacturing flaws
Monte-Carlo — The Jagger Affair
You are a curious journalist in Monte-Carlo, 1873, assigned to unravel the mystery behind Joseph Jagger's unprecedented winning streak.
You arrive in this nascent principality to investigate the
Relive Joseph Jagger's legendary feat who challenged Monte-Carlo Casino's roulette tables in 1873, winning the equivalent of 2 million euros.
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.
Want to go deeper?
Places tied to your adventure — optional entries, totally up to you · per person
The story that haunts this land
Monte-Carlo Casino opens its doors on December 14, 1863 under Prince Charles III's initiative, who entrusts its direction to François Blanc. Architect Charles Garnier designs this 102-meter facade in Second Empire style, crowned by a 43-meter dome. From 1870, the establishment attracts wealthy international clientele, but the roulette tables hide a secret: their artisanal mechanisms present microscopic defects that influence ball trajectories. Joseph Jagger understands this flaw upon his arrival in 1873.
Casino Square, created simultaneously with the complex's opening in 1863, becomes the theater of Jagger's exploit. On its 8,000 m² of paving, the British engineer observes player flows for weeks and secretly notes each table's results. He discovers that one particular roulette systematically favors nine specific numbers. This methodical observation, conducted from adjacent gardens and Café de Paris founded in 1868, allows him to elaborate his winning strategy.
The Casino Gardens, laid out in 1863 over 1.2 hectares, offer Jagger the ideal observation post. Among 2,000 plant species and Belle Époque terraces redesigned in 1910, he studies croupiers' habits and roulette variations. Spélugues Avenue, the 800-meter main artery created the same year, serves as his discreet approach route to the casino. Porte Neuve Passage, a covered shopping gallery from 1870, becomes his refuge for calculating gains between gaming sessions.
The Jagger affair reaches its peak at Casino Terraces, located 60 meters above sea level overlooking Hercule port. In July 1873, after recruiting accomplices to monitor all tables, Jagger bets exclusively on his faulty roulette and the nine favored numbers. In four days, he wins the equivalent of 2 million current euros, forcing management to nightly modify roulette positions. But Jagger quickly identifies his displaced table and continues winning until mechanisms are entirely replaced.
Your Monte-Carlo journey reveals how one methodical man exploited the flaws of an apparently perfect system. From Casino gardens to Café de Paris, each location witnesses this era when ingenuity could still challenge the bank. You leave with understanding of mechanisms that made Jagger's fortune and legend, and a new vision of Belle Époque architecture that served as backdrop to this exceptional mathematical adventure.
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?
Rigged Mechanisms
Uncover the hidden imperfections that allowed a man to anticipate chance.
Keen Observation
Sharpen your observational skills to track down the slightest revealing details.
Ephemeral Fortune
Dive into the story of a stroke of genius that shook the gambling world.
Knowledge is the key to fortune.
Outwit the flaws of a system reputed to be infallible.
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 to download an app?
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.
Q02Does it work offline?
GPS yes (handled by your phone). Maps yes (tiles cached). AI and hints need an intermittent 4G connection.
Q03How long does a game take?
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.
Q04What happens if I'm stuck?
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).
Q05What's the age range?
From 12 without an adult, from 6 with an adult reading puzzles. Works for families, couples, friend groups, companies.
Q06What if my city isn't in the catalogue?
Pre-register or contact us — we'll email you as soon as your city is live.
Q07What is augmented reality exactly?
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.
Avis des aventuriers
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Your turn to play
Relive Joseph Jagger's legendary feat who challenged Monte-Carlo Casino's roulette tables in 1873, winning the equivalent of 2 million euros.
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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