Play the city game of Maassluis
An interactive adventure through Maassluis. Join the Order of the Secret Map, solve puzzles and uncover highlights and hidden gems at your own pace.
No app to install, no account — tap and you're playing, right in your browser. The first stops are free.
- In your browser
- No download
- No account
- First stops free
- In your language
🏅 Finish this walk in 2026 and you're a Founding Explorer — a badge from the early days that stays on your profile forever. What's a Founding Explorer? →
The story
The Order of the Secret Map
Welcome, Explorer. The Order of the Hidden Map has opened a route for you in Maassluis that ordinary visitors never fully perceive. Follow the silent echoes of the Groote Kerk, feel the salty breeze carrying tales of tugboats, and let yourself be guided by the lively scents of the Markt. Here, a network of hidden splendor unfolds.
A glimpse of the story — discover the rest while playing.
About this city walk
Discover Maassluis on a self-guided walking tour
Our interactive walking tour of Maassluis blends a classic city walk with an escape game. You get a real tour guide in your pocket that takes you past the must-see landmarks of Maassluis and the hidden gems only locals know.
No schedules, no group, no headset. You play the city walk whenever you want, at your own pace. Perfect for things to do in Maassluis — solo, with friends, with kids, or as an activity for a city break, bachelor party or team outing.
Along the way you solve puzzles and uncover the mystery of The Order of the Secret Map. A unique way to get to know Maassluis — more than a regular walking tour, and a fraction of the price of a live guide.
Why players love CityWalkGems
At your pace
No schedules or groups. Start, pause and resume whenever you want.
Highlights + gems
The must-sees plus spots even locals sometimes miss.
Story in every street
History and mystery woven through the city itself.
A fraction of a guide
A real private guide in your pocket, for a fraction of the price.
Zero hassle
No download, no account, no waiting. Open the link and you're playing.
What you'll see in Maassluis
Welcome, Explorer. The Order of the Hidden Map has opened a route for you in Maassluis that ordinary visitors never fully perceive. Follow the silent echoes of the Groote Kerk, feel the salty breeze carrying tales of tugboats, and let yourself be guided by the lively scents of the Markt. Here, a network of hidden splendor unfolds.
Along the way you'll pass Groote Kerk, Museum Nationaal Sleepvaartmuseum, Markt maassluis, Mr. Dr. C.P. Zaayer Pumping Station and tug Elbe — and beyond these highlights you'll discover plenty more, including 5 hidden gems in Maassluis that only locals know about.
Ready for the adventure?
Start your mission in Maassluis
Play right now in your browser — no download, no account.
No download · no account