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Uncover the smugglers' den in Alkmaar's historic core. Decode hidden routes used by black market cheese traders during the 1573 Spanish siege to outwit authorities and reveal their secret comptoir.
📱 1 to 10 phones · 1 team per phone · Independent codes
In the shadowed alleys of Alkmaar's Historic Center, during the brutal Spanish siege of 1573, a daring band of local smugglers operated from a hidden 'comptoir des contrebandiers' — the Smugglers' Den
You are Adriaan Antonisz, a fortification engineer in Alkmaar, circa 1590.
Your superiors have tasked you with investigating a mysterious smuggling network that deftly evades the Acc
Dive into the smuggling secrets of Alkmaar, where 17th-century watchtowers still hide clues of a clandestine network that defied royal excise duties.
At the heart of Alkmaar's Waagplein, the Waag built in 1582 as a cheese weighing hall becomes your first clue. This central square, scene of the market since 1593, hides traces of parallel trafficking in its Renaissance cobblestones. The Kaasdragers, porters organized into rival companies since 1611, know every corner of this official economy. But some of them divert part of the cheese before official weighing, creating a black market that Willem van Sonoy, governor of Noord-Holland, struggles to control from his post since 1572.
The 17th-century Kaasdragershuisje, small house of cheese porters at Waagplein, reveals the secrets of these guilds. Since 1593, official meetings mask clandestine negotiations between different companies. Adriaan Antonisz discovers that some porters use the color codes of their traditional costumes to signal accomplices which shipments to divert. The Mient, commercial artery linking the market to the canals, becomes the discreet corridor where undeclared goods transit to secret warehouses in Alkmaar's historic center.
The Accijnstoren, 25-meter watchtower built around 1622, officially monitors river trade to collect excise duties. But your investigation reveals that some collectors turn a blind eye for payment. This tower, part of fortifications adapted in the 17th century, becomes the weak link in the fiscal system. Smugglers know the guards' shift changes and exploit these windows to pass their untaxed cargoes along the canals bordering Alkmaar's historical heritage.
The Grote of Sint-Laurenskerk, 101-meter Gothic church built between 1470 and 1520, serves as maritime landmark but also secret cache. Its Christian Müller organ from 1738 conceals compromising documents in its pipes. Alkmaar's Stadhuis, seat of local government since the 16th century with its 40-meter tower and 1730 carillon, houses official archives that smugglers attempt to falsify. The Hof van Sonoy, founded in 1575 with its 24 houses for elderly, hides the network's final accomplices in its Renaissance courtyards.
Your route through Alkmaar's historic center reveals how this smuggling network exploited every mechanism of official cheese trade. From Waagplein porters to Accijnstoren collectors, through Stadhuis archives, this Golden Age conspiracy illustrates tensions between free trade and fiscal control in 17th-century Noord-Holland. You leave with a unique vision of this UNESCO city, where every monument tells the parallel story of those who defied royal authority to preserve their clandestine profits.
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?
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Immerse yourself in Alkmaar's cheese history and its centuries-old traditions.
Discover the economic stakes and secrets that drove trade during the Golden Age.
Unravel the mysteries of an investigation to unmask the Stadtholder's secret agent.
Cheese is king, but the secret is the throne.
Unravel the Alkmaar black cheese market plot
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 Alkmaar, Netherlands, 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.
Easy stroll: between stops you walk 3 to 7 minutes. No tough climbs unless flagged on the product page. If you really want to push, you can jog between stops, but that's not the point.
Great fit: no costume required, the team really collaborates (it's not a linear path), and the final code earns you a souvenir photo. Pick a calm time slot — early afternoon usually.
Depends on the exact route in Alkmaar, Netherlands. The vast majority of stops are downtown, on sidewalks or squares. If a stair or narrow passage is involved, it's flagged on the product page. Generally: yes, doable with a standard urban stroller.
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Dive into the smuggling secrets of Alkmaar, where 17th-century watchtowers still hide clues of a clandestine network that defied royal excise duties.
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
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Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.
5€. Plongez dans l'histoire du commerce fromager depuis 1593, avec démonstrations interactives des techniques de pesée traditionnelles dans la Waag historique.
8€. Gravissez les 101 mètres de cette église gothique pour une vue panoramique sur les canaux et découvrez l'orgue Müller de 1738.
12€. Savourez les spécialités fromagères d'Alkmaar avec un fromager traditionnel, accompagnées de bière locale et de pain artisanal.
15€. Naviguez sur les voies d'eau du XVIIe siècle utilisées par les contrebandiers, avec guide spécialisé en histoire maritime d'Alkmaar.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.