The Prisoner of If
Dumas didn't invent everything
📱 1 to 10 phones · 1 team per phone · Independent codes
In his cell at the Château d'If, Edmond Dantès counted the days. But Dumas' novel draws on very real prisoners — men who carved their despair into stone. Barbary corsairs prowled offshore. Marseille kept its secrets behind its walls. Even today, the walls of the Château d'If speak to those who know how to listen.
The walls of Château d'If have never released all their prisoners
When the ferry leaves the Old Port and the silhouette of Château d'If looms larger on its rocky islet, a shiver runs through even the most seasoned traveler. This fortress, built by François I to protect Marseille, became France's most famous prison thanks to Alexandre Dumas. But before Monte Cristo, real prisoners rotted between these walls — Protestants after the revocation of the Edict of Nantes, republicans under the July Monarchy, and even a rhinoceros gifted to the king. Your escape begins where Dantès's ended.
« "Wait and hope!" »— — Alexandre Dumas, The Count of Monte Cristo, 1844
Château d'If — from royal fortress to Monte Cristo's prison
In 1516, François I visited Marseille and grasped the strategic importance of the islet of If, two kilometers from the Old Port. He ordered the construction of a fortress to protect the harbor from Barbary corsair attacks and the Spanish fleet of Charles V. The Château d'If was completed in 1531, with its three round towers and walls three meters thick.
But the fortress quickly became a state prison. Its cells held political prisoners, Protestants after the revocation of the Edict of Nantes in 1685, and republicans in the 19th century. Conditions varied according to the inmates' wealth: the rich occupied cells with fireplaces and sea views, while the poor rotted in dark ground-floor dungeons.
In 1844, Alexandre Dumas published "The Count of Monte Cristo," whose hero Edmond Dantès is imprisoned in the Château d'If for fourteen years before escaping in the burial sack of the Abbé Faria. The novel was such a success that guards carved a passage between the cells "of Dantès" and "of Faria" to satisfy tourists. Today, the Château d'If is Marseille's most visited monument — proof that fiction is sometimes more powerful than history.
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
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 escape
Take the ferry to Château d'If and explore the most famous prison in French literature.
Fiction & reality
Separate fact from fiction between Dumas' novel and the real history of If's prisoners.
Barbary corsairs
Relive the era when North African corsairs terrorized the coast of Provence.
Bonne Mère
Climb to Notre-Dame-de-la-Garde, the golden sentinel watching over the Phocaean city.
Le Panier: 2,600 years
Lose yourself in Marseille's oldest quarter, continuously inhabited since the Greeks.
Wait and hope.
From the Old Port to Château d'If, live literature's most famous escape.
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
Q01Concretely, how does it unfold outdoors?
You arrive in Marseille · Château d'If, Old Port & Le Panier, open the link on your phone, the story starts. It's the modern outdoor escape game: audio narration, camera puzzles, final code unlocked as a team. No install. No need to book a time slot.
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.
Q03Is The Prisoner of If good for a hen / stag party?
Great fit: no costume required, the team really collaborates (it's not a linear path), and the final code earns you a souvenir photo. Pick a calm time slot — early afternoon usually.
Q04Best season to explore Marseille · Château d'If, Old Port & Le Panier like this?
Spring and autumn are the best seasons: mild temperatures, fewer tourists, gorgeous light. Summer is also great but go for early morning before 11 or late afternoon. Winter is perfectly playable, especially in southern cities — Marseille · Château d'If, Old Port & Le Panier often feels more authentic then.
Avis des aventuriers
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Your turn to play
Board at the Old Port, explore the cells of Château d'If, climb to the Bonne Mère, and lose yourself in Le Panier — an epic escape game across 2,600 years of Marseille history, in the footsteps of Monte Cristo and the Barbary corsairs.
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
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