Harbin — The Archives of Silence
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Pingfang District, HarbinHarbin — The Archives of Silence
📍 Pingfang District, Harbin·🕐 2h30 – 3h·📍 ~3 km
Also available as:HistoricalMysterySpy thrillerSupernatural

Harbin — The Archives of Silence

Uncover the hidden Archives of Silence in Harbin's frozen streets. Decipher clues from Unit 731's atrocities, expose the buried secrets before they vanish forever.

📱 1 to 10 phones · 1 team per phone · Independent codes

Difficulty
·From age 14 years
Starting point :In front of the Museum of Evidences of Unit 731's Crimes

In the icy shadows of 1930s Harbin, Japanese forces established Unit 731, a clandestine bioweapons lab where unspeakable experiments claimed thousands of lives

8
stages
~3 km
route
2h30 – 3h
at your pace
🚶
walking

Harbin — The Archives of Silence

🎭Your Mission

You are a clandestine investigator for the War Crimes Tribunal, autumn 1945, tasked with compiling evidence in the heart of Pingfang District, within the former puppet state of Manchukuo

Delve into the cryptic layers of history in Harbin, where the walls of the past whisper the darkest secrets of Unit 731.

The story that haunts this land

Your quest begins in front of the Museum of Evidence of War Crimes by Unit 731, located in Pingfang District. This site, once the nerve center of operations from 1933 to 1945, is the starting point of your exploration. As an archivist, your first task is to grasp the scale of the complex, which was one of the Imperial Japanese Army's most secret. The very architecture of the place, with its remnants of 3-meter-high brick walls, gives you an insight into the efforts made to maintain secrecy around these facilities. Here, you will search for the first keys to unlock Harbin's archives of silence.

Continue your investigation by approaching the remains of the inner prison, a highly secured building whose cast-iron doors recall the isolation of its occupants. It was here, in May-June 1943, that a daring escape attempt took place. A prisoner managed to knock out a guard, freeing over 100 detainees into the inner courtyard. However, the fate of these souls was tragically sealed, all suffocating after chloropicrin gas was released. Your observation of the site will lead you to look for traces of this dramatic event, a poignant testimony to the conditions of the time in Manchukuo.

The route then takes you to examine the outer perimeter of the Unit 731 complex. Protected by a 3-meter-high brick wall and a dry ditch with electrified wire, this security system reveals the strategic importance and clandestine nature of the activities carried out here. As you move around these fortifications, you will collect clues about the logistics and surveillance methods used, crucial elements for understanding the isolation of this research center. The city of Harbin, and more broadly the Hokkaido region, bears the scars of this period.

Your exploration of the Unit 731 relics invites you to consider the global implications of this site. The work of Shiro Ishii, commander of Unit 731 from 1892 to 1959, is intrinsically linked to the history of this place. Although the site is not a traditional museum at every step, each remnant is a page of history. Through the ruins of laboratories and facilities, you perceive the extent of the research conducted there, a dark chapter for Heilongjiang province. Your mission as an archivist is to leave no stone unturned, from every brick, every piece of debris.

By the end of your journey in Harbin, you will have assembled fragments of a complex history, that of a secret research center that operated between 1933 and 1945. The evidence of Unit 731's crimes, inscribed in the landscape of Pingfang District, and the accounts of escape attempts, such as that in May-June 1943, will have allowed you to grasp a historical reality often obscured. This walking tour offers a unique perspective on Harbin's heritage and China's history, transforming a simple circuit into an immersive and memorable quest for truth.

1932
Establishment of Unit 731 by the Imperial Japanese Army in Pingfang.
1945
Dismantling of Unit 731 facilities by the retreating Japanese army.
1949
The Khabarovsk trials publicly reveal the extent of Unit 731's crimes, but many perpetrators escape justice.
Far more than an escape game

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.

🏛️
Hidden historical gems

At each stop, places ordinary guides miss — secret façades, sculpted crests, alleys steeped in history.

