The Regents' Conspiracy — Uncover Hals's Hidden Testimony
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Haarlem, Noord-HollandThe Regents' Conspiracy — Uncover Hals's Hidden Testimony
📍 Haarlem, Noord-Holland·🕐 2h – 2h30·📍 ~2.5 km
Also available as:HistoricalMysteryFantasyCinema

The Regents' Conspiracy — Uncover Hals's Hidden Testimony

Decipher Frans Hals's cryptic group portraits to expose a conspiracy of power among Haarlem's elite regents. Uncover the secrets hidden in paint and shadow.

📱 1 to 10 phones · 1 team per phone · Independent codes

Difficulty
·From age 12 years
Starting point :Grote Markt, Haarlem

In 1664, Frans Hals, the aging master of Dutch portraiture, painted the Regents of the Old People's Home—five austere figures whose cold gazes seemed to conceal far more than charity

8
stages
~2.5 km
route
2h – 2h30
at your pace
🚶
walking

The Regents' Conspiracy — Uncover Hals's Hidden Testimony

🎭Your Mission

You are a young archivist, commissioned in 17th-century Haarlem by Frans Hals' workshop to reconstruct the painter's secret testimony concerning the Regents' conspiracy.

Your quest begins in the

Delve into the heart of Haarlem, a prosperous city of the Dutch Golden Age, and unmask a conspiracy threatening the legacy of master Frans Hals.

Far more than an escape game

A game, a guided tour and a heritage guide — all in one

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.

🏛️
Hidden historical gems

At each stop, places ordinary guides miss — secret façades, sculpted crests, alleys steeped in history.

📜
Anecdotes & legends

Every riddle is rooted in a real historical fact or local legend. You leave with dozens of stories to tell.

🏗️
Architecture & heritage

Learn to read buildings — flamboyant Gothic, Baroque, Art Deco — like a real art historian, while having fun.

🚶‍♀️
Immersive wandering

Walk through the city like a novel's character — every alley becomes a stage, every square a theatre.

🎙️
Immersive audio narration

A voice walks with you at every step, tells the story of each place, reads clues, adds a cinematic feel.

📲
Yours forever

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. »

How does it work?

🏛️
Outdoor escape game

Explore the city on foot solving puzzles based on real historical facts. No locked room — the city is your playground.

📱
On your smartphone

No app to download. Play directly from your browser. Guided step by step, at your own pace.

👨‍👩‍👧‍👦
Unlimited players

One purchase per phone is enough. Play with family, friends or as a couple — everyone participates.

🎯
Augmented reality

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.

🤖
AI that helps you

Stuck? Progressive personalised hints. The character repeats the puzzle on demand — at your own pace.

🗣️
32 languages

French, English, German, Spanish, Italian + 27 other languages auto-translated by AI.

🎟️

Want to go deeper?

Places tied to your adventure — optional entries, totally up to you · per person

Frans Hals Museumoptional
€17.50. Admire 'The Regents' and 'The Regentesses' by Frans Hals, monumental portraits reflecting the power of 17th-century administrators in Haarlem.
Optionnel
/pers.
Grote Kerk (St. Bavo Church)optional
Free access. Explore the late Gothic architecture of this church completed in 1532 and its monumental Christiaan Müller organ from 1738, a Golden Age masterpiece.
Optionnel
/pers.
Proeverij en 't Oude Slot (Beer Tasting)optional
Various prices. Taste local craft beers in a historic setting, an immersion into Haarlem's brewing culture dating back to the Middle Ages.
Optionnel
/pers.
Molen de Adriaan (Windmill)optional
€6. Visit this iconic windmill from 1778, restored in 1998, offering breathtaking views of the Spaarne and Haarlem's historic center.
Optionnel
/pers.
Budget if you do them all / pers.~0
« Truth conquers force »
Historical motto of the city of Haarlem, related to the Resistance of 1573

The story that haunts this land

Your investigation begins in the Grote Markt, Haarlem's public and commercial epicenter since the 13th century. Around you, 16th and 17th-century buildings bear witness to the opulence of the Dutch Golden Age. It is here, facing the majestic Grote Kerk, that you receive your first mission: to decode the hidden symbols in the late Gothic architecture of this church, completed in 1532. Its proportions, with a main nave approximately 35 meters high, and its monumental Christiaan Müller organ, built in 1738, were the setting for services attended by Haarlem's regent elites, whose secrets are at the heart of your quest.

Continuing your journey through Haarlem, you discover the Vleeshal, the Meat Hall, a Renaissance edifice designed by architect Lieven de Key in 1603. Its three arched bays and characteristic Northern style once housed a covered market, tightly controlled by the regents and bakers' guilds. Your path then leads to the Stadhuis, the City Hall, built between 1630 and 1633. This Dutch Renaissance-style building, adorned with justice sculptures, was the seat of municipal administrative power where the regents held their assemblies, and where crucial clues about their influence might be hidden.

The climax of your investigation in Noord-Holland leads you to the Frans Hals Museum, housed since 1913 in the Oudemannenhuis, a 17th-century almshouse. This museum holds the world's largest collection of paintings by Frans Hals (1580-1666). It is here that 'The Regents' (1664) and 'The Regentesses' (1665) are exhibited, group portraits measuring 210 x 290 cm that are key to your journey. These paintings depict the administrators of the almshouse, and it is through their gazes that Hals is believed to have left his hidden testimony about the Haarlem regents' conspiracy.

