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Uncover the fate of Willie Hutchison, who vanished after discovering a legendary opal vein in 1946. Follow his ghostly clues through underground mines and dugouts to expose the truth behind his disappearance.
📱 1 to 10 phones · 1 team per phone · Independent codes
In February 1946, lone miner Willie Hutchison unearthed a motherlode of flawless opals 30 meters beneath Coober Pedy's scorching desert sands—a fortune that could have made him rich beyond dreams
You are Willie Hutchison, legendary opal prospector who founded Coober Pedy in 1915.
You arrive at the historic Big Winch, the first extraction winch of this underground
Dive into the underground world of Coober Pedy, world capital of opals where 70% of residents have lived underground since 1915.
Coober Pedy was born in 1915 when Willie Hutchison discovered the first opal deposits in the South Australia desert. The Big Winch, 8-meter winch you discover in the first stage, testifies to this heroic era when prospectors hand-dug 15-meter deep shafts. Desert heat, reaching 50°C in summer, quickly pushed miners to settle underground to survive. This underground architecture becomes Coober Pedy's signature, the only town in the world where inhabitants live mainly in troglodyte dwellings.
The Serbian Orthodox church, built in the 1960s-1970s, perfectly illustrates this adaptation. Entirely carved in local red rock by the immigrant Serbian community, it can accommodate 150 faithful in an underground cathedral maintained at 21°C year-round. Old Timers and Umoona mines, transformed into tourist museums, plunge you into authentic galleries where three generations of prospectors extracted 70% of world opal production. These underground networks extend several kilometers beneath the town.
The Breakaways Reserve, located 32 km north, reveals the geological landscape that made this mineral wealth possible. These colorful hills of the Stewart Range offer a panorama of ancient prehistoric inland sea beds, whose sediments created perfect conditions for opal formation. The striking contrast between this natural lunar landscape and Moon Plain, artificial 3 km² zone whitened by extraction residues, tells the impact of a hundred years of mining exploitation on the territory.
Desert Cave Hotel, Australia's first entirely underground hotel built in the 1980s, pushes troglodyte architecture toward modern luxury. Its 50 rooms carved 40 meters deep in limestone maintain a constant temperature of 21°C without air conditioning. The drive-in cinema, operating since the 1970s with its 200-vehicle capacity, symbolizes urban culture's adaptation to extreme outback conditions, creating an oasis of leisure in the heart of the Australian desert.
Your journey through Coober Pedy reveals an exceptional lesson in human adaptation: how a community of prospectors created in one century a viable underground civilization, blending mining tradition and architectural innovation. You leave with intimate understanding of this unique town, where South Australia's mining heritage is still lived daily in every house, church, and hotel carved in the red rock of the Australian desert.
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
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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Discover how miners developed underground housing to escape 50°C surface temperatures
Learn to identify different types of opals and their unique geological formations
Explore the world's only city where churches, hotels and homes are entirely underground
Beneath the scorched earth, the fires of the rainbow
Underground adventure
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 underground world of Coober Pedy, world capital of opals where 70% of residents have lived underground since 1915.
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
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Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.
15€. Descendez dans les galeries authentiques avec un ancien mineur qui vous apprend à reconnaître les veines d'opales dans la roche.
180€. Dormez 40 mètres sous terre dans une chambre creusée dans la roche calcaire, température naturelle 21°C toute l'année.
35€. Savourez la spécialité locale dans une salle à manger creusée dans la roche, accompagnée de vins de Barossa Valley.
25€. Cherchez vos propres opales avec les outils traditionnels dans une mine active, vous gardez vos trouvailles.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.