Nikkō Tōshō-gū — Ieyasu's Hidden Secret
Uncover the forbidden secret buried within Tokugawa Ieyasu's opulent mausoleum at Nikkō Tōshō-gū. Decode cryptic symbols and outwit ancient guardians to expose a conspiracy that threatened the shogunate's eternal power.
📱 1 to 10 phones · 1 team per phone · Independent codes
In 1617, the mighty Tokugawa Ieyasu, unifier of Japan and founder of the Edo shogunate, was enshrined as a deity at Nikkō Tōshō-gū
Nikkō Tōshō-gū — Ieyasu's Hidden Secret
You are a trusted samurai retainer of the Tokugawa clan, dispatched on a covert mission to Nikko in 1617.
Your investigation begins at Shinkyo Bridge, the first stop of a
Uncover the mystery of Tokugawa Ieyasu's secret mausoleum, hidden within Japan's most magnificent shrine since 1617.
The story that haunts this land
Nikko awakens under your steps at Shinkyo Bridge, this 28-meter masterpiece built in 1636 then rebuilt in 1815 after a fire. This sacred red wooden bridge marks the entrance to the domain where Tokugawa Ieyasu's remains rest, founder of the shogunate in 1603. In 1617, the first shogun's funeral procession crossed these planks for the last time, carrying the body toward his secret mausoleum you're about to discover. Classified as National Treasure, this bridge immerses you in the solemn atmosphere of pilgrimage toward one of Kanto's most sacred sites.
Cross the stone torii erected in 1621 by Tōdō Takatora, Ieyasu's faithful retainer, 9 meters high in massive granite. This monumental gate marks the traditional entrance to Nikko Toshogu shrines, integral part of the UNESCO site inscribed in 1999. Takatora, brilliant military architect, wanted this torii to resist centuries as eternal guardian of the sacred domain. Under this arch, you enter the enclosure where Okumiya hides, Ieyasu's true mausoleum that few visitors reach.
The five-story pagoda rises before you, built in 1650 by Tokugawa Iemitsu, Ieyasu's grandson. 36 meters high, this engineering marvel resists earthquakes thanks to a revolutionary central counterweight system. Each floor symbolizes an element: earth, water, fire, wind, void, according to Buddhist cosmology that the Tokugawa integrated into their Shinto shrine. Classified National Treasure, this pagoda guards the main entrance to the complex where lies the true tomb of the dynasty founder who unified Japan for 265 years.
Omote-mon, main gate erected in 1636, welcomes you with its 508 detailed sculptures and Buddhist Nio guardians. This golden gate, National Treasure, protects the heart of Toshogu shrine dedicated to Ieyasu, deified after his death. But the real secret hides further: beyond the famous Yomeimon and its emblematic three monkeys carvings, a discreet staircase leads to Okumiya, the shogun's authentic tomb. There truly rest Ieyasu's remains, in a sober mausoleum far from tourist splendors, guarded by the silence of cedars planted in 1617.
You emerge from this initiatory quest with certainty of having touched feudal Japan's soul. Ieyasu's secret wasn't in the main shrine's gilding, but in this hidden tomb where the shogunate founder rests in peace for four centuries. Covering these 1.5 km of UNESCO heritage, you followed traces of pilgrims, daimyo and craftsmen who shaped this world-unique complex. Nikko thus reveals its dual nature: sumptuous theater for crowds and intimate sanctuary for initiates who know to seek beyond appearances.
A game, a guided tour and a heritage guide — all in one
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. »
How does it work?
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.
Want to go deeper?
Places tied to your adventure — optional entries, totally up to you · per person
The Route
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.
How does it work with a group?
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.
- ✓All codes are independent — play at the same time OR separately, each team advances at its own pace.
- ✓Leaderboard between your teams + global game leaderboard — each score appears in the public ranking.
- ✓More than 10 phones or need a personalized quest? Discover custom tours.
Ready to live this adventure?
Get my code · 12€No calendar booking. Code sent immediately by email.
🔒 Secure payment · Code in 5 min · Free cancellation
Practical info
Why this route?
Divine Architecture
Explore Nikko's temples and shrines, architectural masterpieces where every detail holds spiritual and historical significance.
The Shogun's Legacy
Delve into the history of Tokugawa Ieyasu, the shogunate founder who unified Japan, and discover how he ensured the longevity of his power.
Hidden Symbols
Decipher the allegories, motifs, and sculptures adorning the buildings, revealing the secret messages left by the deified shogun.
The stones whisper power.
Decipher the Shogun's prophecy.
9 features nobody else has
OddballTrip combines gamified play, augmented reality and AI. All our competitors deliver 1 or 2 of these angles. We deliver all 5.
AR treasure chest
A golden chest floats in front of the monument. Tap → opening animation → reveals a secret message.
AR narrator character
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.
Magic golden letters
At the puzzle climax, golden letters magically write themselves on the real wall — that's the puzzle answer. An unforgettable visual effect.
Written + audio narration
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.
360° radar + vibration
A mini-radar shows the target even behind you, and the phone vibrates when you aim in the right direction.
Heritage storytelling
Every puzzle weaves in real historical facts (architecture, era, anecdotes). You learn by playing — like a gamified audioguide.
Progressive AI hints
3 levels of AI-generated help: vibe → where to look → answer format. You're never stuck.
AR selfie memento
At the end of the game, capture a selfie with OddballTrip banner + mascot, shareable on Instagram, TikTok.
Zero app to install
PWA technology: open the link, it plays in your browser. Same quality as an app, no App Store hassle.
Frequently asked questions
Q01Do I need to download an app?
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.
Q02Does it work offline?
GPS yes (handled by your phone). Maps yes (tiles cached). AI and hints need an intermittent 4G connection.
Q03How long does a game take?
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.
Q04What happens if I'm stuck?
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).
Q05What's the age range?
From 12 without an adult, from 6 with an adult reading puzzles. Works for families, couples, friend groups, companies.
Q06What if my city isn't in the catalogue?
Pre-register or contact us — we'll email you as soon as your city is live.
Q07What is augmented reality exactly?
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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Your turn to play
Uncover the mystery of Tokugawa Ieyasu's secret mausoleum, hidden within Japan's most magnificent shrine since 1617.
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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