Your exploration of the Dutch Renaissance heritage then takes you to the Hofje van Staats, an inner courtyard founded in 1617 by Laurens Janszoon van Staats, a prosperous regent. This complex of small houses, intended for widows and elderly people without resources, is a preserved example of Golden Age charitable institutions. Although charitable, this hofje was a work of the regents, whose motives were not always disinterested. Finally, you reach the Molen de Adriaan, a windmill built in 1778, restored in 1998, which overlooks the Spaarne river, a major commercial artery where the regents controlled transport and customs.

By completing your historical scavenger hunt along the quays of the Spaarne, a historic river that powered Haarlem's mills and was a vital commercial artery during the Golden Age, you will have unraveled the threads of the conspiracy. The 16th-17th century merchant buildings lining the quays, as well as the Amsterdamse Poort bridge, a fortified point controlled by urban authorities, will have revealed their secrets. This thematic circuit in Haarlem will have allowed you to delve into the city's history, understand the role of the regents and Frans Hals, and discover the Renaissance heritage of the Netherlands, making for an unforgettable interactive visit to Haarlem for the whole family.

1582
Birth of Frans Hals (approximate date).
1664
Frans Hals paints the Regentesses and Regents of the Old Men's Almshouse, his last great works.
1666
Death of Frans Hals in Haarlem, he is buried in the Grote Kerk.

The Route

8 stages through the city

The gameplay: AR, camera, hidden clues

📱Search clues with your cameraRA

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.

8
original puzzles
24
min of narration
🪙 24
TripCoins granted
16
GPS waypoints

How does it work with a group?

One phone = one team. Pick the number at checkout (1 to 10).

🧍
1 phone

Solo, or a group sharing the screen. One team, one code.

👥
2-3 phones

Family, couple, or 2-3 teams competing. Each phone has its own code and its own score.

👨‍👩‍👧‍👦
4 to 10 phones

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.

  • All codes are independent — play at the same time OR separately, each team advances at its own pace.
  • Leaderboard between your teams + global game leaderboard — each score appears in the public ranking.
  • More than 10 phones or need a personalized quest? Discover custom tours.
🕒No date to pick · Code valid 1 year · Play whenever you want

Ready to live this adventure?

Get my code · 12€

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🔒 Secure payment · Code in 5 min · Free cancellation

Practical info

Starting point
Grote Markt, Haarlem
Directions on Google Maps
🕐
Duration
2h – 2h30
At your own pace
👥
Players
Unlimited
From age 12
📍
Distance
~2.5 km
Historic center
Accessibility
Partial
Some cobblestones and bridges
🌐
Languages
17 languages
Built-in translation

Why this route?

🎨

Artistic Intrigue

Immerse yourself in the fascinating world of Dutch Golden Age master painters and the mysteries of their art.

📜

Guild Secrets

Explore the rules, rivalries, and secrets that the powerful artists' guilds of the era carefully guarded.

🔎

Historical Investigation

Follow the footsteps of a master painter through historic Haarlem locations to solve a centuries-old enigma.

Uncover the secret threatening Frans Hals's legacy!

Haarlem, 1665: Time is running out for the master.

★ Innovation 2026

9 features nobody else has

OddballTrip combines gamified play, augmented reality and AI. All our competitors deliver 1 or 2 of these angles. We deliver all 5.

🎁

AR treasure chest

A golden chest floats in front of the monument. Tap → opening animation → reveals a secret message.

🧙

AR narrator character

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.

📜

Magic golden letters

At the puzzle climax, golden letters magically write themselves on the real wall — that's the puzzle answer. An unforgettable visual effect.

🎧

Written + audio narration

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.

🧭

360° radar + vibration

A mini-radar shows the target even behind you, and the phone vibrates when you aim in the right direction.

📸

Heritage storytelling

Every puzzle weaves in real historical facts (architecture, era, anecdotes). You learn by playing — like a gamified audioguide.

🤖

Progressive AI hints

3 levels of AI-generated help: vibe → where to look → answer format. You're never stuck.

🤳

AR selfie memento

At the end of the game, capture a selfie with OddballTrip banner + mascot, shareable on Instagram, TikTok.

📱

Zero app to install

PWA technology: open the link, it plays in your browser. Same quality as an app, no App Store hassle.

Frequently asked questions

Q01Do I need to download an app?

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.

Q02Does it work offline?

GPS yes (handled by your phone). Maps yes (tiles cached). AI and hints need an intermittent 4G connection.

Q03How long does a game take?

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.

Q04What happens if I'm stuck?

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).

Q05What's the age range?

From 12 without an adult, from 6 with an adult reading puzzles. Works for families, couples, friend groups, companies.

Q06What if my city isn't in the catalogue?

Pre-register or contact us — we'll email you as soon as your city is live.

Q07What is augmented reality exactly?

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.

Avis des aventuriers

Soyez le premier à partager votre expérience.

Did you play le registre de hals? Check the email you received after your game to leave a verified review.

Your turn to play

Delve into the heart of Haarlem, a prosperous city of the Dutch Golden Age, and unmask a conspiracy threatening the legacy of master Frans Hals.

12€
1 phone
23€
2 phones
33€
3 phones
42€
4 phones
50€
5 phones
56€
6 phones
62€
7 phones
68€
8 phones
74€
9 phones
80€
10 phones

1 purchase = 1 phone. Play several on the same device.

🕒No date to pick · Code valid 1 year · Play whenever you want
Get my code · 12€

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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