Monte-Carlo — Rainier's Counter-Offensive
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Monte-Carlo, MonacoMonte-Carlo — Rainier's Counter-Offensive
📍 Monte-Carlo, Monaco·🕐 2h – 2h30·📍 ~2 km
Also available as:HistoricalMysterySpy thriller

Monte-Carlo — Rainier's Counter-Offensive

Uncover Prince Rainier III's secret counter-offensive against post-WWII threats and hidden Nazi fortunes. Decode clues across iconic landmarks to expose the conspiracy that nearly toppled the Principality.

📱 1 to 10 phones · 1 team per phone · Independent codes

Difficulty
·From age 14 years
Starting point :Palace Square, Monaco-Ville

In the shadow of World War II, as Allied forces liberated Monaco in September 1944, vast Nazi fortunes—equivalent to hundreds of millions today—were secretly stashed in Monte-Carlo's banks and villas

8
stages
~2 km
route
2h – 2h30
at your pace
🚶
walking

Monte-Carlo — Rainier's Counter-Offensive

🎭Your Mission

You are Jean-Charles Rey, private advisor to Prince Rainier III in 1956, arriving in Monaco-Ville the day after the royal wedding with Grace Kelly.

Your secret mission

Retrace Prince Rainier III's epic journey as he saved Monaco from bankruptcy by transforming Monte-Carlo into the world's glamour capital between 1949 and 1982.

Far more than an escape game

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.

🏛️
Hidden historical gems

At each stop, places ordinary guides miss — secret façades, sculpted crests, alleys steeped in history.

📜
Anecdotes & legends

Every riddle is rooted in a real historical fact or local legend. You leave with dozens of stories to tell.

🏗️
Architecture & heritage

Learn to read buildings — flamboyant Gothic, Baroque, Art Deco — like a real art historian, while having fun.

🚶‍♀️
Immersive wandering

Walk through the city like a novel's character — every alley becomes a stage, every square a theatre.

🎙️
Immersive audio narration

A voice walks with you at every step, tells the story of each place, reads clues, adds a cinematic feel.

📲
Yours forever

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?

🏛️
Outdoor escape game

Explore the city on foot solving puzzles based on real historical facts. No locked room — the city is your playground.

📱
On your smartphone

No app to download. Play directly from your browser. Guided step by step, at your own pace.

👨‍👩‍👧‍👦
Unlimited players

One purchase per phone is enough. Play with family, friends or as a couple — everyone participates.

🎯
Augmented reality

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.

🤖
AI that helps you

Stuck? Progressive personalised hints. The character repeats the puzzle on demand — at your own pace.

🗣️
32 languages

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

Monaco Oceanographic Museumoptional
€16. Spectacular aquarium with 6000 marine species and temporary exhibitions on Albert I's expeditions.
Optionnel
/pers.
Prince's Palace of Monacooptional
€10. State apartments and throne room where Rainier III received heads of state, open April to October.
Optionnel
/pers.
Lunch at Café de Parisoptional
€45. Legendary brasserie facing the Casino since 1868, seafood specialties and Casino square view.
Optionnel
/pers.
F1 Grand Prix Circuitoptional
Free. Walk the 3.337 km of the legendary circuit, from Sainte-Dévote to Portier corner.
Optionnel
/pers.
Budget if you do them all / pers.~0

The story that haunts this land

Monaco-Ville welcomes you to Place du Palais where Rainier III was enthroned on April 11, 1950, inheriting a principality on the brink of bankruptcy. The 26-year-old prince discovered depleted finances: Monte-Carlo Casino was losing money, wealthy tourists were deserting the Riviera for emerging Saint-Tropez. From the Rock's ramparts, you observe Port Hercule below, then a simple fishing port with 200 moorings that Rainier dreamed of transforming into a prestige marina. The Major Ramp, monumental staircase from 1714, leads you to the Oceanographic Museum inaugurated in 1910 by Albert I. This temple of marine science became under Rainier III a symbol of modernity, attracting 600,000 annual visitors by 1960.

