Secrets of
Kiel

Self-Guided Secrets of Kiel Exploration Game

Unlock Kiel’s Hidden Secrets! Dive into its harbor breeze and historic streets as you join Max Planck to uncover who’s spreading cryptic clues through this vibrant, story-filled city.

About Secrets of Kiel

The City Game Kiel is a self-guided city game that takes place in the city center of Kiel. In this GPS-based game, players explore the area using their smartphone while solving puzzles, riddles and photo challenges along the way. As you progress through the exploration game, you’ll discover Kiel’s culture, uncover hidden details and learn about the city’s maritime history. The experience is designed for both visitors and locals, offering a fun and informative way to engage with the surroundings. Whether playing solo, as a couple, with family or in a group of friends, the City Game Kiel provides a flexible and interactive way to explore.

1.5-2 hours of play time

3-4 km walking distance

Start at Kiel, City Hall Tower

Start, pause & continue whenever you want

Play on your smartphone, no downloads needed

1-4 people per smartphone

What you’ll experience during the game

As you journey through Kiel with the City Game, you’ll uncover both the city’s iconic landmarks and its hidden corners, all woven into an interactive story. The route guides you past the towering spire of City Hall, along the vibrant waterfront of Kiel Harbor, and into the historic atmosphere surrounding St. Nikolai Church. You’ll also come across the preserved Warleberhof building, now home to the city museum, and the quiet lakeside charm of Kleiner Kiel. Each location invites you to see Kiel from new angles, blending history, art and everyday life.

Throughout the game, you’ll solve puzzles, answer riddles, and take part in creative photo challenges that bring local stories to life. Each task helps you earn points, unlock clues and move closer to revealing a final mystery connected to Kiel. The experience is flexible—play at your own pace, pause whenever you like, and pick up again when ready. If you’re feeling competitive, compare your score to others on the leaderboard and aim for a top spot.

Who is it for?

This City Game is designed for anyone who wants to discover Kiel in a playful and meaningful way. It’s ideal for:

  • Solo explorers looking for a flexible adventure
  • Couples who want to experience the city in a fun and surprising way
  • Families with curious kids who enjoy puzzles and challenges
  • Friends wanting a lighthearted activity full of laughter
  • Groups and teams searching for a unique, self-guided teambuilding experience

Whether you’re a local seeing Kiel with fresh eyes or a visitor exploring the city for the first time, this GPS-based game offers a memorable way to connect, play and explore together.

What’s included?

Included

  • Self-guided Exploration Game
    Play independently on your own smartphone.
  • Game link & instructions
    Simple steps to start the activity.
  • GPS-based route with puzzles & challenges
    Riddles, questions and photo tasks.
  • Fun facts & stories about Kiel
    Learn about iconic and hidden spots.

Excluded

  • Smartphone or other devices (bring your own to play)
    You only need one phone per team.
  • In-person guide (digital guide in-game only)
    Everything is fully self-guided inside the game.

Good to know

  • Flexible start, pause & continue
  • 1-year access from purchase date
  • 1–4 people per smartphone
  • Difficulty: Easy-moderate
  • Recommended age: 8+
  • Internet & GPS required
  • Available languages: Dutch, English, French, German, Italian, Spanish and 30+ more!
  • Start location: Kiel, City Hall Tower

How to play

After booking, you’ll receive an email with a direct play link to start your adventure. Simply head to the Kiel City Hall Tower, open the link, and begin exploring. The game starts whenever you’re ready and can be paused and resumed at any time.

Book your Secrets of Kiel experience now

Per group

€ 25,95

Book your Secrets of Kiel experience now

A 2-hour self-guided City Explore Game through Kiel: explore highlights, solve puzzles and play at your own pace.

  • 1.5 – 2 hours
  • 3 – 4 km
  • Kiel, City Hall Tower
  • Languages: Dutch, English, French, German, Italian, Spanish and 30+ more!

Per group

€ 25,95

  • Cancel anytime for full refund
  • Instant confirmation
  • Accessible for 1 year from the purchase date
  • Payments are secure & encrypted
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The story of Secrets of Kiel

A strange pattern pulses through the quiet streets of Kiel. Cryptic symbols etched on benches, puzzles hidden near statues, whispers of secrets that no one can trace. Max Planck, the father of quantum theory and a native of this very city, is no stranger to mysteries. But this? This is different. This is personal.

Guided by curiosity and a hint of concern, Max sets out to uncover the truth behind the sudden appearance of these secrets. Who is planting them? Why now? And what do they want? As the fog lifts over the harbor and old newsprints flutter through the square, you’ll walk alongside Max through 15 breadcrumb-laced locations, each offering a piece of a larger enigma. In the end, it all leads to an unexpected figure….

You came to explore. You stayed to save the story.

Book now

Max Planck

Your start location

After booking, you’ll receive an email with your play link and simple start instructions. On the day you want to play, just head to the start location at Kiel, City Hall Tower, open the link on your smartphone and begin the game. From there, you simply follow the GPS route, complete the challenges and explore at your own pace.

Kiel, City Hall Tower

Get directions

How the Secrets of Exploration City Game works

Discover how the self-guided exploration game leads you through the city, step by step.

Start whenever you want

Begin the game the moment you arrive at the starting location, with no fixed departure time.

Follow the GPS route

Navigate through the city using the built in map that guides you from checkpoint to checkpoint.

Solve puzzles and riddles

Crack codes, answer clever questions and use your surroundings to complete challenges.

Complete creative photo challenges

Capture fun moments, recreate poses or search for hidden details as part of interactive missions.

