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Uncover the forbidden heresy concealed by Melk Abbey's monks. Decode clues across the town's sacred sites to expose the banished monk's dangerous truth before it vanishes forever.
📱 1 to 10 phones · 1 team per phone · Independent codes
In the shadow of Melk Abbey's golden Baroque splendor, a dark secret festers
You are Gerard von Melk, the esteemed abbey abbot, in the year 1120, tasked with investigating dissident writings recently discovered in the monastic library.
Your mission is to traverse
Follow the trail of a Benedictine heresy that nearly shook Melk Abbey in the 13th century, between medieval ramparts and monastic secrets.
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
From Melk's Danube wharf (Melk Ship Wharf), you contemplate the Benedictine Abbey that has dominated the Wachau valley since 1089. Founded by Léonhard von Vels, prince-bishop, this abbey quickly became a major intellectual center of the Empire. But around 1120, Abbot Gerard von Melk discovered suspicious manuscripts in the library: some monks questioned papal authority and advocated a return to primitive Christian sources. These heretical writings secretly circulated between cells, threatening Benedictine orthodoxy. Your mission begins here, facing this UNESCO abbey that still hides traces of this 12th-century spiritual dissidence.
Melk's medieval ramparts (Stadtmauer), built in the 13th century over 500 meters, witness the troubles that stirred the region. These fortifications protected not only against Hungarian invasions, but also against internal religious tensions. The watchtowers restored in the 20th century monitored suspicious comings and goings toward the abbey. Behind these walls, dissident monks organized their nocturnal meetings, exchanging forbidden translations of patristic texts. Every stone of these ramparts witnessed the interrogations led by Abbot Gerard to identify the leaders of this nascent heresy that threatened the established order in Lower Austria.
The monastic school (Stiftsgymnasium Melk), founded in 1707 by the Benedictines, perpetuates a millennial educational tradition on this site. But in the 12th century, this was where the scriptorium stood where monks copied sacred manuscripts. Gerard von Melk discovered suspicious marginal annotations in copies of Saint Augustine and Saint Jerome: some scribes added their own interpretations, contesting ecclesiastical hierarchy. This historical library of 500 volumes still hides traces of these doctrinal modifications that nearly divided the monastic community. Education under abbatial patronage became a crucial issue for preserving Benedictine orthodoxy.
The Pfarrkirche Mariä Himmelfahrt, built between 1432 and 1460 on 12th-century foundations, replaces a Romanesque church where suspicious services took place. Its 62-meter Gothic tower rises at the exact spot where Abbot Gerard interrogated the faithful about their religious practices. The baroque interior renovated in the 18th century masks original frescoes that bore ambiguous symbols, mixing orthodox Christianity with Eastern influences brought by pilgrims from the Holy Land. The main altar of 1760 covers the ancient sanctuary where heretical monks celebrated a modified liturgy, defying Rome's authority and advocating more direct spirituality.
Your investigation concludes on Hauptplatz, Melk's nerve center since the Middle Ages, where Gerard von Melk publicly summoned suspect monks. This 2,000 m² square, bordered by Renaissance houses from the 16th-18th centuries, witnessed the ecclesiastical trial that ended the Benedictine heresy. Saint Coloman's fountain (Kolomanibrunnen), erected in 1735, commemorates the patron saint of travelers who protected the abbey from internal divisions. From the ramparts' observation tower (Aussichtsturm), restored in 2005, you survey this historic Melk where monastic orthodoxy finally triumphed over heretical temptations. This Wachau valley city preserves the memory of these 900 years of Benedictine faith, between conformity and spiritual questioning.
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 unspoken and hidden truths behind the walls of medieval abbeys.
Decipher ancient messages and esoteric symbols left by a rebellious monk.
Explore the tensions between dogma and free thought that marked the Middle Ages.
Dare to challenge the dogmas of the past.
Truth is often hidden where you least expect it.
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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Follow the trail of a Benedictine heresy that nearly shook Melk Abbey in the 13th century, between medieval ramparts and monastic secrets.
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.
14€. Découvrez les salles d'apparat où séjournaient les Habsbourg lors de leurs voyages sur le Danube, avec la bibliothèque baroque de 80 000 volumes.
8€. Collection unique de maquettes de bateaux à vapeur du XIXe siècle qui reliaient Vienne à Budapest, dans l'ancienne capitainerie du port.
25€. Dégustation de 5 crus locaux Grüner Veltliner et Riesling dans les caves voûtées du XVIe siècle, avec vue sur les vignobles en terrasses.
18€. Navigation de 45 minutes vers les ruines du château où Richard Cœur de Lion fut emprisonné, à travers les paysages classés UNESCO.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.