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Uncover the hidden truth behind the 1420 siege of Bonifacio. Decode clues from the King of Aragon's Staircase to expose the secret betrayal that doomed his secret invasion force.
📱 1 to 10 phones · 1 team per phone · Independent codes
In 1420, King Alfonso V of Aragon launched a daring siege on Bonifacio, aiming to conquer this strategic Corsican stronghold
You are a Genoese intelligence agent, undercover in Bonifacio under siege by Alfonso V of Aragon in 1420.
Your mission: discover who among the defenders is preparing to betray the
Uncover the secrets of Corsica's most daring siege: 189 steps carved into the cliff, a stubborn King of Aragon, and Bonifacio's heroic resistance in 1420.
Bonifacio awakens under your steps at the Porta di Genova, built in the 13th century by the masters of the maritime Republic. This main entrance to the citadel saw the passage of Alfonso V of Aragon's soldiers in September 1420, when the king undertook the conquest of Corsica to extend his Mediterranean empire. Behind these ancient stones, the Bonifacians prepared to resist for five months one of the most fierce sieges in their history. Your investigation begins here, where Aragonese spies attempted to corrupt Genoese sentries.
The Bastion de l'Étendard reveals its military secrets in the 14th-century underground chambers. This Genoese fortification served as headquarters for the defenders during the 1420 siege, sheltering meetings between loyalists and the presumed conspirators you're tracking. The thick walls heard resistance plans when Aragonese bombardments rained on the citadel. Here alliances were forged and perhaps the betrayals that could have delivered Bonifacio to the enemy were plotted.
The church of Sainte-Marie-Majeure, erected between 1270 and 1320, becomes the theater of your gravest suspicions. In this Genoese-style nave, less than 500 meters from the Porta di Genova, inhabitants secretly gathered during the siege. The vaults echoed with prayers for deliverance, but also with suspicious whispers from those secretly negotiating with the besiegers. Each pillar perhaps hides a cache, each confession an admission of treason.
The King of Aragon Staircase reveals its most troubling mystery: its 189 steps carved into the limestone cliff led to the Saint-Barthélemy spring, vital stake of the siege. Contrary to the legend claiming Alfonso V's soldiers dug it in one night, this access existed well before 1420. Did the Aragonese know this secret passage thanks to a Bonifacian traitor? The 65-meter descent at 45° slope plunges you into the heart of the enigma: how did the enemy discover this freshwater supply route?
Bonifacio's port closes your investigation where the Aragonese fleet anchored its 130 ships in 1420. From these waters departed the maritime assaults against the citadel, and here in 1421 appeared the Genoese relief fleet that definitively broke the siege. Your investigation reveals the Corsican soul: fierce resistance where even women and children defended their ramparts. You leave with the certainty that Bonifacio never yielded, and that its war secrets still sleep in the citadel's stones.
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. »
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.
Places tied to your adventure — optional entries, totally up to you · per person
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.
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.
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Dive into the heart of the battles that shaped Bonifacio's history, including the famous Aragonese siege of 1420.
Explore the citadel clinging to the white cliffs, a masterpiece of natural and human defense.
Decipher the clues left by an Aragonese agent to uncover an age-old secret.
Uncover the secret of a citadel besieged by history.
Bonifacio, 1420.
OddballTrip combines gamified play, augmented reality and AI. All our competitors deliver 1 or 2 of these angles. We deliver all 5.
A golden chest floats in front of the monument. Tap → opening animation → reveals a secret message.
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.
At the puzzle climax, golden letters magically write themselves on the real wall — that's the puzzle answer. An unforgettable visual effect.
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.
A mini-radar shows the target even behind you, and the phone vibrates when you aim in the right direction.
Every puzzle weaves in real historical facts (architecture, era, anecdotes). You learn by playing — like a gamified audioguide.
3 levels of AI-generated help: vibe → where to look → answer format. You're never stuck.
At the end of the game, capture a selfie with OddballTrip banner + mascot, shareable on Instagram, TikTok.
PWA technology: open the link, it plays in your browser. Same quality as an app, no App Store hassle.
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.
GPS yes (handled by your phone). Maps yes (tiles cached). AI and hints need an intermittent 4G connection.
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.
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).
From 12 without an adult, from 6 with an adult reading puzzles. Works for families, couples, friend groups, companies.
Pre-register or contact us — we'll email you as soon as your city is live.
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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Uncover the secrets of Corsica's most daring siege: 189 steps carved into the cliff, a stubborn King of Aragon, and Bonifacio's heroic resistance in 1420.
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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Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.
25€. Excursion en bateau sous les falaises calcaires où se cachaient les navires génois pendant les sièges.
15€. Charcuterie corse traditionnelle dans une cave voûtée du quartier historique, accompagnée de vin de Patrimonio.
Gratuit. Randonnée de 2h au point le plus méridional de Corse continentale, vue sur la Sardaigne et les Bouches de Bonifacio.

8€. Collections sur l'histoire génoise et les sièges de la citadelle, avec maquettes des fortifications médiévales.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.