🕒 No date to pick · Code valid 1 year · Play whenever you want
Get my code
Decipher the hidden codes in Philetus Sawyer's private ledger to expose the lumber baron's web of corruption, bribery, and political manipulation that shaped Oshkosh's rise.
📱 1 to 10 phones · 1 team per phone · Independent codes
Philetus Sawyer built an empire on timber and secrets
You are Thomas Hartwell, municipal archivist in 1895 Oshkosh, USA.
Your mission: investigate the mysterious disappearances of official documents from Lucius Sawyer's offices. You
Dive into the industrial secrets of Oshkosh's Gilded Age, where lumber and paper magnates built an empire on the shores of Lake Winnebago between 1850 and 1920.
Oshkosh reached its industrial peak in the 1850s through intensive exploitation of Wisconsin's forests. Lucius Sawyer, arriving in 1848, quickly became one of the region's most influential lumber magnates, lending his name to the creek that still flows through downtown today. The Oshkosh Public Museum, housed since 1926 in his residence built by William H. Osborne in 1875, preserves traces of this golden era. Listed on the National Register of Historic Places in 1974, this 3-story mansion displays artifacts that witness Oshkosh's transformation into the Midwest's industrial capital.
The Grand Opera House, erected in 1883 at the heart of Gilded Age prosperity, symbolizes the cultural ambitions of Oshkosh's nouveau riche. With its 930 seats and prestigious programming, this theater attracted the era's greatest artists to this booming manufacturing city. Restored in 1995 after the 1984 fire, it remains witness to the golden age when lumber industrialists invested heavily in the arts. Listed on the National Register in 1979, it stands just 0.4 km from the museum at 100 High Avenue, along the axis of economic power.
Oshkosh City Hall, built in 1912 in Beaux-Arts style, materializes the peak of municipal prosperity financed by the paper industry. Its 40-meter tower, crowned with a clock installed in 1913, dominates the urban landscape from 215 Church Avenue. Hiram Paine, paper magnate arriving in the 1900s, contributed largely to financing these major public works. Listed on the National Register in 1985, this building witnesses Oshkosh's transformation into Wisconsin's industrial metropolis, 0.6 km from your investigation's starting point.
The Paine Art Center and Gardens reveals the scope of fortune accumulated by Oshkosh industrialists. Hiram Paine had this 25-room mansion built between 1926 and 1927, spanning 19,000 m² with 3-hectare gardens created in the 1930s. Located on Algoma Boulevard just 0.3 km from the museum, this princely residence illustrates American industrial bourgeoisie's splendor. Open to the public since 1946 and listed on the National Register in 1974, it perpetuates the artistic legacy of this paper dynasty that marked Oshkosh's urban landscape.
Your journey through the historic Algoma Boulevard district reveals how a Wisconsin city rose to industrial capital status through lumber and paper fortunes. From the 1875 Sawyer House to the 1926 Paine mansion, you traverse 50 years of wealth accumulation that financed Oshkosh's finest monuments. The Oshkosh Public Library, opened in 1966 at 106 Fulton Street replacing the 1900 Carnegie Library, symbolically closes this golden era. You carry away intimate understanding of this Midwest Gilded Age, where natural resource exploitation created exceptional architectural heritage.
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
5-10 curated sites across the territory
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 · 14,90€No calendar booking. Code sent immediately by email.
🔒 Secure payment · Code in 5 min · Free cancellation
Dive into the era when Oshkosh was the lumber capital of the world, a wealth that shaped its architecture and people.
Follow the footsteps of the famous 'lumber barons' who built empires and left their indelible mark on the city.
Discover how Oshkosh, ravaged by fire, always managed to rise from its ashes, a symbol of its inhabitants' resilience.
Oshkosh: The secret saga of lumber and fortune. Uncover it!
Your investigative spirit is the key to unraveling the mysteries of the lumber barons.
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.
Did you play le livre noir de sawyer oshkosh? Check the email you received after your game to leave a verified review.
Dive into the industrial secrets of Oshkosh's Gilded Age, where lumber and paper magnates built an empire on the shores of Lake Winnebago between 1850 and 1920.
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 destinations, tours & urban treasure hunts across the country




Where lakes meet learning and lively culture
Cornish mining heritage in the American heartland
Step back into 19th-century America
Where architecture defies the sky and the spirit vibrates.
A timeless island, car-free and carefree
On the trail of Abraham Lincoln
Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.
31€. Plus de 200 avions historiques exposés, dont des appareils de la Première Guerre mondiale et des prototypes expérimentaux uniques au monde.

8€. Zoo centenaire de 1902 avec plus de 200 animaux, situé dans le parc historique Menominee au bord du lac Winnebago.
45€. Institution culinaire d'Oshkosh depuis 1974, spécialisée dans les steaks et fruits de mer avec vue panoramique sur le lac Winnebago.
25€. Navigation de 2h sur le plus grand lac du Wisconsin avec commentaires sur l'histoire industrielle d'Oshkosh et ses magnats du bois.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.