Champel — Servetus' Forbidden Secret
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From Old Town to ChampelChampel — Servetus' Forbidden Secret
📍 From Old Town to Champel·🕐 2h30 – 3h·📍 ~3 km
Also available as:HistoricalMysterySupernaturalSpy thrillerRomance

Champel — Servetus' Forbidden Secret

1553: Uncover the hidden code in Michel Servetus' final breath, smuggled out before his execution at Champel. Decode the heretic's forbidden truth that defied Calvin and shook Geneva forever.

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

Difficulty
·From age 14 years
Starting point :Place Longemalle

October 27, 1553: Amid the flames on Champel's hill, Spanish theologian Michel Servetus whispered a final, forbidden secret to a trusted witness—a cryptic code challenging the Trinity doctrine and exp

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

Champel — Servetus' Forbidden Secret

🎭Your Mission

You are a Consistory archivist in 1553 Geneva, tasked with reconstructing the events that sealed Michel Servet's fate.

Your mission takes you from Place Longemalle

Dive into the heart of Geneva, following the footsteps of a Reformation secret and a dearly bought freedom in the 16th century.

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

International Museum of the Reformationoptional
13 CHF. Explore the history of Genevan Protestantism and its global influence, located next to Saint-Pierre Cathedral.
Optionnel
/pers.
Maison Taveloptional
Free. Geneva's oldest private house, offering insight into medieval daily life and the city's evolution.
Optionnel
/pers.
Genevan Fondue Tastingoptional
Around 30-40 CHF. Enjoy a traditional fondue in an Old Town restaurant, an authentic local culinary experience.
Optionnel
/pers.
Lake Geneva Cruiseoptional
Around 20-35 CHF. Admire Geneva and the Alps from the lake, with stunning views of the Jet d'Eau and the Swiss shores.
Optionnel
/pers.
Budget if you do them all / pers.~0
« Freedom of conscience and freedom of thought »
Implicit motto of Geneva post-1908 (Servet's repentance)

The story that haunts this land

Your investigation begins at Place Longemalle, a historic crossroads in downtown Geneva. This square, located on the edge of the Old Town and close to the Champel district, offers direct access to medieval streets. From there, you reach Saint-Pierre Cathedral, whose construction began around 1160 and was completed in the 16th century. Its main facade, built between 1535 and 1560 in a late Gothic and Renaissance style, was the setting for Jean Calvin's sermons from 1541. Calvin's historic pulpit, still preserved, is a central point in Geneva's religious history.

Continue your journey along Rue Calvin, a historic street named in homage to the reformer (1509-1564). This street runs along the old buildings of the Consistory and Reformed institutions, leading you directly to Cour Saint-Pierre. This medieval inner courtyard, adjacent to Saint-Pierre Cathedral and dating from the 12th-16th centuries, was the historic seat of the Cathedral Chapter before becoming that of the Reformed Consistory from 1541. Its Gothic arcades are preserved, and an underground archaeological museum, resulting from 19th-century excavations, is accessible, revealing the layers of Geneva's history.

Next, cross the Pont de l'Île, a medieval structure from the 12th century, rebuilt in the 18th century after significant damage, connecting the Old Town to the Île de la Cité. This bridge was a strategic crossing point between the Champel districts and the administrative heart of Geneva. Your route then takes you to Parc des Bastions, created in 1880 on Geneva's old ramparts. This 14-hectare park houses the Reformation Wall, a 100-meter-long monument erected between 1909 and 1917, commemorating Jean Calvin (1509-1564), Guillaume Farel (1489-1565), Théodore de Bèze (1519-1605), and John Knox (1514-1572).

Parc des Bastions, a major tourist promenade area, is adjacent to the Geneva Library and the Rath Museum. It is a place where the Reformation heritage is strongly manifested. Your quest then leads you to the Champel district, an old residential area of the Protestant bourgeoisie, known for its picturesque streets and 16th-18th century residences. It was in this historic southern district of Geneva that Michel Servet's execution took place in 1553, an event that profoundly marked Geneva's history.

Your itinerary culminates at the Michel Servet Expiatory Monument, erected in 1908 in Champel, near the presumed site of his burning. This monument bears the inscription 'In memory of Michel Servet, burned as a heretic on October 27, 1553,' acknowledging the historical error of the Geneva Consistory and marking an official repentance by the Reformed Church. Michel Servet (1509-1553), a physician, theologian, and discoverer of pulmonary circulation, was executed for anti-Trinitarian heresy. This Swiss historical site allows you to understand the complexity of Geneva's history and the evolution of Reformed thought, offering a perspective on the values of 'Freedom of conscience and freedom of thought' that emerged after this episode. It's a Geneva visit that illuminates the past to better understand the present.

1532
Michael Servetus publishes De Trinitatis Erroribus, his first work questioning the Trinity.
1553 (Janvier)
Servetus secretly publishes Christianismi Restitutio, the work that would lead to his condemnation.
1553 (Octobre)
Michael Servetus is executed in Champel for heresy, marking a turning point in the history of tolerance.

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
Place Longemalle
Directions on Google Maps
🕐
Duration
2h30 – 3h
At your own pace
👥
Players
Unlimited
From age 14
📍
Distance
~3 km
Old Town and Champel
Accessibility
Partial
Cobblestone streets, slopes and park
🌐
Languages
17 languages
Built-in translation

Why this route?

🕊️

Quest for truth

Reconstruct the posthumous message of a persecuted thinker.

🧠

Intellectual clash

Understand the theological and philosophical stakes of the 16th century.

🕯️

Memory of the stake

Explore the emblematic sites linked to the tragic fate of Michael Servetus.

The light of reason never truly fades.

Liberate a legacy sealed by flames.

★ 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 le souffle interdit de servet? Check the email you received after your game to leave a verified review.

Your turn to play

Dive into the heart of Geneva, following the footsteps of a Reformation secret and a dearly bought freedom in the 16th century.

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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