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Uncover the dark secret of King Kassapa's parricide and the curse that doomed his Lion Rock fortress. Decipher clues across ancient ruins to expose the truth behind his downfall.
📱 1 to 10 phones · 1 team per phone · Independent codes
In the 5th century AD, Prince Kassapa seized the throne of Anuradhapura by murdering his father, King Dhatusena, in a brutal act of treachery
You are a trusted royal chronicler from the Anuradhapura kingdom, dispatched in 496 AD to the 200-meter-high Sigiriya rock fortress.
Your mission: document the
Immerse yourself in the turmoil of 5th-century Sri Lanka and the parricidal secret of King Kassapa I, builder of the Sigiriya fortress.
« Sudathadhipa »— Inscription from the Cobra Hood Cave, 5th century
Your exploration of the Ancient City of Sigiriya begins at the Water Gardens, a testament to the ingenuity of Kassapa I. Built in the 5th century, these hydraulic gardens span approximately 10 hectares, featuring symmetrical pools up to 30 meters long. The central fountains, restored in the 1980s by the Archaeological Survey Department of Sri Lanka, utilized a siphon mechanism to project water up to 3-4 meters high, an advanced technology for its time. These developments showcase the king's desire to legitimize his power after the assassination of his father Dhatusena, transforming the base of the rock into a haven of peace and power.
Continuing your ascent, you reach the Mirror Wall, a polished plaster wall dating from the 5th century. 140 meters long and 40 meters high, it was built under Kassapa I as an integral part of the fortification. This wall is remarkable for its over 1,500 poetic graffiti inscribed in Brahmi by visitors between the 6th and 14th centuries, testifying to their admiration for the Sigiriya frescoes. Restored in 1950 by the British government, it constitutes a living archive of the site's perception through the centuries, revealing the enduring fascination with this monument in the Central Province.
Beyond the Mirror Wall, the Sigiriya Frescoes await you at a height of 110 meters on the western face of the rock. These rock paintings, created in the 5th century under Kassapa I, depicted approximately 500 women, 18 of which are still preserved, each measuring 1.5 meters high. Their artistic style, influenced by India's Ajanta school, utilized natural pigments based on red and green clay. Protected by a 60-meter-long covered gallery, they were partially erased by Buddhist iconoclasm in the 14th century but remain a masterpiece of Sinhalese art.
Your path then leads to the Lion Gate, the main access to the fortress, located halfway up the rock (160 meters altitude). This monumental gate, built in the 5th century by Kassapa I, was flanked by two brick and plaster lion paws, 8 meters high each, framing a 10-meter-wide opening. The lion's head, which collapsed in the 19th century, was a symbol of royal power. Discovered and excavated by H.C.P. Bell in 1898 for the Ceylon Antiquities Department, it is the gateway to the summit, where Kassapa I attempted to establish his new capital after fleeing his brother Moggallana I.
Finally, at the summit of Sigiriya Rock, you discover the Audience Hall Platform, a paved platform measuring 20m x 5m with a throne carved into the living rock, also from the 5th century. Paved with polished slabs without mortar, it offers a panoramic view at 200 meters high and demonstrates precise engineering. Used for royal audiences, it retains traces of an adjacent basin for rituals. Archaeological excavations in the 1970s by the Central Cultural Fund of Sri Lanka revealed the extent of this complex. This interactive visit to Sigiriya, a UNESCO site since 1982, allows you to understand the ambitions of a king and the rich heritage of the Central Province, from its Boulder Gardens to its water cisterns, before the site was abandoned in 495 and transformed into a Buddhist monastery.
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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Explore the remains of a unique royal complex, built on a 200-meter monolith
Decipher the secrets hidden in 5th-century rock paintings, miraculously preserved
Reconstruct the tragedy of the patricidal king and his impregnable fortress turned tomb
Will you find Kassapa's secret testament?
Eight clues scattered across the celestial fortress
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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Immerse yourself in the turmoil of 5th-century Sri Lanka and the parricidal secret of King Kassapa I, builder of the Sigiriya fortress.
1 purchase = 1 phone. Play several on the same device.
No calendar booking. Code sent immediately by email.
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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.

10€. Explorez les artefacts découverts sur le site archéologique de Sigiriya et approfondissez votre compréhension de la culture cingalaise du Ve siècle.
15€. Visitez ce complexe de temples rupestres datant du Ier siècle av. J.-C., un autre site UNESCO à proximité de Sigiriya, réputé pour ses peintures et statues bouddhistes.
30€. Apprenez à préparer des plats traditionnels de la province-du-centre, comme le curry de légumes ou le riz et curry, avec des produits locaux frais.
50€. Observez des centaines d'éléphants sauvages se rassembler autour du réservoir de Minneriya, surtout entre juillet et octobre, à seulement une heure de Sigiriya.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.