🕒 No date to pick · Code valid 1 year · Play whenever you want
Get my code
Decipher the hidden ledgers and coded messages that reveal how Rockefeller orchestrated Cleveland's oil monopoly—and the ruthless tactics he buried beneath Public Square.
📱 1 to 10 phones · 1 team per phone · Independent codes
In the 1870s, John D
You are a private investigator, hired in Cleveland, 1888, by a powerful industrialist seeking to expose John D.
Rockefeller's past. In the 1870s,
Rockefeller and the Swift Rise of Standard Oil
« Je ne crois pas qu'il y ait une autre qualité aussi essentielle au succès de toute sorte que la qualité de la persévérance. Elle surmonte presque tout, même la nature. »— John D. Rockefeller
Cleveland, in the late 19th century, was a rapidly expanding city, a strategic crossroads for goods transportation. It was in this fertile context that John D. Rockefeller, a humble accountant, perceived the immense potential of oil. In 1870, he founded the Standard Oil Company of Ohio with partners like Henry Flagler. Their initial strategy was to acquire refineries and streamline the process, reducing production costs to an unprecedented level. Rockefeller distinguished himself by his long-term vision and rigorous management, transforming the nascent industry into a machine of efficiency.
The growth of Standard Oil was not without controversy. Through aggressive tactics, such as obtaining secret rebates on railway transportation (as with the South Improvement Company in 1872), the company gradually eliminated or absorbed its competitors. This horizontal and vertical integration allowed it to control nearly 90% of oil refining and distribution in the United States. While his methods were criticized for their monopolistic nature, Standard Oil's efficiency nonetheless helped make oil and its derivatives accessible to everyone, forever changing the American economic and social landscape.
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.
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
Delve into Standard Oil's bold tactics to dominate the oil industry.
Discover Rockefeller's monumental contributions to the city and beyond.
Reconstruct a key document revealing the vision of the richest man of his time.
Black gold shaped a city, one man forged an empire.
Untangle the threads of power and fortune.
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.
It's a semi-guided trail: GPS points you to the next stop, but you find the camera clue and solve the puzzle yourself. No app to install, everything runs in your browser.
Eight stops total. At each stop you find a camera clue, solve the puzzle, collect a fragment of the final code. With all eight, you've got the answer.
Great two-person format. Narration is dramatic without overdoing it, puzzles are designed to spark conversation. Ideal for new relationships or anniversaries — you discover the city and coordinate on puzzles simultaneously.
Intermittent 4G is plenty. Maps are cached at startup. Narration and clues load per stop, so a so-so signal between stops is fine. GPS itself uses no data.
Soyez le premier à partager votre expérience.
Did you play l empire de l or noir? Check the email you received after your game to leave a verified review.
Dare you reconstruct the secret ledger that revealed John D. Rockefeller's strategy?
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
More destinations, tours & urban treasure hunts across the country




Birthplace of Motown and the Motor City
Steel City reborn, where rivers meet innovation
Columbus, a metropolis where innovation meets the art of living.
Ohio's first capital, rich in history and mysteries
Bold architecture and vibrant history
Where the Ohio River meets history and art
Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.
Pour explorer des expositions dédiées à l'histoire industrielle de Cleveland, y compris l'ascension de Standard Oil et l'héritage de Rockefeller.
Visitez un ancien navire marchand des Grands Lacs pour comprendre l'importance du transport maritime dans l'acheminement du pétrole brut et des produits raffinés à l'époque de Standard Oil.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.