Haarlem — The Heroine's Secret
From12€

🕒 No date to pick · Code valid 1 year · Play whenever you want

Get my code
💡City Pass from 19€All games in Haarlem
Haarlem, NetherlandsHaarlem — The Heroine's Secret
📍 Haarlem, Netherlands·🕐 2h – 2h30·📍 ~2.5 km
Also available as:HistoricalMysteryRomanceSpy thriller

Haarlem — The Heroine's Secret

Uncover the hidden truth behind the 1573 Siege of Haarlem. Was Kenau Simonsdochter a traitor or savior? Decipher clues across landmarks to expose her secret pact that saved the city.

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

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

In 1573, Haarlem endured a brutal seven-month siege by Spanish forces during the Dutch Revolt

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

Haarlem — The Heroine's Secret

🎭Your Mission

You are a trusted courier for Kenau Hasselaer, Haarlem, spring 1573, tasked with verifying the city's desperate defense strategy during the seven-month siege that forged the

Follow the traces of Kenau Hasselaer, heroine of the 1572-1573 siege of Haarlem, through the Renaissance fortifications that defended Dutch freedom.

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
€16. Unique collection of group portraits by the Golden Age master, in the former hospice where Kenau Hasselaer lived.
Optionnel
/pers.
Molen de Adriaan - Guided Touroptional
€8. Climb the 1779 windmill, spice grinding demonstration with panoramic view over Haarlem.
Optionnel
/pers.
Jopen Brewery Beer Tastingoptional
€12. Craft brewery in former Jacobskerk church, beers brewed according to 16th-century historical recipes.
Optionnel
/pers.
Spaarne River Cruiseoptional
€14. 1-hour navigation on the historic river, unique view of Renaissance fortifications from the water.
Optionnel
/pers.
Budget if you do them all / pers.~0
« Haarlem, city full of history and courage, where women and men defended freedom »
Local commemorative inscription, Siege of Haarlem Plaque (1572-1573), Kenaupark

The story that haunts this land

The Grote Kerk Saint-Bavo raises its 38-meter flamboyant Gothic vault since 1532, silent witness to Frans Hals' baptism in 1582. Its walls sheltered the secret assemblies of 1572, when Haarlem's burghers swore allegiance to William of Orange against Philip II of Spain. The Müller organ from 1738, with its 3,800 pipes, resounded with Te Deums of victory after each assault repelled during the siege.

The Stadhuis, Gothic edifice from 1245 rebuilt after the 1351 fire, served as Kenau Hasselaer's headquarters during the seven months of resistance. Its Renaissance facade, added by Lieven de Key in the 16th century, still bears traces of Spanish cannonballs. From its 40-meter watchtower, defenders monitored the movements of Fadrique de Toledo's tercios camped at the city gates.

Kenaupark has perpetuated since 1906 the memory of Kenau Hasselaer, born in 1526, who led 300 women in defending the ramparts. Her statue, erected in 1876 by Bart van Hove, depicts her brandishing a sword against the Spanish invader. This heroine of the Eighty Years' War died in 1588, fifteen years after saving Haarlem's honor through her fierce resistance.

The Amsterdamse Poort, sole survivor of the seven fortified gates from 1355, was rebuilt in 1585 according to Renaissance standards after its destruction during the religious wars. Its 26-meter height commanded the northern access to the besieged city. Municipal archives relate that Kenau had artillery pieces recovered from Sea Beggar ships installed there to bombard Spanish lines.

Your journey in the heroine's footsteps reveals a Haarlem where every stone tells the story of Dutch resistance's birth. From the Hofje van Staats of 1620, refuge for war widows, to the Adriaan windmill of 1779 still grinding spices from renewed commerce, you measure the legacy of those seven months that transformed a merchant city into a symbol of freedom.

1568
Start of the Eighty Years' War
1572
Beginning of the Siege of Haarlem by Don Fadrique
1573
Fall of Haarlem after 7 months of resistance

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€

No calendar booking. Code sent immediately by email.

🔒 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
Haarlem city center
Accessibility
Full
Flat route
🌐
Languages
17 languages
Built-in translation

Why this route?

⚔️

Military Strategy

Discover the daring tactics and stratagems used by Haarlem's defenders to repel Spanish assaults.

🛡️

Civic Courage

Explore the incredible resilience of the inhabitants, men and women, who transformed their city into a human fortress.

📜

Resistance Logbook

Reconstruct a secret logbook that reveals the unknown facts and forgotten heroes of the Siege of Haarlem.

Even in defeat, the spirit of Haarlem endured.

Untangle the threads of history to reveal the truth of the siege.

★ 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 l heroine de haarlem? Check the email you received after your game to leave a verified review.

Your turn to play

Follow the traces of Kenau Hasselaer, heroine of the 1572-1573 siege of Haarlem, through the Renaissance fortifications that defended Dutch freedom.

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

🎟️Coupe-file

Réservez vos entrées maintenant

Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.

💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.