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Uncover Mata Hari's hidden codes and double-agent plots across The Hague's landmarks. Decipher her espionage trail before her secrets vanish forever.
📱 1 to 10 phones · 1 team per phone · Independent codes
In 1915-1916, exotic dancer Mata Hari, born Margaretha Zelle, resided in The Hague's elegant city centre, entangled in a web of wartime intrigue
You are Margaretha Zelle, known as Mata Hari, an exotic dancer and alleged spy operating in The Hague in 1916.
Your objective: thwart enemy agents' plans
Delve into The Hague's secret alleys, where the ghosts of Great War spies still whisper Mata Hari's intrigues.
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
« Peace and Justice »— Official motto of the city of The Hague
Your journey begins at the Vredespaleis, the Peace Palace, a Dutch historic monument built between 1907 and 1913. This 48-meter high neo-Renaissance edifice, designed by Louis Cordonnier, housed the Permanent Court of Arbitration and has been the seat of the International Court of Justice since 1945. It was in the surrounding district that Mata Hari resided between 1915 and 1916, when her alleged espionage activities placed her at the heart of international tensions. The land for this global institution was donated by philanthropist Andrew Carnegie, a gesture for peace that contrasted with the intrigues playing out at its gates.
As you head towards Lange Voorhout, this 17th-century paved historic avenue, you can imagine the royal carriages that once passed through. Approximately 500 meters long, it is lined with mansions and the Mauritshuis, places where the diplomatic elite of the time mingled. It was here, in 1916, that Mata Hari allegedly met German officers, transforming these social gatherings into potential scenes of secret information exchange. The Hague, a city of peace and justice, with its motto "Vrede en Recht" (Peace and Justice), was paradoxically a nest of spies during World War I.
Your route then leads you to the Binnenhof, a political complex dating back to 1250, seat of the States General of the Netherlands. The Ridderzaal, or Knights' Hall, built around 1280 and measuring 39x22 meters, has been the scene of countless national decisions. During Mata Hari's stay in The Hague, the Binnenhof was at the center of diplomatic intrigues. Spies and double agents crossed paths there, attempting to influence European politics from this beating heart of Dutch power, a true Rijksmonument of South Holland's heritage.
A short walk away, Plein square, laid out in the 17th century, served as a market and official reception venue. Surrounded by administrative buildings, it became a gathering point for political demonstrations. It was in this setting that Mata Hari could have observed the movements of The Hague society, analyzed public opinion trends, and potentially identified new targets or sources of information. Every street corner in this South Holland city then held a potential secret, every encounter could be a lead for the dancer turned alleged double agent.
Your exploration continues towards the Hôtel Des Indes, a luxury hotel opened in 1884, which, according to historical archives, was a preferred meeting place for spies during the Great War. Mata Hari allegedly stayed there and met secret agents in 1916, in its tea room frequented by international high society. The Paleis Noordeinde, official residence of the King of the Netherlands since 1816, and the Hofvijver ponds, created in the 13th century, bordered by the Mauritshuis, are in immediate proximity to these places of Mata Hari's life and intrigue. This thematic circuit in The Hague offers a concrete immersion into the history of this period, revealing how South Holland's monuments served as the backdrop for one of the 20th century's most enigmatic figures.
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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Dive into the dark and fascinating world of World War I secret agents.
Uncover the secrets of a woman between two worlds, between dance and intrigue.
Decipher Mata Hari's secret notebook to reveal her true allegiance.
Mata Hari, The Hague's Enigma
Dancer, spy, femme fatale. Can you read between the lines of her story?
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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Delve into The Hague's secret alleys, where the ghosts of Great War spies still whisper Mata Hari's intrigues.
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.
17,50€. Admirez des chefs-d'œuvre hollandais comme 'La Jeune Fille à la perle' de Vermeer, à quelques pas du Binnenhof.
11,00€. Explorez les illusions d'optique et les gravures de M.C. Escher dans l'ancien Palais d'Hiver de la Reine Emma.
Gratuit. Accédez aux jardins royaux de 15 hectares, ouverts au public deux fois par an, offrant un aperçu de la vie royale à La Haye.
4-6€. Goûtez le hareng cru typique des Pays-Bas, souvent servi avec des oignons et des cornichons, une expérience culinaire locale.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.