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Uncover the secret of a vanished Celtic gold shipment from the ancient salt mines. Decode clues across Dürrnberg to reclaim the treasure before it’s lost forever.
📱 1 to 10 phones · 1 team per phone · Independent codes
In the misty heights of Dürrnberg plateau above Hallein, Celtic miners extracted the 'white gold' of salt for over 7,000 years, amassing unimaginable wealth that fueled empires
You are a Celtic prince of Dürrnberg, a tribal chief from 6th century BC Hallein, Austria, tasked with recovering lost Celtic gold.
Your quest begins at Dürrnberg'
Dive into the Celtic salt mines of Dürrnberg, exploited for 2600 years by warrior princes who controlled the white gold 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.
Places tied to your adventure — optional entries, totally up to you · per person
The Keltenmuseum Hallein houses central Austria's largest collection of Celtic artifacts, witnesses to 6th century BC princely tombs discovered on Dürrnberg. This neoclassical facade hides treasures of Celtic warriors who controlled salt trade routes between the Adriatic and Baltic seas. The exhibited gold fibulae, torcs and ritual helmets reveal a refined civilization, masters of metallurgy and long-distance commerce, well before Romans arrived in the Alps.
The Dürrnberg plateau has dominated Hallein for 2600 years, its underground galleries carved by Celtic miners from the 7th century BC. These tunnels, among Europe's oldest, fed a commercial network extending to Mediterranean coasts. Dürrnberg's Celtic princes accumulated considerable wealth through this salt monopoly, a commodity as precious as gold at the time. Their burials reveal objects from Greece, Etruria and Baltic amber, proof of intercontinental exchanges.
Hallein's Altstadt preserves the medieval layout of this Salzburg town, its cobbled alleys winding between 17th-century baroque facades. This post-Renaissance architecture masks older foundations, where Celtic descendants continued mining under Roman then Bavarian rule. The Rathaus, rebuilt after the 1843 fire, stands at the heart of this compact historic center you cross following clues of your Celtic investigation.
Griestorgasse and Griesbrücke connect the historic Gries district to downtown via a bridge over the Salzach, this river that once carried salt barges toward the Danube. These medieval cobbled alleys saw convoys of Venetian, Bavarian and Hungarian merchants coming to supply themselves at Hallein's warehouses. Pernerinsel island, a cultural space on the Salzach, offers the final viewpoint over this salt city that enriched Salzburg's archbishopric for centuries.
Your Hallein route reveals 2600 years of continuous Alpine salt exploitation, from Dürrnberg's Celtic princes to the archbishopric's baroque merchants. This interactive investigation lets you grasp the geographic permanence of natural wealth, shaping civilizations far beyond political conquests. You leave with visceral understanding of this unknown Celtic Austria, predating Mozart and the Habsburgs, where mines' white gold already created princely fortunes.
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?
Get my code · 12€No calendar booking. Code sent immediately by email.
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Embark on a thrilling quest to locate a legendary Celtic treasure.
Explore the Celtic legends and myths that shaped the region's history.
Use natural and architectural landmarks to decipher an ancient map.
Adventure awaits those who dare to delve into the past.
Your insight will uncover a forgotten fortune.
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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Dive into the Celtic salt mines of Dürrnberg, exploited for 2600 years by warrior princes who controlled the white gold of the Alps.
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.
24€. Descendez dans les galeries celtiques authentiques avec toboggan de mineur et traversée souterraine du lac salé.
8€. Plus grande collection d'artefacts celtiques d'Autriche centrale avec reconstitutions de tombes princières du VIe siècle av. J.-C.
35€. Navigation traditionnelle sur radeaux de bois reconstitués, suivant l'ancienne route commerciale du sel vers le Danube.
12€. Soufflé traditionnel de Salzbourg aux trois pics symbolisant les montagnes locales, servi dans les cafés historiques de l'Altstadt.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.