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Uncover the Hanseatic conspiracy behind the cursed Green Beer that poisoned guild masters in medieval Soest. Decode clues at historic landmarks to expose the traitor's identity before the secret fades forever.
📱 1 to 10 phones · 1 team per phone · Independent codes
In the prosperous Hanseatic trading hub of Soest during the 14th century, a sinister plot unfolded amid the guildhalls and market squares
You are a newly appointed junior magistrate, tasked by Burchard von Serken in 14th-century Soest, Germany, to investigate 'The Enigma of the Green Beer' shaking the commercial
Dive into the heart of Soest, a Hanseatic city in Westphalia, where medieval ramparts still whisper the secrets of a thousand-year-old trade and a legendary green beer.
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 quest for the green beer begins at the Osthofentor, a 14th-century medieval fortified gate, an emblem of Soest's ramparts. This structure, a key element of the Hanseatic fortifications, immediately immerses you in the strategic importance of the city as a member of the Hanseatic League. Here, merchants and travelers entered and exited, carrying the goods that made Soest rich. You will discover the first puzzles that will guide you through the alleys where Konrad von Soest, the famous miniature painter of the early 15th century, could have found inspiration for his works, capturing the essence of this medieval Hanseatic city.
The route then leads you to St. Petri Kirche, a Gothic parish church built between the 14th and 15th centuries. Located in the heart of Soest's historic center, in the Hanseatic quarter, it represents the medieval religious architecture of Westphalia. Its walls witnessed guild assemblies and public announcements, events that punctuated the city's commercial and spiritual life. The church's stained glass and stones might well reveal hidden clues about the secret transactions surrounding the famous beer, a major product of local trade.
Continue your investigation towards Dom St. Patrokli, whose construction began in the 10th century and was partially completed in the 13th century. This major religious building in Soest, in Rhenish Romanesque style, houses medieval crypts, testifying to the city's religious importance. It was here, in the shadow of the imposing naves, that the most delicate affairs were sometimes plotted, away from prying eyes. Symbols carved in stone or frescoes could hold the key to part of the enigma, taking you back through the centuries to understand the influence of Mathias Corvin, King of Hungary, on trade relations with the Hanseatic League.
The Marktplatz, Soest's economic and administrative heart since the Middle Ages, is your next stop. Surrounded by half-timbered merchant houses dating from the 15th and 16th centuries, this square hosted beer and grain markets, essential to Hanseatic trade. It was in this vibrant place of exchange that rumors circulated and secrets were bought. You will have to carefully observe the architectural details and the signs of the old shops to decipher the messages left by the brewers, while the ramparts of Soest, restored in the 14th-15th centuries and about 2 km long, offer a perspective on the extent of this prosperous Hanseatic city.
Finally, your journey will take you to the Wiesenkirche, a late Gothic church from the 15th century, located in the southern district of Soest, an area of medieval expansion, then to the Brunsteinkapelle, a 13th-century medieval chapel, near the old trade routes, and finally to the Hohne district, a major commercial axis. These places, witnesses to Soest's urban growth and dynamism, hold the last pieces of the puzzle. By exploring this Westphalian architectural heritage, you will not only have solved the enigma of the green beer but also discovered the history of Soest, a city in North Rhine-Westphalia whose strategic and commercial importance during the Hanseatic era is etched in every stone.
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 the secret of the famous Grünbier, brewed with singular herbs.
Explore the commercial influence and wealth of a medieval city.
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The past is a recipe, it's up to you to decipher it.
A sip of history, a secret to unravel.
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 heart of Soest, a Hanseatic city in Westphalia, where medieval ramparts still whisper the secrets of a thousand-year-old trade and a legendary green beer.
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.
Gratuit. Parcourez une partie des remparts médiévaux conservés pour une vue unique sur la ville et ses environs.
5€. Explorez les expositions sur l'histoire des fortifications de Soest et la vie médiévale au sein de la porte elle-même.
7€. Découvrez l'art moderne de la Westphalie et des œuvres de l'expressionniste Wilhelm Morgner, natif de Soest.
Variable. Goûtez la bière locale 'Grünsandsteinbier' dans une brasserie traditionnelle du centre historique de Soest.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.