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Decipher the secret Glagolitic code hidden by Krk's guardians to thwart a shadowy threat to their sacred heritage before it's lost forever.
📱 1 to 10 phones · 1 team per phone · Independent codes
In the medieval heart of Krk Town, the Guardians of the Glagolitic script—monks and scribes who preserved Croatia's ancient Slavic liturgy—faced a dire peril
You are a sworn guardian of the Frankopan lineage, in Krk, 1524, tasked with protecting its heritage against threats looming over the island.
Your mission takes you through the medieval
Discover Krk, the pearl of Kvarner, by deciphering the secrets buried beneath the medieval ramparts and Roman vestiges of this millennial island city.
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 begins at Rimska vrata, remnants of the Roman gates of Curicum, dating from the 1st century AD. These ashlar arches, restored in 1970, remind you of Krk's strategic importance since Antiquity. The city, mentioned in the Itinerarium Antonini in the 3rd century, saw its medieval fortifications incorporate these Roman elements. It is here that you will have to decipher the first inscriptions, revealing the ancient links between the Empire and the local nobility, such as the Frankopan family. Krk's past unfolds, layer by layer, beneath your feet.
Continue towards Trg Kamplin, Krk's historic central square, which was the Roman forum in the 1st century BC and the medieval administrative center. This local stone-paved site is steeped in history, having hosted Krk's oldest fountain, dating from 1488, and public gatherings, including executions in the 16th century. It was on this square that noble families like the Frankopan, of whom Ivan Frankopan Krčki was a significant patron of the Franciscans, exercised their power, leaving indelible traces in the city's architecture and traditions. The city's secrets often hide in plain sight.
Your itinerary then leads you to Katedrala Uznesenja Marijina, Krk's main church, whose foundations date back to the 5th century on an early Christian basilica. Admire its 12th-century Romanesque bell tower, 31 meters high, and the adjacent 9th-century baptistery, one of the oldest in Croatian Europe. This is where Viktorija Krk (1480-1529), wife of King Matthias Corvin, rests, testifying to the royal alliances that shaped the history of this part of Kvarner. The messages you seek are etched into the sacred stone of this cathedral.
Nearby, the Franjevački samostan, founded in 1292 by the Franciscans, reveals its 1455 church and 15th-century cloister. This monastery was not only a place of prayer but also an intellectual center with its library of over 500 medieval manuscripts, and a refuge, used as a hospital during the plague of 1526-1527. The Krk City Walls, built from the 7th century and reinforced in the 15th century under Venceslas III of Zrin, surround the old town for about 2 km with 11 watchtowers. These walls, incorporating Roman elements from the 1st century, are a testament to Krk's resilience through the ages.
Finally, your journey concludes near Crkva sv. Kvirina, a 12th-century Romanesque church dedicated to Saint Quirinus, a Roman martyr. Its modest dimensions (a single nave 15 meters long) and partially preserved 13th-century Byzantine frescoes offer an intimate glimpse into medieval art. This church, like the Roman Gates and other monuments of Krk, is a centerpiece of Croatian historical heritage. By visiting these sites, you will have not only deciphered the Guardians' Cipher but also experienced a deep immersion in the history of Krk, an enriching experience for anyone looking for things to do in Krk or an authentic Krk family visit.
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.
Ready to live this adventure?
Get my code · 14,90€No calendar booking. Code sent immediately by email.
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Untangle the encrypted puzzles inspired by Glagolitic script.
Dive into the plots and hidden alliances of the Venetian era.
Unearth a buried truth, vital for Krk's heritage.
Words can betray, but ciphers reveal the truth.
The shadow of history, a mystery to elucidate.
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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Discover Krk, the pearl of Kvarner, by deciphering the secrets buried beneath the medieval ramparts and Roman vestiges of this millennial island city.
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.
5€. Explorez les collections archéologiques et ethnographiques retraçant l'histoire de Krk, de l'Antiquité à nos jours.
6€. Visitez la forteresse médiévale des comtes de Krk, offrant une vue imprenable sur le port et la vieille ville.
15-25€. Savourez le vin blanc autochtone de l'île de Krk dans une konoba traditionnelle du Kvarner.
Gratuit. Détendez-vous sur cette plage primée, idéale pour une baignade rafraîchissante après votre exploration historique de Krk.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.