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Decipher coded messages left by Ethan Allen's militia to uncover the hidden plot that sparked Vermont's fight for independence from New York.
📱 1 to 10 phones · 1 team per phone · Independent codes
In 1770s Burlington, Ethan Allen and his Green Mountain Boys operated in the shadows, orchestrating a rebellion that would reshape a nation
You are a Loyalist scout on an infiltration mission in Burlington, Vermont, in 1787.
Your objective: thwart the plans of the Allen brothers and their Green Mountain Boys, whose influence threatens
Unravel the secret rebellion of the Green Mountain Boys in Burlington, following in the footsteps of Ethan and Ira Allen, founders of Vermont.
Your journey begins at Battery Park, a strategic defensive site during the American Revolutionary War, whose War of 1812 cannons overlook Lake Champlain. It was here that Ethan Allen's Green Mountain Boys might have planned their movements. The park, adjacent to the Burlington Boathouse and part of the Lake Champlain waterfront trail, was an ideal vantage point to monitor activities near Fort Ticonderoga. You will search for the first clues here, hidden near the remnants of this historic Vermont battery.
As you head towards Burlington City Hall, you traverse an urban landscape that has witnessed the city's evolution. Burlington City Hall, built in 1928 in a Renaissance Revival style, with its 185-foot clock tower, overlooks City Hall Park, a public green space since the 19th century. This building, which has housed city government since its opening and survived a fire in 1975, represents the continuity of local administration, a contrast to the tumultuous beginnings of Vermont's founding by Ira Allen and his contemporaries. Here you will decipher coded messages related to the city's early assemblies.
Church Street Marketplace, a pedestrian-only shopping district established in 1981, immerses you in the vibrancy of modern Burlington, while retaining its historic soul. Its 19th-century buildings, with their Greek Revival architecture, attest to the street's development since 1865. It is a central location for annual festivals and Burlington's social life. Although more recent, this lively crossroads is a point of convergence, much like the Green Mountain Boys converged for their gatherings. You will search for hidden symbols in the architectural details, revealing messages concealed by supporters of the rebellion.
Your quest will then lead you to the Ira Allen Chapel on the University of Vermont campus. Built between 1890 and 1891 in a Gothic Revival style, this chapel is named in honor of Ira Allen (1751-1815), Ethan Allen's brother and co-founder of UVM. Its stained glass windows and 48-bell carillon, installed in 1925, resonate with the legacy of these key figures in Vermont history. Main Street Landing, a maritime complex developed between 1983 and 1990 on a former industrial site, with its 200-slip marina and performing arts center on Lake Champlain, is near Battery Park, part of the 1.5 km waterfront path. These sites illustrate Burlington's evolution, from the colonial aspirations of the Allen brothers to its contemporary development.
Finally, your journey culminates at the Ethan Allen Homestead Museum, Ethan Allen's home (1738-1789) built around 1787 and preserved as a museum since 1939. Located 2 miles from Battery Park, this site, with its Federal-style architecture and period furnishings, documents the history of the Green Mountain Boys and offers insight into the life of this revolutionary leader. By visiting this site listed on the National Register of Historic Places, you will have deciphered the strategy of the Green Mountain Boys and understood the importance of Burlington and the Lake Champlain Waterfront in the American Revolution. This walking thematic circuit will have offered you a unique perspective on Vermont's heritage and Burlington's history with your family.
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.
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
Assemble the fragments of a secret plan for independence.
Immerse yourselves in the armed resistance and bravery of the Green Mountain Boys.
Untangle the threads of a complex and audacious political plot.
Liberty is won by daring.
Unveil the strategy of the Green Mountain Boys.
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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Unravel the secret rebellion of the Green Mountain Boys in Burlington, following in the footsteps of Ethan and Ira Allen, founders of Vermont.
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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Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.
10-12$. Explorez la maison d'Ethan Allen, construite vers 1787, et découvrez l'histoire des Green Mountain Boys à travers des expositions authentiques et des meubles d'époque.

Accès libre. Admirez l'architecture Gothic Revival de la chapelle, nommée en l'honneur du cofondateur de l'UVM, Ira Allen, et ses vitraux colorés.
Prix variables. Profitez d'une vue imprenable sur le Lake Champlain tout en savourant des bières artisanales locales, un classique de la scène brassicole de Burlington.
Gratuit. Suivez le sentier de 1,5 km le long du lac, reliant plusieurs sites historiques et offrant des vues panoramiques sur l'eau et les montagnes du Vermont.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.