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Uncover the daring 1945 escape plan hidden in the stones of Mauthausen. Decipher clues from the quarry's 'Stairs of Death' to the secret tunnels and expose the path to freedom before it's lost forever.
📱 1 to 10 phones · 1 team per phone · Independent codes
In the shadow of the Wiener Graben quarry at Mauthausen concentration camp, a group of prisoners forged an audacious plan for freedom in early 1945
You are an archivist with the 11th Armored Division, arriving at Mauthausen on May 5, 1945.
Your mission: document the horror discovered
Walk in the shadow of the 186 steps of the Stairs of Death, where over 100,000 detainees perished between 1938 and 1945 in the Mauthausen concentration camp network.
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 Mauthausen Memorial welcomes you at the main entrance of what was one of the deadliest concentration camps of the Reich. Built on orders from August Eigruber, Gauleiter of Upper Austria, the camp opened on August 8, 1938 with the transfer of 300 prisoners from Dachau, mainly Austrians classified as repeat offenders or asocials. Heinrich Himmler, Reichsführer SS, ordered the expansion of this network from 1938, which would extend to Gusen. The memorial's permanent exhibitions trace the seven years of the camp's existence, where 200,000 detainees were interned under extremely brutal conditions.
The Quarry Path leads you to the heart of the Nazi concentration economy: granite exploitation by Deutsche Erd- und Steinwerke GmbH (DESt). From late April 1938, this SS enterprise used forced prisoner labor to extract stone from the Wiener Graben quarry, located immediately adjacent to the main camp. This path, traveled daily by detainees, testifies to the extermination through work system established by Franz Ziereis, camp commander from 1939 to 1945. Working conditions in this quarry were so extreme that Mauthausen was classified as a Level III camp, reserved for prisoners considered irredeemable.
The Mauthausen quarry reveals the scale of industrial exploitation of death. Carved into the limestone rock of the Danube heights, 180 km west of Vienna and 20 km east of Linz, it served as the main forced labor site for detainees. The extracted granite blocks served the Reich's grand architectural projects, while prisoners suffered extreme violence documented by SS photographs taken between 1942 and 1944. This quarry, scene of thousands of deaths by exhaustion, illustrates the economic logic underlying the Nazi concentration system.
The Stairs of Death, composed of 186 steps carved into the rock, constitutes Mauthausen's most striking symbol. Used from 1938 for forced transport of granite blocks, these stairs were the scene of disguised executions: SS guards deliberately pushed overloaded prisoners, causing fatal falls. Archival photographs show detainees carrying stones under inhuman conditions, testifying to this method of extermination through work. Each step carved in stone recalls the thousands of lives broken on this path of suffering, now a place of memory and remembrance.
Your journey through Mauthausen concludes with the discovery of the killing installations: the gas chamber built in autumn 1941 and operational from March 1942, the crematorium installed in winter 1941, the bunker serving as punishment cells, and the Appellplatz where daily roll calls took place. These remains, preserved as historical testimony, remind us that 3,500 people were murdered by gas in this camp alone. Leaving this memorial site, you carry the responsibility to transmit this history, that of over 100,000 deaths in a concentration network that embodies Nazi barbarism in Upper Austria.
8 sites to explore by car within the day
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 · 14,90€No calendar booking. Code sent immediately by email.
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Walk in the footsteps of a daring prisoner and unravel the mysteries of his escape.
Find a symbolic object, a testament to courage and hope in the face of oppression.
An immersive experience to never forget the strength of the human spirit at Mauthausen.
Freedom is a path carved in hope.
Follow the traces of an escape dream and find the object that symbolizes human resilience.
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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Walk in the shadow of the 186 steps of the Stairs of Death, where over 100,000 detainees perished between 1938 and 1945 in the Mauthausen concentration camp network.
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€. Collections d'archives photographiques SS et témoignages de survivants dans l'ancien bâtiment administratif du camp.
Gratuit. Base de données numérique des 200 000 détenus internés entre 1938 et 1945, accessible aux familles de victimes.
25€. Cuisine autrichienne traditionnelle face au Danube, spécialités de carpe du fleuve et Sachertorte maison depuis 1952.
18€. Navigation de 2h sur le Danube jusqu'au château baroque de Grein, avec vue panoramique sur les hauteurs où fut construit le camp.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.