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As Franco-American forces close in during the 1781 siege, a British spy's encrypted dispatch reveals Cornwallis's desperate escape plan. Decode it at key battlefield sites before the secret vanishes forever.
📱 1 to 10 phones · 1 team per phone · Independent codes
October 1781, Yorktown Battlefield
You are a Continental Army cryptographer, deep within Washington's lines at Yorktown, October 1781.
The noose tightens around Lord Cornwallis's trapped army as Washington
Noose Tightens: Thwart Britain's Last Attempt at Yorktown
« The history of the American Revolution was that of a continental war, not a partisan war. »— George Washington, letter to Benjamin Harrison, 1781
In September 1781, British forces under General Lord Cornwallis found themselves trapped in Yorktown, Virginia. The French fleet under Admiral de Grasse blockaded sea access, while the combined armies of George Washington and Comte de Rochambeau encircled them by land. After weeks of intense siege and bombardment, the British situation became untenable. Escape and resupply attempts were repelled, and defensive lines crumbled under pressure.
On October 19, 1781, cornered, Lord Cornwallis was forced to request surrender. This was a decisive moment in the American Revolutionary War, marking the end of major hostilities and paving the way for the Treaty of Paris in 1783. The victory at Yorktown was not just a military feat; it was the result of unprecedented Franco-American strategic collaboration, symbolizing the alliance that forged a new nation.
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.
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.
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.
Ready to live this adventure?
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Decipher codes and hidden correspondences
Understand military tactics of a bygone era
Dive into the world of espionage during the Revolution
History is written by details
Every digit counts for victory.
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.
Same spirit: search, deduce, find. But here the "treasure" is a full story to piece together in eight stops. Each stop gives you a fragment of the final code. Eight fragments later, you've cracked it.
Yes — your code stays active and progress is saved. You can start Saturday afternoon, finish Sunday morning. Some players actually prefer this format to make the most of a full weekend on site.
Yes, from age 6 with an adult reading puzzles aloud, and from age 12 on their own. Kids love the "find the camera clue" part — it's very visual, gets them genuinely involved.
Three hint levels per puzzle, with a small increasing time penalty. If truly stuck after level 3, you can skip the step (45-min penalty). The point: nobody stays blocked and goes home frustrated.
Soyez le premier à partager votre expérience.
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Decipher the fate of the American Revolution. The journal awaits your sagacity.
1 purchase = 1 phone. Play several on the same device.
No calendar booking. Code sent immediately by email.
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Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.

Visitez la maison où les termes de la capitulation furent négociés. Imprégnez-vous de l'atmosphère des discussions diplomatiques entre les belligérants, un lieu clé de l'acte 4.
Pour approfondir l'histoire du siège, découvrez les expositions interactives sur la vie des soldats, l'espionnage et les stratégies militaires franco-américaines qui ont mené à la victoire.
Explorez la maison qui servit de quartier général à Lord Cornwallis. Observez l'architecture et les intérieurs qui témoignent de la vie et des décisions du général britannique durant le siège.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.