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Decipher the hidden secrets of Liechtenstein's founding. A forgotten register holds the truth behind the principality's shadowy origins—uncover the conspiracy before it's erased forever.
📱 1 to 10 phones · 1 team per phone · Independent codes
In 1719, two small lordships merged to form the Principality of Liechtenstein—but the official records tell only half the story
You are a trusted Royal Archivist, summoned to Vaduz by His Serene Highness in the present day, to recover a vital document.
Your urgent mission: locate "The Forgotten Register," a historical
Delve into the secret archives of Vaduz, where a forgotten register from centuries past holds the key to Liechtenstein's identity.
« Liechtenstein is a sovereign, independent and indivisible state, whose sovereignty emanates from the people and the Prince. »— Constitution of the Principality of Liechtenstein, Article 2, October 5, 1921
Your quest for the Forgotten Register begins at Peter-Kaiser-Platz, the nerve center of Vaduz. It is here, facing the Regierungsgebäude, that decisions shaping Liechtenstein since its foundation in 1719 have been made. The government building, erected between 1903 and 1905, embodies the continuity of the state. By searching the surroundings, you understand that the register might have been moved during a major administrative restructuring in the early 20th century, a period of great modernization for the principality. The square itself, named in honor of Peter Kaiser, a 19th-century Liechtenstein political figure, is a first clue to the importance of archives in public life.
Continue your investigation towards the Landtagsgebäude, Liechtenstein's parliament, inaugurated in 2008. This modern building, all glass and steel, contrasts with Vaduz's older architecture but houses the country's democratic heart. Examining parliamentary archives, even digital ones, could reveal mentions of the missing register. You discover that many historical documents were digitized around the turn of the 21st century, which could have led to misfiling or oversight of some originals. The Landtagsgebäude, though recent, is the guardian of the laws and debates that have framed the lives of the people, and thus, potentially, the existence of your precious document.
Your path then leads you to St. Florin Cathedral, a Neo-Gothic edifice consecrated in 1873. Parish registers were once primary sources of information on the population and local events before modern civil registration. Such a register might contain annotations concerning land transactions or inheritances related to princely families, details that could have been recorded in the Forgotten Register. The very architecture of the cathedral, the work of Austrian architect Friedrich von Schmidt, attests to the cultural and religious influences that have crossed Vaduz and Liechtenstein, highlighting the complexity of potential archival sources.
LGT Bank, one of the world's largest private banks, represents a crucial step. If the register contains heritage information, it is possible that it was kept in vaults or private archives. The Princely Family of Liechtenstein also owns this institution, strengthening the link. By studying banking and asset preservation practices dating back to the 18th or 19th century, you imagine how a document of such importance could have been entrusted to a financial entity for its security. This site illustrates the convergence between financial power and dynastic history that characterizes Vaduz.
Finally, your journey takes you to the Liechtensteinisches Landesmuseum, the national museum, and then to the majestic Schloss Vaduz. The museum, with its vast collections, is the official custodian of the country's history and culture. It is the most likely place to find any trace of the Forgotten Register, whether it's a reference in an old inventory or the document itself, misidentified. Schloss Vaduz, the princely residence since 1938, overlooks the city and symbolizes the continuity of the dynasty. It is in these places that you piece together the final clues, understanding that the Forgotten Register is not just a document, but the living testament to the identity and sovereignty of a discreet yet resilient nation, forged over centuries in the heart of the Alps.
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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Follow the clues to reconstruct an original register of foundations, a witness to the beginnings of the tax haven.
Decipher hidden messages in the facades of Vaduz's financial and political institutions.
Uncover the mechanisms of financial discretion that made Liechtenstein world-renowned.
Discretion is the mother of fortune.
Ancient Liechtenstein proverb
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.
Neither. Everything plays in your browser (Safari, Chrome) after you tap your activation link. No PDF to print, no download. The trail lives in your phone, that's it.
Usually 2 to 4 km of total walking, within 1.5 km as the crow flies from the start point. The route is designed to be walkable at a relaxed pace, no public transport needed.
Great two-person format. Narration is dramatic without overdoing it, puzzles are designed to spark conversation. Ideal for new relationships or anniversaries — you discover the city and coordinate on puzzles simultaneously.
Intermittent 4G is plenty. Maps are cached at startup. Narration and clues load per stop, so a so-so signal between stops is fine. GPS itself uses no data.
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Delve into the secret archives of Vaduz, where a forgotten register from centuries past holds the key to Liechtenstein's identity.
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
More ideas for self-guided walking tours, scavenger hunts & city quests in the same city

Uncover the chilling fate of a Nazi regiment that marched into Vaduz during WWII, never to return intact. Decode hidden clues at monuments and stolpersteine to solve why they vanished without a trace.

Decipher the encrypted diplomatic cables hidden across Vaduz to expose the true cost of Liechtenstein's neutrality during WWII and uncover a secret pact that shaped the principality's fate.

Uncover the hidden Vermeer stolen from the Princely Collections. Decode clues across Vaduz's landmarks to expose a centuries-old art heist before it's lost forever.
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.
À partir de 10 CHF. Goûtez les vins primés du domaine princier, notamment le Pinot Noir et le Chardonnay, directement dans les caves de Vaduz.
12 CHF. Explorez l'histoire naturelle, culturelle et artistique du Liechtenstein, des découvertes archéologiques aux trésors princiers.
15 CHF. Admirez une collection d'art moderne et contemporain d'envergure internationale, avec des œuvres du XIXe siècle à nos jours.
8 CHF. Découvrez les insignes princiers, les cadeaux d'État et des objets d'art précieux dans ce petit musée au cœur de Vaduz.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.