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Uncover Frederick Barbarossa's hidden imperial charter buried in Würzburg's Old Town. Decode clues from prince-bishop sites to expose the secret that granted Franconia to the church and reclaim its power before it's lost forever.
📱 1 to 10 phones · 1 team per phone · Independent codes
In 1156, Holy Roman Emperor Frederick Barbarossa arrived in Würzburg seeking the bishop's approval for his controversial divorce
You are an imperial archivist in Würzburg, in the year 1156, tasked by Frederick I Barbarossa himself to recover a lost charter crucial for the legitimacy of his reign.
Your
Delve into the ancient secrets of Würzburg, a Bavarian city where stones whisper tales of emperors and saints.
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 adventure in Würzburg begins on the Alte Mainbrücke, a stone bridge built between 1473 and 1543. At 185 meters long with 11 arches, it offers an iconic view of the Marienberg Fortress and the city. In 1733, architect Balthasar Neumann had statues of patron saints placed there, whose shadows guide you to the first clues. Although the arches were destroyed by the Nazis in 1945 and rebuilt identically between 1948 and 1957, the spirit of this protected historic monument in Germany remains, watching over the Main and its secrets. Here, Würzburg's history unfolds, stone by stone.
Continue your investigation by heading to the Marienkapelle, a Gothic chapel erected between 1377 and 1479 in the heart of the Marktplatz. Its 50-meter-high tower houses 14th-century stained glass windows, restored after 1945. This site, linked to Marian pilgrimages since the 13th century, resonates with ancient prayers. Inside, Gothic frescoes and a statue of the Black Madonna reveal new fragments of the charter. The damages from World War II, repaired between 1945 and 1960, have not erased the memory of this place of worship, essential to Würzburg's heritage.
Your journey then takes you to the Dom St. Kilian, the Romanesque cathedral whose construction began in 1040 under Bishop Burchard II and was completed in 1187. 105 meters long and 27 meters high, it houses an 11th-century crypt where the tomb of Saint Kilian, the evangelist martyred in 689, rests. The 76-meter baroque tower, added in 1459, was restored after the 1945 bombings. This site, a UNESCO World Heritage site since 1981 as part of the Würzburg Residence and its episcopal complex, is a pillar of Würzburg and Bavarian history.
Nearby, discover Neumünster, an abbey church founded in 1065 by Gunther of Bamberg, then rebuilt in Baroque style by Balthasar Neumann between 1719 and 1735. Its 40-meter diameter dome dominates the landscape. The underground tomb houses the bishops of Würzburg since the 11th century, while the adjacent gardens, with their 18th-century fountains, offer a moment of reflection. Restored after the destructions of 1945, Neumünster completes your vision of Würzburg's rich architectural and spiritual heritage, revealing further clues about Barbarossa's charter.
Your quest finally leads you to Festung Marienberg, a fortress founded in the 7th century and redesigned between 1200 and 1600 as a princely residence. Dominating the Main by 92 meters, it has housed museums since 1931. St. Maria Chapel, built between 703 and 709, is the oldest church in Franconia. The adjacent vineyards, classified since the Middle Ages, bear witness to an ancient viticultural past. Used as a refuge during the Swedish siege of 1631, this fortress is the culmination of your exploration of Würzburg's heritage. Here, you will assemble the last pieces of the puzzle, solving the Secret of Barbarossa's Charter and leaving with a deep understanding of Bavarian history.
5-10 curated sites across the territory
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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Decipher codes hidden in ancient writings and engravings.
Explore the details of millennia-old fortresses and churches.
Interpret the coats of arms and emblems of powerful lords.
Power is not always written in visible ink.
Hunt for fragments of a forgotten truth.
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 ancient secrets of Würzburg, a Bavarian city where stones whisper tales of emperors and saints.
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.
Environ 9€. Explorez ce palais baroque, construit entre 1719 et 1744 par Balthasar Neumann, avec 350 pièces et l'escalier impérial fresqué par Giovanni Battista Tiepolo en 1752, un site UNESCO depuis 1981.
Environ 4,50€. Découvrez les collections historiques et artistiques de la forteresse, ancienne résidence princière, avec des objets allant du VIIe au XVIIe siècle, offrant une vue sur le Main.
Variable. Profitez d'une dégustation des célèbres vins de Franconie dans une cave traditionnelle de Würzburg, notamment ceux issus des vignes adjacentes à la Festung Marienberg, classées depuis le Moyen Âge.
Gratuit. Flânez dans les jardins à la française de la Residenz, créés entre 1734 et 1765, un cadre paisible pour admirer la symétrie baroque et la verdure.
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