Saint-Martin Gardens, terraced since 1816, offer a commanding view of Rainier's urban strategy. In 1959, the prince launched Operation Fontvieille: reclaiming 22 hectares from the sea to double Monaco's surface area. You descend toward Port Hercule, enlarged in 1971 with the new Rainier III basin 6 to 10 meters deep. This revolutionary marina can accommodate 700 yachts including some 175 meters long, transforming Monaco into the world capital of luxury yachting. Avenue d'Ostende, opened in the 1960s, now directly connects the port to Monte-Carlo district, bypassing the old maze of narrow streets.

Hôtel de Paris Monte-Carlo, Second Empire palace opened in 1864, became under Rainier the symbol of Monaco's renewal. In 1962, the prince received Winston Churchill there, who stayed in the Rose Salon decorated by Baccarat. The 182 rooms now welcomed Aristotle Onassis and Maria Callas in the 1950s-1960s, emblematic couple of the international jet set that Rainier attracted through his revolutionary tax policy. The absence of income tax, established in 1869 but relaunched by Rainier, made Monaco a legal tax haven that seduced European and American fortunes.

Monte-Carlo Opera House, Garnier Hall inaugurated January 5, 1879, was reborn under the impetus of Rainier and Grace Kelly. The American princess, former Hollywood star, transformed this 524-seat hall into an international cultural showcase. Restored for 100 million euros between 2017 and 2019, the opera preserves its frescoes by Gustave Doré and its 8 royal boxes where European crowned heads parade. The Casino Gardens, 7 hectares of exotic terraces designed by Joseph Comboul from 1864, became the theater of princely receptions that built Monte-Carlo's worldwide reputation.

Your mission ends before Monte-Carlo Casino, Charles Garnier's neo-baroque jewel saved by Rainier from decrepitude. Between 1950 and 1982, the prince transformed this 19th-century symbol into a 20th-century dream machine. The 107-meter facade with 28 Corinthian columns now attracts 300,000 annual visitors, generating revenues that financed Monaco's metamorphosis. You take away the keys to a unique urban revolution: how a 2 km² micro-state became in three decades the showcase of European luxury, laboratory of futuristic urbanism and legal tax haven admired worldwide.

1956
Rainier III and Grace Kelly's marriage brings crucial global visibility to Monaco.
1962
New Monegasque Constitution promulgated, strengthening the Prince's power.
1966
The Monegasque State issues new SBM shares, diluting Onassis's stake.

The Route

8 stages through the city

The gameplay: AR, camera, hidden clues

📱Search clues with your cameraRA

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.

8
original puzzles
24
min of narration
🪙 24
TripCoins granted
16
GPS waypoints

How does it work with a group?

One phone = one team. Pick the number at checkout (1 to 10).

🧍
1 phone

Solo, or a group sharing the screen. One team, one code.

👥
2-3 phones

Family, couple, or 2-3 teams competing. Each phone has its own code and its own score.

👨‍👩‍👧‍👦
4 to 10 phones

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.
🕒No date to pick · Code valid 1 year · Play whenever you want

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

Starting point
Palace Square, Monaco-Ville
Directions on Google Maps
🕐
Duration
2h – 2h30
At your own pace
👥
Players
Unlimited
From age 14
📍
Distance
~2 km
The Rock and Monte-Carlo
Accessibility
Full
Mostly flat route
🌐
Languages
17 languages
Built-in translation

Why this route?

🛡️

Defense of Sovereignty

Follow the journey of Prince Rainier III as he fights to regain control of his country against powerful foreign interests.

📝

Diplomatic Intrigue

Uncover the political maneuvers and legislative strategies used to outwit a formidable adversary.

🛥️

Modern Vision

Explore the places that embody Monaco's renewal under the impetus of Rainier III, far from gambling clichés.

Patience is a virtue and perseverance is a key.

A Prince's Victory

★ Innovation 2026

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

Soyez le premier à partager votre expérience.

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Your turn to play

Retrace Prince Rainier III's epic journey as he saved Monaco from bankruptcy by transforming Monte-Carlo into the world's glamour capital between 1949 and 1982.

12€
1 phone
23€
2 phones
33€
3 phones
42€
4 phones
50€
5 phones
56€
6 phones
62€
7 phones
68€
8 phones
74€
9 phones
80€
10 phones

1 purchase = 1 phone. Play several on the same device.

🕒No date to pick · Code valid 1 year · Play whenever you want
Get my code · 12€

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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