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Uncover the dark conspiracy behind Grenoble's demolished monuments. Decipher coded messages left by resistance fighters to expose a buried truth about occupation, erasure, and political vengeance.
📱 1 to 10 phones · 1 team per phone · Independent codes
July 1888: A towering monument to Léon Gambetta, the architect of the Third Republic's defense, was unveiled in Paris
You are a clandestine Resistance archivist, deep in occupied Grenoble in 1943.
Your secret mission is to reconstruct the history of the vanished monuments of Boulevard Gambetta, before oblivion
Delve into the shadows of Grenoble, where bronze statues melted during the Occupation, leaving behind specters of memory.
Your quest for the vanished statues begins in Grenoble, at Place Saint-André. This medieval square, named after the Saint-André church built between the 13th and 16th centuries, was the seat of the Dauphiné parliament until 1790. It is here, 400 meters from Boulevard Gambetta, that republican ceremonies were held during the Third Republic, celebrating the values that the Occupation would soon threaten. The echoes of these gatherings still resonate, contrasting with the silence imposed by the Vichy regime and the gradual disappearance of national symbols in the city of Auvergne-Rhône-Alpes.
A short walk away, the Isère Resistance and Deportation Museum, opened in 1960 on Rue Hébert, plunges you into the heart of local heroism in the face of oppression. This site, although post-dating the events of the statue melting, is an essential anchor point for understanding the context. It houses the testimonies of those who, like the Resistance fighters who saved the equestrian statue of Lesdiguières in 1941-1943, fought to preserve French memory and identity. It is in this spirit of preservation that your mission takes on its full meaning, through the history of Grenoble.
Continue towards the Marius Gontard Bridge, built in 1973, which spans the Isère and connects Boulevard Gambetta to the quays. Named in honor of Marius Gontard, Mayor of Grenoble from 1957 to 1973, this bridge symbolizes reconstruction and renewal after the war years. Ironically, it follows the era of Paul Cocat, Mayor of Grenoble from 1941 to 1943, who had to comply with Vichy's directives concerning the melting of artworks. The bridge offers you a perspective on the city's urban evolution, a modern pedestrian axis crossing the hyper-center district, about 1 km from Place de Verdun.
Place Grenette, a former herb market and the historic heart of Grenoble, takes you back to the city's origins. Near Boulevard Gambetta, this square was the scene of public executions before their transfer to the gallows of the Porte de France in the mid-16th century. It is a place that has witnessed eras and dramas, a reminder of the fragility of collective memory. Less than 500 meters from Boulevard Gambetta, it constitutes an essential landmark for your investigation into Grenoble's heritage.
Your journey concludes at Place de Verdun, a former parade ground transformed into a square in 1869. It was here that the equestrian statue of Lesdiguières was installed in 1856, and miraculously saved from melting under Vichy by Resistance fighters in 1941-1943. Surrounded by planted promenades bordering Boulevard Gambetta, this square is a symbol of resilience. The Jardin de Ville, with its Tritons fountain by Henri Ding partially spared in 1942, testifies to the desire to preserve art and history. This circuit will have allowed you to grasp the extent of the losses, but also the strength of Grenoble's collective memory in the face of oblivion, a true historical monument and republican heritage in Auvergne-Rhône-Alpes.
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.
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.
Places tied to your adventure — optional entries, totally up to you · per person
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.
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Explore haunted places and uncover the mysteries of World War II spirits.
Untangle facts and legends surrounding Gestapo atrocities in Grenoble.
Your quest might bring eternal peace to the victims of the past.
The echoes of the past await your courage.
In Grenoble, history never quite sleeps.
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.
You arrive in Grenoble City Center, France, open the link on your phone, the story starts. It's the modern outdoor escape game: audio narration, camera puzzles, final code unlocked as a team. No install. No need to book a time slot.
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.
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.
Spring and autumn are the best seasons: mild temperatures, fewer tourists, gorgeous light. Summer is also great but go for early morning before 11 or late afternoon. Winter is perfectly playable, especially in southern cities — Grenoble City Center, France often feels more authentic then.
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Delve into the shadows of Grenoble, where bronze statues melted during the Occupation, leaving behind specters of memory.
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
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Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.
Gratuit. Découvrez les ruelles pittoresques et les vestiges gallo-romains de ce quartier historique, sur la rive droite de l'Isère, non loin du Pont Marius Gontard.

12€. Explorez les collections d'art ancien et moderne qui ont traversé les époques, à quelques minutes à pied du centre historique de Grenoble.
9€. Montez au fort de la Bastille pour une vue panoramique sur Grenoble et les Alpes, un point stratégique défensif depuis le XIXe siècle.
Gratuit. Visitez un marché local pour goûter la célèbre noix de Grenoble, produit emblématique de l'Isère, souvent vendue sur les marchés du centre-ville.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.