Frederick's Little Detectives: Solve the Case!

Someone stole the Sensi-Stone — the source of all sight, sound, smell, taste, and touch! The sky has lost its color, the birds no longer sing, and even the bakery doesn’t smell like fresh cakes.

You play as a very clever detective and, together with your friends and family, you must track down the missing stone and return it to its rightful place in the city square.

Can you find it and bring all the senses back before it's too late?

• Interactive clues & mini-games that teach sight, sound, taste, smell and touch
• A 60- to 90-minute self-paced route in the heart of the city
• Team play – kids recruit parents, siblings or friends to solve puzzles together
• Digital “Sense Badges” and a printable hero certificate at the finish line

• Built with experts
  The game was co-created with a licensed therapist to ensure age-appropriate challenges that nurture sensory processing and social skills.
• Used by teachers in kindergartens and primary schools as a hands-on learning activity that meets early-years curriculum goals.
  

• Combines outdoor fun with hands-on learning
• Designed specifically for ages 4–8, with adult guidance built in
• Screen-light: phone only for the Questo app—everything else is real-world exploration
  

• One ticket unlocks the quest on one device (up to 4 kids can share).

• Children must be accompanied by an adult guardian.

• Start any time between 10 am and 6 pm.

• Bring comfortable shoes, charged smartphone and a big sense of adventure!

Ready to help the city feel, see, hear, smell and taste again? Click Get Tickets and join the Sense Seekers!

This is an outdoor exploration game perfect for families with kids! You will be playing by yourself, fully guided by the Questo mobile app on your smartphone and explore beautiful and safe spots in your city. Alonge the way, you will be solving puzzles and learning about human senses. The experience is 100% private and you only need your phone to play.

1.Buy your tickets & check the confirmation email 🎫

2.Download the on your smartphone 📲, login with your email and find the game inside your profile page 🔓.

3.Head outdoors to the Starting Point & start the activity. DO NOT ENTER ANY BUILINGS! The activity takes place outside and the Questo app will guide you all the way.📍

Questo is your ticket to real-world adventure, blending storytelling with thrilling exploration! 🌍✨ Powered by local creators, our immersive, self-guided games are available in over 500 cities worldwide. Join the 1,000,000+ explorers who’ve turned ordinary walks into epic quests! 🗺️🔎 Discover hidden gems, solve fun puzzles, and create unforgettable memories along the way.

Ready to start? Begin your adventure now at !

💡New to Questo? Check out our Player’s Guide for everything you need to know before you start!

Know what’s Happening Next — before everyone else does.

Get App

Host or Publisher Questo - City Exploration Games