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Decipher why Edward I's masterpiece castle was abandoned just £684 short of completion. Uncover the conspiracy that halted a kingdom's greatest fortress.
📱 1 to 10 phones · 1 team per phone · Independent codes
In 1295, King Edward I commissioned his greatest engineer, Master James of St George, to build the ultimate castle: Beaumaris
You are a royal master builder, dispatched by Edward I of England in 1298 to inspect the progress of Beaumaris Castle.
Your mission: understand why this fortress, conceived as a
Delve into 13th-century Wales and unearth the secret of the £684 haunting Beaumaris Castle, Edward I's most ambitious fortress.
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 investigation begins at the main entrance of Beaumaris Castle, whose construction was ordered by Edward I of England in 1295. This Cadw monument, part of the UNESCO Edwardian Castles and Town Walls of North Wales listed in 1986, was meant to complete the conquest of Wales. As a master builder, you examine the ramparts, approximately 1 km in perimeter, and the towers reaching 18 meters in height. The architectural ambition is evident, but construction ceased abruptly, leaving the fortress unfinished, a mystery to historians for centuries. How much of the £684 is missing to complete this masterpiece of military architecture?
Moving slightly away from the castle, you cross the site of the former medieval village of Llanfaes, razed in 1295 to allow for the construction of Beaumaris. Archaeological excavations have revealed 13th-century artifacts, bearing witness to daily life before the Edwardian conquest. This now peaceful sandy beach hides the ghosts of a brutal past. Your mission then leads you to the historic town center of Beaumaris, ranked among the Most Beautiful Towns in Britain. The cobbled streets lined with half-timbered houses preserve Edwardian architecture, and the market square recalls royal fairs authorized by Edward I's charters as early as 1296. These places, though transformed, retain the imprint of royal decisions.
Your journey takes you to Beaumaris Gaol, built in 1829 and operating until 1878. Though more recent than the castle, it illustrates the continuity of royal power and justice in North Wales. Its original cells, with a historical capacity of about 40, preserve 19th-century prisoner graffiti, some with detailed drawings. These marks on the walls, vestiges of past lives, might hold unsuspected information about the Victorian judicial system and, who knows, about secrets related to the administration of crown funds. The exhibition on capital punishment adjacent to the courthouse reminds us of the era's severity.
St Mary and St Nicholas Church, founded in the 14th century and rebuilt in 1838 in a Victorian Gothic style, is another stop on your investigation in Beaumaris. It contains stained glass windows and funerary monuments of local noble families from the 17th-18th centuries, such as the Bulkeleys. Sheriff James de Bulkeley, a local landowner from 1685 to 1766, could have had connections to local administration and resource management. By studying these symbols of power and influence, you seek clues about the destination of the missing sums. Every stone in Beaumaris seems to whisper stories of families and fortunes.
Your quest concludes on Beaumaris Pier, a Victorian structure built in 1872 and 233 meters long. A historic departure point for cruises to Puffin Island and for observing seabirds and seals since the 19th century, it offers panoramic views of Beaumaris Bay and the Menai Strait. These waters have seen ships carrying materials for the castle, but also potential treasures or diverted funds. As Edward I's master builder, you leave Beaumaris with a clearer vision of the challenges and mysteries surrounding this unfinished fortress, having explored the streets and monuments that bear witness to the complex history of North Wales and its Cadw Historic Monument heritage. Your report to Edward I will be rich in revelations about those £684.
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?
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Discover Edward I's last great castle, an architectural marvel that was never completed.
Explore a masterpiece of concentric design, a symbol of medieval military zenith.
Decipher the master builder's secret melody, a testament carved in stone.
The silence of stones reveals the most beautiful music.
Listen to the echo of a frozen dream.
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 13th-century Wales and unearth the secret of the £684 haunting Beaumaris Castle, Edward I's most ambitious fortress.
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
More destinations, tours & urban treasure hunts across the country
Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.
Adultes 10,80£, Enfants 7,60£. Explorez l'intérieur des remparts et des tours de cette forteresse UNESCO inachevée, partie des Châteaux édouardiens 1986.
Adultes 9,00£, Enfants 6,00£. Découvrez les cellules d'origine et les expositions sur le système judiciaire victorien de cette prison construite en 1829.
Adultes 20,00£, Enfants 12,00£. Embarquez depuis la jetée victorienne de 1872 pour observer oiseaux marins et phoques au large de Beaumaris.
Prix variables. Savourez les produits frais de la mer d'Irlande dans les restaurants du centre-ville historique de Beaumaris, réputée pour sa gastronomie côtière.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.