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In 1871, exiled Victor Hugo hid a secret message in Vianden's stones amid political turmoil. Decipher his coded clues across landmarks to uncover his final republican manifesto before it's lost forever.
📱 1 to 10 phones · 1 team per phone · Independent codes
Spring 1871: France bleeds from war and the crushed Commune uprising
You are a young apprentice historian in Vianden, autumn 1871.
Your mission: uncover the hidden message the writer Victor Hugo left during his exile here. Joseph Porz,
Delve into Vianden's cobbled streets, where Victor Hugo's echoes still resonate, inviting you to decipher his ultimate secret.
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
« Vianden is a jewel, a diamond cut into the mountain. »— Victor Hugo, Letter to Paul Meurice, August 19, 1871
Your quest for Victor Hugo's hidden message begins in front of Vianden Castle, a national monument classified in 1995. Built in the 11th century and home to the Counts of Vianden until the 14th century, its main towers reach approximately 40 meters, covering an area of 4 hectares. It was here, in this medieval setting restored between 1970 and 1980 by the Société de Rénovation du Château de Vianden, that Hugo found inspiration in 1871, mentioning it in his writings on Luxembourg. This historic site in Vianden offers you a first glimpse into the atmosphere that so captivated the writer.
Continue your visit of Vianden towards the Our Bridge, an 18th-century (1760) stone bridge stretching 120 meters and once connecting Vianden to Germany. Classified as a historic monument in 1980, its segmental arches rise up to 15 meters above water level. This emblematic crossing point, located 500 meters from the castle, is a key part of the town's river route. Victor Hugo, who praised Vianden as 'the pearl of Luxembourg,' certainly admired this architectural feat while crossing the Our river, perhaps leaving a subtle clue on its banks.
The Victor Hugo Museum, located on Rue Victor Hugo, is your next crucial step in deciphering the message. This house, where Hugo resided temporarily during his exile in 1871, was converted into a museum in 1935. It houses original manuscripts and editions by Hugo from that period, where he wrote letters and poems. Open to the public since 1937, the museum welcomed over 10,000 annual visitors pre-pandemic, testifying to the importance of this literary site. The town of Vianden thus celebrates the writer's legacy, and the museum is an unmissable location for fans of Diekirch heritage.
Your exploration of Vianden's heritage then leads you to the Trinitarian Church, built in 1248 by the Trinitarian Order to ransom Christian captives. This Gothic-style building, with its single nave 25 meters long and a bell tower 35 meters high, is a testament to the town's religious history. Its interior, adorned with 15th-century frescoes restored in 1960, has been used as a parish church since the French Revolution. Near Vianden's Town Hall, built in 1660 in the Mosan Renaissance style, this site offers a different perspective on Vianden's history, a town rich in Diekirch monuments.
Finally, your thematic circuit takes you to the Statue of Victor Hugo, erected in 1936 on Place Victor Hugo, the work of Luxembourgish sculptor Joseph Porz. This 2.5-meter bronze statue on a granite pedestal was inaugurated to commemorate the 50th anniversary of Hugo's death (1885-1936). Positioned 800 meters from the castle, facing the house-museum, it embodies Vianden's recognition of the writer. As Joseph Porz, you have not only created this work, but you also hold the key to understanding why this monument, as well as the Vianden Ramparts (13th-century medieval remains restored in 1975), are essential elements of Hugo's secret. This GPS scavenger hunt in Vianden will have introduced you to the history of Vianden and its intimate connection with a literary giant, strengthening the candidacy of the medieval village Luxembourg Ardennes for UNESCO heritage 2022.
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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Immerse yourself in the world of secret writing by one of France's greatest exiled authors.
Explore the surroundings of the majestic Vianden Castle, which offered protection and inspiration to Victor Hugo.
Unravel the clues left by the poet to reconstruct a crucial political text, hidden from all eyes.
Exile Will Not Silence the Poet's Voice
Unravel the coded message Victor Hugo left behind, within the walls of his Luxembourgish refuge.
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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Delve into Vianden's cobbled streets, where Victor Hugo's echoes still resonate, inviting you to decipher his ultimate secret.
1 purchase = 1 phone. Play several on the same device.
No calendar booking. Code sent immediately by email.
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More destinations, tours & urban treasure hunts across the country
Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.
10€. Explorez les salles médiévales et les tours de ce monument national, résidence des comtes de Vianden jusqu'au XIVe siècle, qui a tant inspiré Victor Hugo.
5€. Découvrez les manuscrits originaux et les éditions de l'écrivain, rédigés lors de son exil de 1871 dans cette maison transformée en musée depuis 1935.
25-40€. Savourez des spécialités locales comme le Judd mat Gaardebounen, un plat traditionnel qui aurait pu être dégusté par les habitants de Vianden au XIXe siècle.
Gratuit. Parcourez les fortifications médiévales du XIIIe siècle, restaurées en 1975, et profitez d'un sentier pédestre de 1,5 km offrant des vues sur le village médiéval Luxembourg Ardennes.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.