📜
Anecdotes & legends

Every riddle is rooted in a real historical fact or local legend. You leave with dozens of stories to tell.

🏗️
Architecture & heritage

Learn to read buildings — flamboyant Gothic, Baroque, Art Deco — like a real art historian, while having fun.

🚶‍♀️
Immersive wandering

Walk through the city like a novel's character — every alley becomes a stage, every square a theatre.

🎙️
Immersive audio narration

A voice walks with you at every step, tells the story of each place, reads clues, adds a cinematic feel.

📲
Yours forever

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?

🏛️
Outdoor escape game

Explore the city on foot solving puzzles based on real historical facts. No locked room — the city is your playground.

📱
On your smartphone

No app to download. Play directly from your browser. Guided step by step, at your own pace.

👨‍👩‍👧‍👦
Unlimited players

One purchase per phone is enough. Play with family, friends or as a couple — everyone participates.

🎯
Augmented reality

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.

🤖
AI that helps you

Stuck? Progressive personalised hints. The character repeats the puzzle on demand — at your own pace.

🗣️
32 languages

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

Saint Sophia Cathedral Museumoptional
20¥. Admire the Byzantine architecture and history of this former Russian Orthodox church, an iconic Harbin landmark.
Optionnel
/pers.
Siberian Tiger Parkoptional
100¥. Observe majestic Siberian tigers up close in a semi-natural environment, a unique experience in Hokkaido.
Optionnel
/pers.
Harbin Sausage Tastingoptional
Variable price. Taste the famous Harbin red sausage, a local specialty influenced by Russian cuisine.
Optionnel
/pers.
Stroll on Central Street (Zhongyang Dajie)optional
Free. Explore this historic street lined with European-style buildings, a testament to Harbin's cosmopolitan past.
Optionnel
/pers.
Budget if you do them all / pers.~0

The Route

8 stages through the city

The gameplay: AR, camera, hidden clues

📱Search clues with your cameraRA

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.

8
original puzzles
24
min of narration
🪙 24
TripCoins granted
16
GPS waypoints

How does it work with a group?

One phone = one team. Pick the number at checkout (1 to 10).

🧍
1 phone

Solo, or a group sharing the screen. One team, one code.

👥
2-3 phones

Family, couple, or 2-3 teams competing. Each phone has its own code and its own score.

👨‍👩‍👧‍👦
4 to 10 phones

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.
🕒No date to pick · Code valid 1 year · Play whenever you want

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

Starting point
In front of the Museum of Evidences of Unit 731's Crimes
Directions on Google Maps
🕐
Duration
2h30 – 3h
At your own pace
👥
Players
Unlimited
From age 14
📍
Distance
~3 km
Pingfang District
Accessibility
Partial
Unpaved areas and possible stairs
🌐
Languages
17 languages
Built-in translation

Why this route?

🕵️‍♀️

In-depth Historical Investigation

Delve into the dark and little-known details of one of the most controversial chapters of World War II.

📜

Commemorative Journey

Follow a path marked by sites of memory and silent testimonies, paying homage to the victims.

🔍

Archive Decryption

Gather clues to unlock a private diary, a privileged witness to the horrors of Unit 731.

May silence never be a victory.

The truth, however painful, must be revealed.

★ Innovation 2026

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

Soyez le premier à partager votre expérience.

Did you play les archives du silence? Check the email you received after your game to leave a verified review.

Your turn to play

Delve into the cryptic layers of history in Harbin, where the walls of the past whisper the darkest secrets of Unit 731.

12€
1 phone
23€
2 phones
33€
3 phones
42€
4 phones
50€
5 phones
56€
6 phones
62€
7 phones
68€
8 phones
74€
9 phones
80€
10 phones

1 purchase = 1 phone. Play several on the same device.

🕒No date to pick · Code valid 1 year · Play whenever you want
Get my code · 12€

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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