San Mateo's Secret Society: Mystery Hunt

For centuries, this secret society has bended the fate of your city to their will. They control everything and you were never meant to find out. Presidents, CEOs, doctors, barbers — everyone is in the palm of their hand.

Your mission is to help a retired detective who's the only one who ever came close to exposing them. A whisper from the dark has tipped you off with a mysterious clue to start your investigation. You can bring your friends —or go alone. But remember this: once you start digging - there's no way back.

Will you expose the truth? Or will you become another name on their list?

This is a role-playing outdoor exploration game that combines the challenges of an escape room, the excitement of a scavenger hunt, and the suspense of a detective investigation! You will play by yourself, following instructions on your phone and searching through 12 iconic spots in your city to find hidden clues, decipher encripted messages and piece together the conspiracy.

This isn't your typical scavenger hunt - it's half detective story, half puzzle adventure, and 100% fun. Bring your lover, your friends and even your entire family see if you can work together and solve the mystery - it's fun for everybody!

WHAT MAKES IT SPECIAL❓

• 🔎 Search for hidden clues in the most iconic places in your city.
• 🦹‍♂️ Piece together the conspiracy as you go.
• 🧠 Test your intelligence with tricky puzzles and fun quizes.
• 🎓 Learn interesting facts about secret societies from around the world.
• 👣 Go on an interactive healthy walk and achieve your daily steps count.
• 👥 Challenge your friends to see who's the smartest in your group (we all know it's you).
• 📷 Capture funny & long-lasting memories and share them with everyone.

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 more than 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.

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Host or Publisher Questo - City Exploration Games