The Kantei Conspiracy — Uncover the 72-Hour Cover-Up
Decipher classified government communications and expose the truth about three days of silence that nearly destroyed a nation. Unravel the Fukushima conspiracy at the heart of Japanese power.
📱 1 to 10 phones · 1 team per phone · Independent codes
March 11, 2011: a 9
The Kantei Conspiracy — Uncover the 72-Hour Cover-Up
You are Shigeru Yoshida, Prime Minister of post-war Tokyo, 1952, facing an unprecedented crisis from the Kantei.
Your mission takes you through Nagat
Delve into the 72 hours that shook Japan, where state secrets and crucial decisions were made in the heart of Tokyo.
The story that haunts this land
Your investigation begins in front of the Prime Minister's Official Residence, the Kantei, a modern 40-meter-high concrete and glass building. Built in 2007 to replace the structure damaged by the 1923 earthquake, it has housed the offices of the Prime Minister of Japan since 2002. Designed by Kunio Maekawa, this 20,000 m² building, equipped with 500 kW solar panels, was one of Japan's first ecological government buildings. From here, you observe the security measures protecting this nerve center of power, crucial for understanding the decisions made by Shigeru Yoshida and Fumimaro Konoe, which shaped the nation's destiny.
Proceed to the National Diet Building, a 217-meter-long Western neoclassical colossus. Erected in 1936, it is the seat of Japan's bicameral Parliament and was where the post-World War II Constitution was adopted in 1947. Architect Yoshiro Waguri gave this edifice a 65-meter central dome, visible from all of Nagatachō. Although damaged during the 1945 bombing of Tokyo, it was restored in the 1950s. This is where laws are passed, debates rage, and decisions impacting the daily lives of Kanto citizens are made, a place of immense power and stakes.
Your route then takes you to the Ministry of Economy, Trade and Industry (METI), a postmodern building from 1996, recognizable by its 100-meter-long glass facade. Founded in 1925 as the Ministry of Commerce and Industry and renamed METI in 2001, it played a decisive role in Japan's economic reconstruction after 1945. With 80,000 m² of offices, it also houses the Japanese Patent Office, issuing 300,000 patents annually. This site is a silent witness to Japanese resilience and innovation, essential qualities for understanding Tokyo's place in the world.
A short walk away, you discover the Nippon Press Center Building, a 65-meter-high Metabolist edifice built in 1964 by Kunio Maekawa. This 15-story building in Uchisaiwaicho was inaugurated to host the media during the 1964 Tokyo Olympics, becoming the headquarters of the Japanese press. With its 500-seat conference center, it has been the venue for official government press conferences since 1964. This site embodies the dissemination of information, a key component in crisis management and public opinion formation in the Kanto region.
Finally, your quest concludes in the East Garden of the Imperial Palace, opened to the public in 1968. These 210,000 m² are the remains of the old moats of Edo Castle, rebuilt in 1457. They house Japan's largest stone watchtower, Fujimi Yagura (1625, 15 meters high), and 7 historic gates restored after 1945. The Ninomae Pond, dug in 1636, has been home to swans since 1970. This serene place, where Kijūrō Shidehara promoted constitutional peace, offers a perspective on Tokyo's millennia-old history and the contrast between political power and imperial tranquility, concluding your exploration of modern Japan's heritage.
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?
Nuclear Disaster
Dive into the heart of the tragic events of Fukushima and their repercussions.
Journalistic Investigation
Search for clues and analyze facts to uncover the hidden truth.
Political Thriller
Unravel a cover-up conspiracy at the highest levels of government and industry.
The past is never dead. It's not even past.
In Tokyo, expose the hidden truth.
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.
Avis des aventuriers
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Your turn to play
Delve into the 72 hours that shook Japan, where state secrets and crucial decisions were made in the heart of Tokyo.
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
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Other escape games in Tokyo, Japan
See all games in Tokyo, Japan→More ideas for self-guided walking tours, scavenger hunts & city quests in the same city
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