Verdun — Shadow of the Seven Unknowns
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Douaumont, VerdunVerdun — Shadow of the Seven Unknowns
📍 Douaumont, Verdun·🕐 5h – 8h·📍 ~40-60 km en voiture
🚗Roadtrip · Car needed
Also available as:HistoricalSupernaturalMystery

Verdun — Shadow of the Seven Unknowns

Uncover the enigma of the Seven Unknown Soldiers at Verdun's Faubourg-Pavé. Decode clues from the 1920 ceremony to reveal a hidden conspiracy that doomed them to obscurity while one was chosen for glory.

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

Difficulty
·From age 12 years
Starting point :Douaumont Ossuary

In November 1920, amid the scars of the Great War, Verdun's underground citadel hosted a fateful ceremony

2–4
days at your pace
🚗
car · 5-30 km between sites

Verdun — Shadow of the Seven Unknowns

🎭Your Mission

You are Philippe Pétain, Marshal of France, in Verdun, tasked with honoring the memory of soldiers who fell during the battle.

You begin your exploration of the Remembrance Trail at the Douaumont Oss

Immerse yourself in the heart of the 1916 Battle of Verdun, where the fate of France was sealed amidst the roar of shells and silent heroism.

« They shall not pass! »
General Robert Nivelle, Order of the Day, April 24, 1916, during the Battle of Verdun

The story that haunts this land

Your journey begins in Verdun, at the Douaumont Ossuary, a monumental edifice built between 1920 and 1932. It houses the remains of 130,000 unknown French and German soldiers, silent witnesses to the Battle of Verdun (1916). 240 meters long, this classified site overlooks the national necropolis and was inaugurated on August 7, 1932, by President Paul Doumer, in the presence of Marshal Pétain. It even contains the remains of the unknown French soldier, buried under the Arc de Triomphe in Paris in 1921, a symbol of national unity regained after hardship.

Nearby, the Douaumont National Necropolis spans 15 hectares. Created in 1920, it is marked by 16,142 crosses of French soldiers who fell during the Battle of Verdun, from February to December 1916. Designed by architect Jacques Gréber, it was classified as a Historic Monument in 1924. This vast field of crosses, where soldiers from all French departments rest, embodies the sacrifice and unity of the nation in the face of adversity, a poignant testimony to the First World War.

Your path then leads you to Fort Douaumont, a major fortification of the Séré de Rivières system, built between 1885 and 1913. This fort, covering an area of 30,000 m² and equipped with 4 artillery turrets of 75 mm, was captured by the Germans on February 25, 1916, without a fight, then recaptured by the French on October 24, 1916. It was the scene of intense underground fighting in October 1916, causing 800 deaths in its galleries, marking one of the darkest pages of the Battle of Verdun. Nearby, the Monument to the Children of the Meuse, erected in 1936 by sculptor Émile Sulpice, pays tribute to the 73,000 inhabitants of the Meuse affected by the war, a WWI soldier from the Meuse protecting a child.

Continue towards the Verdun Memorial, home to the Bayonet Trench, a monument erected in 1920. It commemorates the 57 French soldiers of the 137th Infantry Regiment buried alive during the explosion of June 12, 1916, a symbol of heroic resistance. The inscription 'See what courage they showed here' engraved on the monument, designed by architect André Ventre, still resonates. In Fleury-devant-Douaumont, one of the 9 French villages 'dead for France', the Saint-Nicolas Chapel, rebuilt in 1927-1929, incorporates 420 mm German shells into its structure, remnants of the massive bombardments of 1916.

By completing this remembrance circuit in Verdun, you will have explored emblematic sites of the First World War, from necropolises to forts, including war memorials. Each step will have immersed you in the history of the Battle of Verdun 1916, allowing you to understand the extent of the sacrifices and the resilience of the Grand-Est. This interactive visit is a unique opportunity to connect with the past and pay tribute to those who shaped our history, an unforgettable journey for any family looking for things to do in Verdun for an immersive visit.

1916
Battle of Verdun: The carnage and the birth of the anonymous.
1920
Ossuary Inauguration: First steps towards collective memory.
1932
Ossuary Completion: A monument for the 130,000 unknowns.

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.

📵
Playable offline

The game downloads to your phone on start. Once the "✓ Downloaded" indicator appears, everything works without data — narration, AR, GPS and puzzles. Perfect abroad without a data plan.

🎟️

Want to go deeper?

Places tied to your adventure — optional entries, totally up to you · per person

Visit the World Centre for Peace, Liberty and Human Rightsoptional
€12. Explore exhibitions on conflicts and peace-building in Verdun's former episcopal palace.
Optionnel
/pers.
Princerie Museum, Verdunoptional
€6. Discover Verdun's local history and art and archaeology collections in a 16th-century mansion.
Optionnel
/pers.
Tasting of Verdun dragées (candied almonds)optional
From €5. Taste this traditional Verdun confectionery, whose history dates back to 1220 and was offered at royal baptisms.
Optionnel
/pers.
Visit the Haudainville Quarriesoptional
€10. Explore ancient stone quarries used as underground shelters and hospitals during WWI, near Verdun.
Optionnel
/pers.
Budget if you do them all / pers.~0

The Route

5-10 curated sites across the territory

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 · 14,90€

No calendar booking. Code sent immediately by email.

🔒 Secure payment · Code in 5 min · Free cancellation

Practical info

Starting point
Douaumont Ossuary
Directions on Google Maps
🕐
Duration
2h30 – 3h
At your own pace
👥
Players
Unlimited
From age 12
📍
Distance
~3 km
Around Douaumont
Accessibility
Partial
Forest paths, uneven terrain
🌐
Languages
17 languages
Built-in translation

Why this route?

📜

Chaplain's Accounts

Delve into the intimate notebooks of Father Gélis, a privileged witness to the battle and builder of memory.

🕊️

Symbols of Peace

Discover how the horror of war gave rise to places of remembrance and gestures of appeasement.

🔍

Memorial Riddles

Decipher codes hidden in the architecture and monuments, guardians of the memory of the anonymous.

War creates anonymous victims. Memory, brothers.

Find the hope of a name for every lost soul.

★ 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

Q01What's the difference with a regular indoor escape room?

Outdoor escape game format: no physical locks, no actor, no fixed time slot. You start when you want, progress through Douaumont, Verdun with your phone, and the city itself is the set. More immersive on local history, more flexible in pace.

Q02Can we take a break mid-trail?

Of course. Stop at a café, have lunch, resume later: your progress is saved. Many players bake a meal break into the trail, especially with families.

Q03Do we need to be several people to enjoy it?

No, solo works very well. The outdoor escape game format in self-guided mode leaves room for introspection: read the story at your pace, hunt clues like a detective. 2-6 players is more social, solo is more contemplative.

Q04Is Verdun — Shadow of the Seven Unknowns stroller-accessible?

Depends on the exact route in Douaumont, Verdun. The vast majority of stops are downtown, on sidewalks or squares. If a stair or narrow passage is involved, it's flagged on the product page. Generally: yes, doable with a standard urban stroller.

Avis des aventuriers

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Your turn to play

Immerse yourself in the heart of the 1916 Battle of Verdun, where the fate of France was sealed amidst the roar of shells and silent heroism.

14,90€
1 phone
28,60€
2 phones
41€
3 phones
52,20€
4 phones
62,10€
5 phones
69,50€
6 phones
77€
7 phones
84,40€
8 phones
91,90€
9 phones
99,30€
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 · 14,90€

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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