Sion — The Executioner's Code
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Sion Old TownSion — The Executioner's Code
📍 Sion Old Town·🕐 2h – 2h30·📍 ~2 km
Also available as:HistoricalMysterySupernatural

Sion — The Executioner's Code

1428: In the shadow of pyres, a tormented executioner hides a secret code exposing judicial manipulations and sacrificed innocents. Decipher his clues across the old town to uncover the forgotten truth.

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

Difficulty
·From age 12 years
Starting point :Place du Midi, Sion

Sion, 1428

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

Sion — The Executioner's Code

🎭Your Mission

You are Master Jean de Monthey, clerk and archivist to Bishop Walter Supersaxo in Sion, moments after the pyre of Pierre de Torrenté, Sion's last sorcerer, has died out

Dive into 1475 Sion's alleys, where the breath of a heretical conspiracy threatens to tear apart Valais and shake episcopal power.

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

Valais History Museumoptional
12 CHF. Explore Valais' history, from prehistory to the present day, with collections on the bishopric and wars of independence.
Optionnel
/pers.
Tourbillon Castleoptional
Free access. Admire the imposing ruins of the former episcopal residence, offering panoramic views of Sion and the Rhône valley.
Optionnel
/pers.
Valais Wine Tastingoptional
From 20 CHF. Discover the region's iconic grape varieties, like Petite Arvine or Cornalin, in a local Sion winery.
Optionnel
/pers.
The Bisses of Clavauoptional
Free access. Walk along these ancient hillside irrigation channels, offering a refreshing stroll and views of the Valais vineyards.
Optionnel
/pers.
Budget if you do them all / pers.~0
« Sion is an essential stopping place for all who wish to learn about the antiquities of this country. »
Jean-Barthélemy Gaillard, 'Picturesque Journey through Switzerland', 1789

The story that haunts this land

The Executioner's Code investigation begins at the Remparts de Sion, remnants of the medieval wall that protected the city from the 13th century. In 1475, these walls witnessed the city resist assaults from the Bernese and Savoyards, marking a period of great instability. It is here that Pierre de Torrenté, before his capture, allegedly concealed the first elements of his code, hastily carved into the stone. Your role is to scrutinize these fortifications to uncover forgotten symbols, essential clues to understanding the extent of the conspiracy threatening the stability of Valais.

Your journey takes you to the Tour de la Vidomne, a 14th-century guard tower that served as a prison and place of judgment. This building, closely linked to episcopal justice, was the scene of numerous heresy and witchcraft trials, culminating in the Valais witch trials of the 15th century. Pierre de Torrenté was certainly interrogated here. By examining the dark walls of this tower, you search for marks, scratches, or coded messages the prisoner might have left, clues that could shed light on the true nature of his accusations and the complicity of Sion's elites.

Place de la Planta, Sion's beating heart since the Middle Ages, is your next stop. This is where the great assemblies of Valais were held, and where, in 1475, Pierre de Torrenté's condemnation was proclaimed before the crowd. Markets and popular festivals coexisted with public executions, symbolizing the power of the Bishop of Sion. Among the patrician houses surrounding it, you must identify the residences of the notables linked to the case, their coats of arms, and their construction dates, to reconstruct the alliances and rivalries that may have influenced the trial and the city's future.

Following Rue du Grand-Pont, you head towards Place des Prisons, a place that still bears the weight of Sion's judicial history. In the 15th century, this street was a bustling commercial artery, but it also led to the dungeons where the accused awaited their fate. Contemporary writings describe justice that was often swift. Here, you must decipher the hidden messages in the architecture of the old buildings on Place des Prisons, searching for evidence that the Torrenté affair was merely a facade to mask a deeper power struggle within Valais. The nearby Église Saint-Théodule offers a striking contrast to these places of repression.

Your quest leads you to Passage Supersaxo and the Chemin de Croix in Valère, sites that illustrate Sion's devotion and sacred art. Passage Supersaxo, with its 16th-century architectural details, testifies to the episcopal family's influence on the city. The Chemin de Croix, leading to the Valère Basilica, is a centuries-old pilgrimage site. It is in these places of faith, where popular piety mixes with symbols of power, that you must assemble the final pieces of the puzzle. By observing the sculptures and frescoes, you discover how Torrenté's code fits into a broader history of resistance and secrecy, revealing the complexity of power in medieval Valais and the legacy left by these 15th-century events. This exploration of Sion offers you an understanding of Valaisan heritage beyond the beaten path.

1428
Start of major witch trials in Valais, swift justice facing fear.
1436
The chronicler Johannes Fründ describes the Valais trials, documenting their scale and brutality.
1475
Drafting of the Valais text 'De Lamiis' (Of Witches), formalizing accusations and procedures.

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 du Midi, Sion
Directions on Google Maps
🕐
Duration
2h – 2h30
At your own pace
👥
Players
Unlimited
From age 12
📍
Distance
~2 km
Sion Old Town
Accessibility
Partial
Easier path, some cobblestones
🌐
Languages
17 languages
Built-in translation

Why this route?

🗝️

The hidden notebook

Unravel the secrets of an executioner torn between duty and conscience, revealing his deep doubts.

🕊️

Silent justice

Identify symbols of resistance and truth hidden in the old town, witnesses to a quest.

⚔️

Valais under tension

Explore a dark period where fear and power clashed, marking the history of Valais.

The past whispers its secrets to those who know how to listen.

Decipher the executioner's message and bring justice to the forgotten of 1428.

★ 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.

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Your turn to play

Dive into 1475 Sion's alleys, where the breath of a heretical conspiracy threatens to tear apart Valais and shake episcopal power.

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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