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Unravel the 1889 Mayerling conspiracy: was Crown Prince Rudolf's death with Mary Vetsera a lovers' suicide or a royal cover-up? Decipher clues across the estate to expose the truth.
📱 1 to 10 phones · 1 team per phone · Independent codes
In the shadowed halls of the Mayerling Hunting Lodge, Crown Prince Rudolf, heir to the Habsburg throne, met his tragic end on January 30, 1889
You are an Imperial Investigator, secretly commissioned by Emperor Franz Joseph I in 1889 to reconstruct his son's final hours.
You arrive at the Carmelite convent of Mayerling, built on
Uncover the mystery of the double suicide that shook the Austro-Hungarian Empire in 1889, following the trail of Archduke Rudolf and Marie Vetsera in Mayerling.
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
The Carmelite convent of Mayerling occupies the exact location of the hunting lodge where Archduke Rudolf, heir to the Austro-Hungarian Empire, took his life with his mistress Marie Vetsera on January 30, 1889. Franz Joseph I had the building destroyed and erected this expiatory chapel in 1900, entrusted to the Carmelites since 1955. You begin your investigation where everything ended, in this place of contemplation that still hides the secrets of a night that changed European history.
The Cistercian abbey of Heiligenkreuz, founded in 1133 by Margrave Leopold III of Styria, becomes the scene of your next investigations. This abbey, one of the oldest in Europe still active, has housed Marie Vetsera's tomb since 1951. Its abbey church, built between 1187 and 1230, blends Romanesque and Gothic architecture. The Cistercian monks who have lived here for nine centuries keep the memory of this 17-year-old baroness, buried here in utmost secrecy after the Mayerling drama.
The cemetery of Heiligenkreuz, surrounded by medieval walls from the 13th century, reveals the anonymous grave of Marie Vetsera, transferred here in 1951. Initially buried in a secret location, her tomb was only identified after decades of mystery. You wander among the tombs of Cistercian monks, some dating from the 12th century, to discover the commemorative inscription that finally marks the rest of she who shared the archduke heir's final moments.
The parish of Heiligenkreuz, with its 18th-century buildings, completes your journey through this village witness to the imperial drama. Located in immediate proximity to the abbey, it has perpetuated the religious services of the local community for centuries. Here Austrian daily life mingles with the memory of this tragedy that shook all of Europe, revealing the cracks in an empire already wavering at the dawn of the 20th century.
Your investigation in Lower Austria reveals how an imperial news item became the symbol of the end of a world. Between Mayerling's expiatory convent and Heiligenkreuz's secret tomb, you have retraced the final steps of two lovers whose death precipitated the fall of the Habsburgs. This 1.5 km walk through history leaves you facing one of the most troubling enigmas of the Austro-Hungarian monarchy, where politics and passion merge in a drama with European repercussions.
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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Reconstruct the story of a secret notebook and unravel the mysteries of the imperial court.
At the very scene of the drama, explore the facts and rumors of the Mayerling scandal.
Discover the concealment strategies implemented by the Habsburgs after the tragedy.
Silence is golden, but truth is eternal.
Decipher Mayerling's secret notebook.
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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Uncover the mystery of the double suicide that shook the Austro-Hungarian Empire in 1889, following the trail of Archduke Rudolf and Marie Vetsera in Mayerling.
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.
8€. Collection d'art sacré cistercien et manuscrits médiévaux dans l'une des plus anciennes abbayes d'Europe.
12€. Résidence d'été impériale où François-Joseph séjourna après le drame de Mayerling.
15€. Vins locaux et spécialités dans une taverne traditionnelle de Gumpoldskirchen, village viticole proche.
Gratuit. Sentiers forestiers dans la forêt viennoise où chassait l'archiduc Rodolphe, départ depuis Mayerling.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.