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Uncover the hidden Cold War spy network that operated from Geneva's shadows. Decode clues from Reformation-era sites to expose traitors and reclaim a lost microfilm before it's gone forever.
📱 1 to 10 phones · 1 team per phone · Independent codes
In the tense shadows of the Cold War, Geneva's Bastions Park became the nerve center of a clandestine spy network known as 'The Shadow Network
You are a contemporary investigator, entrusted with deciphering the forgotten legacy of John Calvin in present-day Geneva.
Your mission: uncover hidden messages woven into Geneva's heritage, from ancient bastions
Delve into the layers of a millennial Geneva, where reformers forged history and monuments narrate struggles for peace.
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.
At each stop, places ordinary guides miss — secret façades, sculpted crests, alleys steeped in history.
Every riddle is rooted in a real historical fact or local legend. You leave with dozens of stories to tell.
Learn to read buildings — flamboyant Gothic, Baroque, Art Deco — like a real art historian, while having fun.
Walk through the city like a novel's character — every alley becomes a stage, every square a theatre.
A voice walks with you at every step, tells the story of each place, reads clues, adds a cinematic feel.
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. »
Explore the city on foot solving puzzles based on real historical facts. No locked room — the city is your playground.
No app to download. Play directly from your browser. Guided step by step, at your own pace.
One purchase per phone is enough. Play with family, friends or as a couple — everyone participates.
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.
Stuck? Progressive personalised hints. The character repeats the puzzle on demand — at your own pace.
French, English, German, Spanish, Italian + 27 other languages auto-translated by AI.
Places tied to your adventure — optional entries, totally up to you · per person
« Post Tenebras Lux »— Inscription on the Reformation Wall, Parc des Bastions, Geneva (1909)
Your journey begins at Place des Nations, facing the Broken Chair. This monumental 5.5-meter-high sculpture, installed in 1997 by Swiss artist Daniel Berset, not only symbolizes victims of anti-personnel mines. Its intentionally broken leg represents mutilations, an echo of conflicts that have marked Geneva's history and ongoing efforts for peace. It was a gift from the International Campaign to Ban Landmines, and its presence in front of the Palais des Nations sets the tone for your quest: to understand how Geneva, the city of the Reformation, became a global center for diplomacy.
A short walk away, the Palais des Nations stands, imposing. Built between 1929 and 1937 as the seat of the League of Nations, it has housed the UN since 1946. This building, the largest UN structure at 35,000 m², has seen key figures in world diplomacy pass through its doors. As you walk its perimeter, you imagine the debates of the General Assembly and the Human Rights Council, institutions which, like the reformers, sought to define new world orders. The Assembly Hall, with its 2,300 seats, contains the world's largest oil painting, created in 1936, an artistic testament to this quest for consensus.
Your route then leads you to the Parc des Bastions, created in 1886 on the former 16th-century fortified bastions. Here stands the Reformation Wall, inaugurated in 1909. This 100-meter-long, 9-meter-high monument depicts major figures of the Reformation, such as Guillaume Farel (1489-1565), John Calvin (1509-1564), Théodore de Bèze (1519-1605), and John Knox (1514-1572). On the ground, a 1909 sundial marks the passage of time, while the 5-meter-high central flame, lit during commemorative events, symbolizes the persistence of their ideas. The park also hosts Europe's largest outdoor giant chess games, installed in the 1950s, linking the intellectualism of the reformers to popular entertainment.
Continuing your exploration of Geneva, you cross the Pont du Mont-Blanc, the first bridge over the Rhône, built in 1609 by Giovanni Giacomo Billozza and rebuilt in 1901 after floods. Named after the alpine peak visible on clear days, it was the first to be electrically lit in 1890. It connects the left bank to the right bank near the Horloge Fleurie (Flower Clock), a masterpiece of floral clockmaking created in 1955. These two sites, though distinct from the themes of the Reformation and human rights, embody Swiss ingenuity and precision, qualities that Geneva's pioneers often put at the service of their ideals.
Your path concludes at St. Pierre Cathedral, whose main construction was completed around 1284 on a Christian site active since the 4th century. It was here that John Calvin preached daily from 1536 to 1564, making this place an epicenter of the Reformation. Climbing the 73-meter-high south tower, classified as a Swiss historical monument, you embrace a panoramic view of Geneva, from Place du Bourg-de-Four, the city's oldest square, to the lake. Archaeological remains reveal a 5th-century crypt and 6th-century Merovingian mosaics, anchoring Geneva's history in a millennial continuity. This journey will have allowed you to link the past of the Reformation to Geneva's contemporary commitments, a city of "Post Tenebras Lux".
8 stages through the city
The gameplay: AR, camera, hidden clues
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.
One phone = one team. Pick the number at checkout (1 to 10).
Solo, or a group sharing the screen. One team, one code.
Family, couple, or 2-3 teams competing. Each phone has its own code and its own score.
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.
Ready to live this adventure?
Get my code · 12€No calendar booking. Code sent immediately by email.
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Dive into the backstage of international negotiations where appearances are deceiving.
Identify traitors and hidden loyalties in a world of subterfuge.
Discover how Swiss neutrality was a major asset for secret services.
Peace is just a prelude to the next confrontation.
Unravel the threads of the spy network before it's too late.
OddballTrip combines gamified play, augmented reality and AI. All our competitors deliver 1 or 2 of these angles. We deliver all 5.
A golden chest floats in front of the monument. Tap → opening animation → reveals a secret message.
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.
At the puzzle climax, golden letters magically write themselves on the real wall — that's the puzzle answer. An unforgettable visual effect.
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.
A mini-radar shows the target even behind you, and the phone vibrates when you aim in the right direction.
Every puzzle weaves in real historical facts (architecture, era, anecdotes). You learn by playing — like a gamified audioguide.
3 levels of AI-generated help: vibe → where to look → answer format. You're never stuck.
At the end of the game, capture a selfie with OddballTrip banner + mascot, shareable on Instagram, TikTok.
PWA technology: open the link, it plays in your browser. Same quality as an app, no App Store hassle.
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.
GPS yes (handled by your phone). Maps yes (tiles cached). AI and hints need an intermittent 4G connection.
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.
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).
From 12 without an adult, from 6 with an adult reading puzzles. Works for families, couples, friend groups, companies.
Pre-register or contact us — we'll email you as soon as your city is live.
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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Delve into the layers of a millennial Geneva, where reformers forged history and monuments narrate struggles for peace.
1 purchase = 1 phone. Play several on the same device.
No calendar booking. Code sent immediately by email.
🔒Secure payment · Code in 5 min · Free cancellation
🪙+24 TripCoins granted with your booking
More ideas for self-guided walking tours, scavenger hunts & city quests in the same city

