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Decipher King Mongkut's hidden royal edicts scattered across Rattanakosin Island to uncover the secret reforms that transformed Siam from absolute monarchy to constitutional rule.
📱 1 to 10 phones · 1 team per phone · Independent codes
In 1851, King Mongkut ascended the throne of Siam with a radical vision: to modernize his kingdom while preserving its sacred traditions
You are a Royal Historian, secretly tasked by King Chulalongkorn in Bangkok, Siam, in 1875.
Your mission is to recover King Mongkut's lost ed
Uncover King Mongkut's secret edicts in the historic Rattanakosin quarter, birthplace of Bangkok since 1782.
Bangkok officially emerges in 1782 when Rama I founds Rattanakosin on the eastern bank of the Chao Phraya. The Grand Palace, a 218,400 m² complex, blends traditional Thai architecture with Western influences to assert the new Chakri dynasty's power. Within the royal enclosure, Wat Phra Kaew has housed the Emerald Buddha, Thailand's sacred palladium, since that same year. No human statues are permitted in this sanctuary where young Prince Mongkut studied Buddhist texts before ascending the throne in 1851.
Wat Pho, founded in 1788 by Rama I then renovated by Rama III between 1824 and 1851, becomes Mongkut's laboratory for religious reforms. This future Rama IV deepened his knowledge of Theravada Buddhism here, preparing the edicts that would modernize monastic administration. The 46-meter-long Reclining Buddha, covered in gold leaf, witnesses this period of intensive study. Located 800 meters from the Grand Palace, this temple forms a spiritual triangle with the sacred pillar San Lak Mueang at the capital's heart.
San Lak Mueang, the founding pillar erected in 1782 during Bangkok's creation, concentrates the city's protective spirit according to Thai tradition. Rama I symbolically anchored his new capital here after Ayutthaya's fall in 1767. King Mongkut, trained in Western sciences, respected this belief while modernizing Rattanakosin's administration. His administrative reforms, documented in royal archives, transformed traditional governance into a bureaucratic system inspired by European models observed during his correspondence with colonial powers.
Phra Sumen Fort, an octagonal fortress built in 1783 to defend Rattanakosin island, illustrates Rama I's military strategy. Located at the confluence of the Chao Phraya and Khlong Banglamphu, this bastion protected the new capital from Burmese invasions. Wat Ratchapradit, founded in 1846 by Rama III three years before Mongkut's accession, reflects the architectural evolution accompanying Buddhist reforms. These edifices testify to dynastic continuity between Rama III and his reformist successor.
Your archivist mission reveals how Mongkut transformed Siam into a modern power while preserving Rattanakosin's spiritual heritage. Between 1851 and 1868, his edicts abolished slavery, modernized education, and opened the kingdom to Western influences without losing its Buddhist identity. The Rattanakosin Exhibition Hall, a museum dedicated to this period, preserves original documents of these reforms. You leave with intimate understanding of a royal revolution that shaped contemporary Thailand, inscribed in every temple and monument of Bangkok's historic quarter.
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
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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Follow in the footsteps of a scholar-king who merged tradition and science to modernize his kingdom.
Delve into the reform of Siamese Buddhism and the influence of monks on politics.
Discover the foundations of divine royal power and its preservation in the face of modern challenges.
Decipher the secret plan of a visionary king for his kingdom.
Between monk and monarch, Mongkut charted a unique path.
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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Uncover King Mongkut's secret edicts in the historic Rattanakosin quarter, birthplace of Bangkok since 1782.
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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The ancient royal capital of a thousand temples
Where poignant history meets lush nature
City of monkeys and Khmer temples
Cradle of the first Thai kingdom
Northern Rose, Lanna kingdom's treasure
Land of artistic temples and the Golden Triangle
Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.
200 THB. Plus grande collection d'art thaïlandais avec objets personnels des rois Chakri et manuscrits de l'époque Mongkut.
150 THB. Plus grand bâtiment en teck doré au monde, résidence du Roi Rama V, fils de Mongkut, avec mobilier d'époque intact.
2800 THB. Cuisine royale thaïlandaise dans pavillon face au Wat Arun, avec spectacle de danses classiques khmères pratiquées à la cour de Mongkut.
1200 THB. Navigation en barge traditionnelle sur l'itinéraire exact emprunté par Mongkut pour ses visites officielles entre palais et temples.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.