Discover local stories and fun facts

Each location reveals surprising insights about the area’s history, culture and hidden secrets.

Earn points at every location

Score points by completing assignments at each point. Compete with other teams and climb the leaderboard.

Unlock badges and achievements

Earn digital badges as you reach milestones during the game. Every achievement adds to your team’s progress.

Play at your own pace

Take breaks whenever you like and continue the adventure when you are ready.

Book now

How the Secrets of Exploration City Game works

Discover how the self-guided exploration game leads you through the city, step by step.

  • Start whenever you want

    Begin the game the moment you arrive at the starting location, with no fixed departure time.

  • Follow the GPS route

    Navigate through the city using the built in map that guides you from checkpoint to checkpoint.

  • Solve puzzles and examine evidence

    Crack codes, answer clever questions and use your surroundings to complete challenges.

  • Complete creative photo challenges

    Capture fun moments, recreate poses or search for hidden details as part of interactive missions.

  • Discover local stories and fun facts

    Each location reveals surprising insights about the area’s history, culture and hidden secrets.

  • Earn points at every location

    Score points by completing assignments at each point. Compete with other teams and climb the leaderboard.

  • Unlock badges and achievements

    Earn digital badges as you reach milestones during the game. Every achievement adds to your team’s progress.

  • Play at your own pace

    Take breaks whenever you like and continue the adventure when you are ready.

Book now

What others think of our City Games

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Do you have questions? We have answers!

Check out our frequently asked questions and find out everything you want to know. Is your question not among them? Feel free to contact us.

View all fequently asked questions Get support

Secrets of Kiel takes around 1.5 to 2 hours to complete. There is no strict time limit, so you can explore Kiel at your own pace and pause the game whenever you like.

Most teams complete the game within this time frame, but you’re free to take longer if you want to stop for a drink, explore a location more deeply, or enjoy the city along the way!

The game starts at Kiel, City Hall Tower. After booking, the start location is clearly communicated in the instruction email and becomes visible in the game.

The entire game takes place outdoors. You don’t need to enter any buildings or visit locations with opening hours. Simply arrive at the start location, open the game on your smartphone, and you can begin exploring right away!

There is no limit to the total number of players for Secrets of Haarlem!

The game is played in teams of 1 to 4 people per smartphone.
If you’re playing with more than 4 people, simply book multiple teams, so everyone can play at the same time using their own devices and use the same play link.

For larger groups or corporate events, a fully hosted version of this City Game is also available, including on-site guidance, tablets and live support.

Planning a larger group or corporate event?
Explore the hosted City Game experience for groups

No, you don’t need to reserve a time slot for Secrets of Kiel! After purchase, you can start the game anytime you want, on any day, within the 1-year access period.

This flexibility makes Secrets of Kiel ideal if you’re visiting the city without a fixed schedule, want to check the weather first, or prefer to start spontaneously once you arrive in the city!

Yes, Secrets of Kiel is suitable for families with children aged 8 and up!

The game is designed as a shared experience, where puzzles, riddles and challenges can be solved together, making it accessible for both kids and adults.

Younger players can actively join by spotting details, answering questions and completing photo challenges, while adults guide the team through the more challenging parts. This makes Secrets of Kiel a fun and engaging activity for mixed-age groups exploring the city together.

Secrets of Kiel is available in 30+ languages, allowing players from all over the world to enjoy the game in their own language while exploring the city.

The game supports many widely spoken languages such as English, Spanish, French, German, Italian and Dutch, among others.

This makes Secrets of Kiel an accessible and enjoyable experience for international visitors, expats and mixed-language groups.

All available languages:

  • Arabic
  • Bulgarian
  • Chinese
  • Chinese (Hong Kong)
  • Croatian
  • Czech
  • Danish
  • Dutch
  • English
  • Finnish
  • French
  • German
  • Greek
  • Hebrew
  • Hungarian
  • Icelandic
  • Indonesian
  • Italian
  • Japanese
  • Korean
  • Lithuanian
  • Norwegian
  • Polish
  • Portuguese
  • Portuguese (Brazil)
  • Russian
  • Serbian
  • Slovak
  • Slovenian
  • Spanish
  • Spanish (Latin America)
  • Swedish
  • Thai
  • Turkish
  • Vietnamese

(Language availability may vary slightly per update)

To play Secrets of Kiel, you only need a charged smartphone with internet access and GPS enabled. The game is fully digital, self-guided and played outdoors while exploring Kiel.

We recommend wearing comfortable walking shoes, as you’ll stroll through streets and squares, and bringing a fully charged phone or power bank so you can enjoy the entire experience without interruptions.

Other than that, just bring your curiosity and sense of adventure and discover Kiel at your own pace!

Your favourite City Games, professionally hosted by our team

Enjoy the same City Games as our self-guided version, but with full on-site support from our professional hosts. We take care of the briefing, tablets, coordination and technical support, so your group can focus entirely on the fun and competition.

What’s included:

  • Same City Game, fully hosted
    You play the exact same experience as our self-guided version, now with our hosts guiding your group.
  • Live ranking & prize ceremony
    For larger groups, our hosts reveal the final scores and announce the winning team with a fun award moment.
  • Hosted start & finish
    We welcome your group, explain the game clearly and end with an exciting wrap-up.
  • Real-time support during the game
    Our team assists with devices, app issues and coordination throughout the experience.
  • Tablets included (optional)
    Available for groups who prefer using our devices instead of their own.

Trusted by teams worldwide, from small groups to large corporate events.

Plan your group event

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Ready for an unforgettable adventure?

Explore Kiel in a unique and interactive way with our Secrets of Kiel City Game. Play today and create lasting memories!