French Quarter — Yellow Fever Conspiracy
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French Quarter, New OrleansFrench Quarter — Yellow Fever Conspiracy
📍 French Quarter, New Orleans·🕐 2h30 – 3h·📍 ~3 km
Also available as:HistoricalMysterySupernaturalSpy thriller

French Quarter — Yellow Fever Conspiracy

Uncover the conspiracy behind the 1878 Yellow Fever epidemic that killed 5,000 in the French Quarter. Decode clues at haunted sites to reveal a forgotten remedy suppressed by shadowy doctors.

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

Difficulty
·From age 14 years
Starting point :Old Ursuline Convent Museum (Facade)

In 1878, the French Quarter became a graveyard as Yellow Fever swept through, claiming over 5,000 lives in a merciless wave of death

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

French Quarter — Yellow Fever Conspiracy

🎭Your Mission

You are Louis Joseph Dufilho Jr.

, a certified apothecary and the first licensed pharmacist in the United States, in late 19th-century New Orleans. Your mission: uncover the mystery of the

Dive into the heart of New Orleans' French Quarter and unmask the dark secrets surrounding the yellow fever epidemics that ravaged the city.

« Virtue grows under the weight of adversity »
Official motto of the city of New Orleans

The story that haunts this land

Your investigation begins in front of the Old Ursuline Convent Museum, a National Historic Landmark built between 1750 and 1752. This was the first brick building in the upper Mississippi region and was occupied by the Ursuline Sisters from 1727 to 1834. It was here, in the shadow of this convent, that the first victims of yellow fever were recorded during the 1796 epidemic, which claimed the lives of 600 residents of New Orleans. As an apothecary, you examine the archives and testimonies of the time, searching for clues about the early sanitary measures.

A short walk, 0.6 km away, brings you to the Gallier House at 1118-1132 Royal Street. Built in 1857 by architect James Gallier Jr. in a Greek Revival style, this house was inhabited by his family until 1907. It is now restored as a museum with 85% of its original objects. It was in this setting that the terrible yellow fever epidemic of 1853 caused over 8,000 deaths in New Orleans. You search for traces of the remedies of the time and the desperate efforts to contain the disease, observing the objects and furniture that lived through this period.

Your journey then leads you to The Cabildo, a Spanish colonial edifice built between 1795 and 1799, located in Jackson Square, 0.4 km from the convent. This building, which served as the seat of the Spanish government and the site of the Louisiana Purchase signing in 1803, also functioned as the Louisiana Supreme Court until 1853. The 1796 epidemic raged during its construction, leaving an indelible mark on the city. As Dufilho, you examine the official documents drafted there, seeking sanitary decrees or medical reports that might have escaped history.

The New Orleans Pharmacy Museum, at 514 Chartres Street, 0.3 km away, is a crucial stop. Built in 1823 by Louis J. Dufilho Jr., it was the first licensed pharmacy in the United States. This National Historic Landmark contains 19th-century medical artifacts, including treatments used against yellow fever. Here you find the instruments of your own profession, preparations, and remedies that reflect the knowledge of the era. The epidemics from 1817 to 1905 were a constant challenge for apothecaries like you, whose role was central in the fight against the disease.

Your quest concludes by walking along Royal Street, one of the main thoroughfares of the French Quarter, paved since the 1830s. This street, which runs through the entire route, was a historic commercial center where local trade was severely impacted by yellow fever in the 19th century. You conclude your investigation by observing how the city's motto, "Crescit sub pondere virtus" (Virtue grows under the weight of adversity), takes on its full meaning in the face of the resilience of New Orleans' inhabitants. You have thus explored the city's iconic sites, from St. Louis Cemetery No. 1 where Marie Laveau is buried, to the neighborhoods where quarantines were imposed, offering a unique perspective on Louisiana's heritage and the medical challenges of its history.

1817
First major documented yellow fever epidemic in New Orleans.
1853
One of the worst yellow fever epidemics, causing thousands of deaths and leaving a lasting impact.
1881
Carlos Finlay proposes the theory of yellow fever transmission by mosquitoes, later confirmed.
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

Visit the Old Ursuline Convent Museumoptional
€10. Explore this 1750-1752 National Historic Landmark, the oldest brick building in the upper Mississippi, housing a museum on New Orleans' colonial history.
Optionnel
/pers.
New Orleans Pharmacy Museumoptional
€5. Discover the first licensed pharmacy in the US, built in 1823 by Louis J. Dufilho Jr., and its 19th-century medical artifacts, including yellow fever treatments.
Optionnel
/pers.
Beignet Tasting at Café Du Mondeoptional
€5-10. Savor iconic beignets and chicory coffee at one of New Orleans' most historic establishments, open since 1862, facing Jackson Square.
Optionnel
/pers.
Guided Tour of St. Louis Cemetery No. 1optional
€20-25. Explore New Orleans' oldest cemetery (opened 1789), burial site of Marie Laveau and many yellow fever victims, with its unique 'oven vaults' tombs.
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
Old Ursuline Convent Museum (Facade)
Directions on Google Maps
🕐
Duration
2h30 – 3h
At your own pace
👥
Players
Unlimited
From age 14
📍
Distance
~3 km
French Quarter
Accessibility
Full
Flat route and wide sidewalks
🌐
Languages
17 languages
Built-in translation

Why this route?

🔬

Medical Investigation

Reconstruct the observations and research of a disappeared doctor, in pursuit of the ultimate yellow fever cure.

💀

Shadow of the Epidemic

Experience the atmosphere of a city under the grip of a mysterious disease and the hope of an unexpected cure.

📜

Intertwined Knowledge

Untangle the threads between traditional medicine, herbalism, and Voodoo practices in the quest for a forgotten truth.

Between the remedy of science and the ritual of the spirit, lies the truth.

The key to defeating the plague lies in a forgotten past.

★ 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

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Your turn to play

Dive into the heart of New Orleans' French Quarter and unmask the dark secrets surrounding the yellow fever epidemics that ravaged the city.

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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