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Decode the Crimp's hidden ledger and expose the sinister network of kidnapping and forced servitude that thrived in Portland's shadowy Shanghai Tunnels. Unravel the dark secrets before they claim another soul.
📱 1 to 10 phones · 1 team per phone · Independent codes
In the gaslit alleys of 1890s Old Town Chinatown, Portland's notorious crimps ruled the underworld
You are Stephen G.
Skidmore, the esteemed mining magnate and philanthropist who gifted Portland its iconic fountain in 1888. Your mission: to decipher an occult ledger revealing the machinations of
Dive into the vibrant Portland of the 1880s, when its port on the Willamette River was a gateway to the American West and its untold secrets.
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
Your quest begins at the Skidmore Fountain, a gift from Stephen G. Skidmore in 1888 to provide drinking water for humans and horses. This 3-ton, 16-foot-high fountain, designed by Ira N. Blandford and imported from England, is a key Portland Historic Landmark. Relocated in 1970 to the corner of SW 1st Ave & SW Ankeny St, it marks the entrance to the Old Town Chinatown Historic District, where sailors and criminals once swarmed. It was here, near the water, that 'crimps' laid their traps, a practice that marked the history of Portland and Oregon.
Continue to Pioneer Courthouse Square, a public space opened in 1984 on the site of the former Lewis and Clark Exposition pavilion demolished in 1905. This 1.12-acre square, in downtown Portland's Park Blocks, is a gathering place. It features the 40-foot-high Weather Machine, installed in 1990, which displays weather symbols daily at noon. Although more recent, this site offers a perspective on Portland's urban evolution, contrasting with the older architecture you will explore next.
The Burnside Bridge, opened on December 22, 1910, was Portland's first permanent vehicular bridge across the Willamette River. This 40-foot-wide, 1,662-foot-long bascule truss bridge, named after businessman Dan W. Burnside, was historically raised 72 times daily to allow ships to pass. Added to the National Register of Historic Places in 1993, it connects the city's banks, an essential passage for the business and discrete trafficking that animated Portland's port during the era of the 'crimps'.
In the heart of Old Town Chinatown, you'll discover the Chinese Consolidated Benevolent Association building at 70 N 4th Ave. Founded in 1878 to serve Portland's Chinese immigrant community, this 1911 structure, with its pagoda-style roof, has been a National Register Historic Place since 1989. It housed the Gee Duck Tong, a key fraternal organization, and served as a community center. The district, designated in 1979, saw its Chinese population peak at 10,000 residents in the 1880s before declining after exclusion acts and urban renewal, leaving cast-iron architecture treasures from 1880-1910.
Your journey will also take you to the Merchant Hotel, built in 1880 at 305 NW 3rd Ave, one of Portland's earliest hotels and a Portland Historic Landmark since 1974. Originally a five-story building, it hosted sailors and merchants during the port's boom. Later becoming Old Town Pizza, its basement is the site of haunting legends tied to an 1890s murder. By deciphering the clues here, you unravel the threads of Portland, Oregon's dark history, and understand how the city, dotted with sites like the White Stag Sign and Chinatown murals, preserves the traces of its past. This route is an immersion into the heritage of a city that remembers its foundations, its lights, and its shadows.
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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Find a coded ledger revealing the names of disappeared sailors.
Dive into the heart of port history and the lives of sailors from yesteryear.
Conduct a real investigation based on true facts and urban legends.
Unravel the threads of a forgotten conspiracy.
Portland's past awaits you.
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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Did you play le registre du crimp? Check the email you received after your game to leave a verified review.
Dive into the vibrant Portland of the 1880s, when its port on the Willamette River was a gateway to the American West and its untold secrets.
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

Decipher the hidden history of Portland's notorious Shanghai Tunnels—a network of underground passages where workers were once trapped and traded. Uncover the truth behind the city's darkest secret.

Uncover Captain Blackwood's hidden logbook revealing the smugglers' routes through Portland's shadowy waterfront. Decode clues at historic landmarks to expose the conspiracy before it's lost forever.

Uncover the secret cipher in Henry Wadsworth Longfellow's lost manuscript, hidden amid Portland's landmarks after the 1866 Great Fire. Decode clues to reveal a family conspiracy before it's lost forever.

Decipher the coded architectural legacy of a visionary designer whose master plan for Portland's rebirth was deliberately erased. Uncover the conspiracy that buried his blueprints.

Uncover the secret plot behind Portland's vanished monuments. Track clues from toppled statues to expose the hidden conspiracy that shook the city in 2020.
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Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.
12€. Explorez les expositions permanentes et temporaires sur l'histoire de l'Oregon, des peuples autochtones aux pionniers et au développement moderne de Portland.
14€. Un jardin chinois classique construit en partenariat avec la ville de Suzhou, Chine, offrant une oasis de paix et de beauté au cœur de Chinatown.
Variable. Portland est réputée pour ses microbrasseries. Visitez Old Town Pizza & Brewing pour goûter des bières locales dans un cadre historique.
20€. Explorez les tunnels souterrains de Portland, où la légende raconte que les 'crimps' enlevaient des hommes pour les envoyer sur des navires.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.