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Decipher the hidden codes in Nazi deportation registers to expose the identities and fates of prisoners erased from history. Uncover the truth buried in Mauthausen's archives.
📱 1 to 10 phones · 1 team per phone · Independent codes
May 1945
You are Simon Wiesenthal, survivor and Nazi hunter, after the liberation of Mauthausen camp by the US 11th Armored Division on May 5, 1945.
Your
Delve into the chilling records of Mauthausen concentration camp, one of the most formidable under the Nazi regime, established in Upper Austria in 1938.
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
Your investigation begins at the Mauthausen Memorial, on a hill overlooking the town of Mauthausen in Upper Austria. This site, established as a Nazi concentration camp in 1938, was the main camp of a network of nearly 100 subcamps. As Simon Wiesenthal, you examine the first traces left by the Nazis. The Mauthausen Memorial, managed by the Republic of Austria since 1949, is a crucial place of remembrance. Walking through the paths, you try to visualize the daily life of thousands of prisoners, whose identities are at the heart of your mission for Mauthausen. Every visible element today, from the barracks foundations to the first commemorative monuments, provides a clue to reconstruct the deportation lists.
On the Appellplatz, the central roll-call square of Mauthausen camp, you grasp the extent of the horror. Covering approximately 10,000 square meters, this place was used for daily prisoner assemblies from 1938. It was here that thousands of lives were shattered, enduring prolonged exposure to the elements and violence. Public executions and brutal punishments took place here. As Simon Wiesenthal, you search for names in the registers, trying to identify the victims who perished in this square. Commemorative plaques were added in the 1950s, but your augmented reality reveals fragments of history, faces, stories etched into the collective memory of Mauthausen.
The Fallschirmspringerwand, or 'Parachutists' Wall,' confronts you with one of the most extreme cruelties of Mauthausen camp. This 36-meter-high cliff edge, located in the camp quarry, was mockingly named by the SS for forced jumps. From 1939 to 1945, hundreds of prisoners were pushed or forced to jump to their deaths. This site, linked to the granite quarry operations where prisoners worked under lethal conditions, is now marked with interpretive panels since the 1960s. Your objective is to find correlations between the quarry death lists and the general registers of Mauthausen camp, to reveal the extent of these atrocities in the Upper Austria region.
Your path then leads you to the Todesstiege, the 'Stairs of Death,' a poignant symbol of exploitation and extermination at Mauthausen. These 186 steep granite steps, built by prisoners in 1939, connected the quarry to the camp. Prisoners were forced to carry 50kg stones up the stairs, many dying from exhaustion or falls. This forced labor system also included systematic killings by pushing prisoners down. As Simon Wiesenthal, you ascend these preserved steps, aware that each step was an ordeal for those who preceded you. You search for names, dates, and information in the archives to document these disappearances, essential to your mission in Mauthausen.
Finally, your quest for truth brings you to the Raum der Namen, the 'Room of Names,' opened in 2003 within the former camp laundry building. This memorial room contains the names of nearly 200,000 registered prisoners, searchable via a database since 2014. It is here, at the heart of the Mauthausen Memorial, that your work finds its full meaning. You compare deportation registers and victim archives, seeking to complete each file, to give an identity to every shadow. The Internationales Denkmal, unveiled in 1968 on the former Appellplatz by Austrian President Franz Jonas, and restored in 2015, is another central site for commemorations. As Simon Wiesenthal, you contribute to this duty of remembrance, ensuring that the names of the victims of Mauthausen and Upper Austria are never forgotten.
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 left by the clandestine resistance to piece together a vital message.
Delve into the history of resistance networks that operated in the camp's shadow.
A poignant journey to understand courage and dignity in the face of the unspeakable.
Truth cannot be buried.
Uncover the buried secrets of Mauthausen camp and make heard the voice of those who resisted.
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 the chilling records of Mauthausen concentration camp, one of the most formidable under the Nazi regime, established in Upper Austria in 1938.
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.
10€. Explorez les expositions permanentes pour approfondir l'histoire du camp et de la vie des prisonniers.
Gratuit. Visitez cette église historique datant du XVe siècle, offrant un contraste architectural avec le mémorial.
5-8€. Savourez une tranche de la célèbre Linzer Torte, spécialité de la Haute-Autriche, dans une pâtisserie locale de Mauthausen.
20-30€. Profitez d'une croisière relaxante sur le Danube, offrant des vues sur les paysages de la Haute-Autriche près de Mauthausen.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.