Monte-Carlo — The Serpent's Secret
Uncover the cursed Serpent emblem hidden during the 1929 Grand Prix. Decode clues at iconic landmarks to expose a sabotaged legend before its dark prophecy strikes again.
📱 1 to 10 phones · 1 team per phone · Independent codes
In the glittering chaos of the 1929 Monte-Carlo Grand Prix, a shadowy figure etched a mysterious serpent symbol onto a racer's chassis—a cursed talisman said to bring victory or doom
Monte-Carlo — The Serpent's Secret
You are a special investigator in the service of Prince Charles III of Monaco, autumn 1863.
Your mission: thwart the conspiracies threatening the development of the Casino district, the beating heart
Dive into the splendor of Monte-Carlo, following a secret hidden among Italian marbles and speeding race cars.
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
« With God's Help »— Official motto of the Principality of Monaco
The story that haunts this land
Your investigation begins at the Place du Casino of Monte-Carlo, created in 1863 by Charles III to house the Casino and the Hôtel de Paris, opened in 1864. This 10,000 m² area was the starting point for the urban development of the district. In the center, the statue of François Grimaldi, founder of the dynasty in 1297, watches over the elegance of the place. It is here that, since 1929, the Grand Prix of Monaco race cars have brushed past luxury hotels, a tradition that forever links the Principality to speed and glamour. You will need to observe every detail to decipher the first clues.
At the Opéra de Monte-Carlo, also known as Salle Garnier, inaugurated on January 25, 1879, you will discover a masterpiece designed by Charles Garnier, the architect of the Paris Opéra. With its 524 seats and decorations of Italian marble, lapis lazuli, and 16-carat gold, this historic monument, classified in 1999, hosted the first performance of Meyerbeer's Robert le Diable before Prince Albert I. Your mission will lead you to examine its ornaments, as the most complex secrets are often hidden in the most sumptuous details of Monte-Carlo's history.
The route then takes you to the Hôtel de Paris Monte-Carlo, opened on August 5, 1864, during the reign of Charles III. This building, constructed according to Jules Touzet's plans with a Second Empire style facade, was extended in 1912 to 200 rooms. It hosted personalities such as Mata Hari in 1917 and Winston Churchill in 1952. Renovated in 2014 for 100 million euros, it has housed Alain Ducasse's Le Louis XV restaurant since 1987. The Hôtel Hermitage Monte-Carlo, inaugurated in 1900, with its Art Nouveau architecture by Hans-Georg Tasso and Louis Majorelle stained glass from 1903, offers a breathtaking view of the Grand Prix of Monaco circuit since 1929.
The Saint-Martin Gardens, laid out in 1855 on the former district cemetery, were renamed in 1861. Spanning 2 hectares, these gardens offer a view of Port Hercule and have been a passage point for the Grand Prix of Monaco since 1929, featuring an emblematic bend. The monumental fountain installed in 1951, adorned with nymph statues, conceals essential clues for your progress. Further on, at the Loews Hairpin, part of the F1 circuit since 1973 in front of the Fairmont Monte Carlo Hotel, one of the most technical bends on the 3.337 km track, you will need to decipher crucial information related to famous accidents, such as Ayrton Senna's in 1988.
Your adventure concludes at the Sainte-Dévote Chapel, built in 1070 and reconstructed in 1665, enlarged in 1911 by Louis Notari. Dedicated to Monaco's patron saint, whose relics arrived in 1070, it is the site of the blessing of boats before the Grand Prix of Monaco since 1929. Its contemporary stained glass, installed in 1950, and its classification as a historic monument in 1961, hold the final key to the serpent's secret. By solving the enigma, you will have not only accomplished your mission for the Prince but also explored the many facets of Monte-Carlo, from Grimaldi heritage to the Grand Prix of Monaco 1929, including its Monegasque historic monuments.
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?
Legendary Race
Dive into the early days of the Monaco Grand Prix, where daring challenged steep streets.
Secret Itinerary
Reconstruct the daring plan of a driver who dreamed of an unprecedented line on the urban circuit.
Era of Pioneers
Discover the anecdotes and iconic figures who forged the legend of Monte-Carlo.
Unveil the plan of a race that history tried to erase.
The spirit of a driver, the audacity of an era.
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.
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Your turn to play
Dive into the splendor of Monte-Carlo, following a secret hidden among Italian marbles and speeding race cars.
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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