Decode the secret alphabet Rousseau hid across Geneva's Old Town before his manifesto burned. Uncover the cipher that could rewrite Enlightenment history.

Uncover the secret manuscript hidden during the stormy night at Villa Diodati when Frankenstein was born. Decode clues across Cologny to expose the truth before it's lost forever.

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.

Uncover the hidden archives of the League of Nations buried in Geneva's cellars. Decode a forgotten protocol that could rewrite interwar history before it's lost forever.

Geneva, 1553: Uncover the Consistory's secret trial. Decode clues from Reformation landmarks to expose a forbidden manuscript and save a heretic's life before the shadows claim another victim.

Uncover the conspiracy that silenced Henry Dunant, founder of the Red Cross, after his bankruptcy scandal. Decode clues across Geneva's historic heart to expose the betrayal that drove him into exile.
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Between lake and mountains, the pearl of the Swiss Jura.
UNESCO watchmaking city, between art and precision
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Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.
Gratuit (collections permanentes). Découvrez les collections allant de l'archéologie à l'art moderne, incluant des œuvres liées à l'histoire de Genève.
Environ 25-40 CHF par personne. Savourez une fondue traditionnelle dans l'un des restaurants historiques du Bourg-de-Four, comme 'Les Armures'.
À partir de 15 CHF. Profitez d'une perspective différente sur Genève et les Alpes en naviguant sur les eaux du Lac Léman, avec des départs fréquents depuis le Quai Gustave-Ador.
13€. Explorez l'histoire de la Réforme protestante et son impact sur Genève et le monde, à travers des expositions interactives et des documents historiques.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.