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Uncover a Cold War espionage plot hidden within two rival fortresses. Decipher coded messages left by a double agent before the truth is erased forever.
📱 1 to 10 phones · 1 team per phone · Independent codes
It is 1989, the year the Berlin Wall falls
You are a CIA field operative, autumn 1989, deep within Soviet territory.
The Berlin Wall is falling, but here in Narva, on the frozen border between Estonia and Russia, another
Colonel Smirnov's secret code — 1940
« We built Ivangorod so that never again could an enemy cross the Narva. »— Ivan III of Russia, 1492
In 1492, Ivan III of Russia erected Ivangorod fortress facing the Teutonic Knights' Hermann castle. Separated by 150 meters of river, the two citadels embody five centuries of tensions between Russia and the West. Charles XII suffered a decisive defeat here against Peter the Great in 1700, marking the decline of the Swedish empire.
Under Soviet occupation (1940-1991), Narva became an industrial city populated by Russians. Even today, 95% of its inhabitants speak Russian. The border now divides the European Union and Russia, transforming this medieval city into a symbol of new geopolitical tensions between East and West.
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
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?
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Hermann (1256) and Ivangorod (1492) have confronted each other across the river for 530 years
8 clues hidden in the architecture to evade Moscow's surveillance
150 meters of river separating the European Union from the Russian Federation
Two empires, one river, one secret
On Europe's last frontier
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.
Soyez le premier à partager votre expérience.
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Uncover Colonel Smirnov's mystery and decipher the secret code carved into Narva's stones. Between the two fortresses that have confronted each other for 530 years, reconstruct the coordinates of the Baltic resistance before Moscow discovers your investigation.
1 purchase = 1 phone. Play several on the same device.
No calendar booking. Code sent immediately by email.
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More ideas for self-guided walking tours, scavenger hunts & city quests in the same city
More destinations, tours & urban treasure hunts across the country
Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.
Pour monter dans la tour Hermann évoquée à l'acte 5 et découvrir l'exposition sur les batailles de 1700 et 1944 mentionnées dans le code
Dans l'ancien Hôtel de Ville de l'acte 1, l'histoire de la communauté russe de Narva et les témoignages de l'époque soviétique du colonel Smirnov
Accès aux fortifications suédoises complètes avec les meurtrières du bastion Gloire étudiées à l'acte 2
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.