For this game you'll need any smartphone one of the installed browsersers: Google Chrome (Android) or Safari (IOS).

Checking GPS:

Make sure you allowed to use geoLocation on your smartphone
If you can see the location mark on the map below - all is fine. Game zone is marked by 1km-blue circle. Try to avoid large closed areas during game.

Check Gyro and Sensors:

Tap the map-center dot icon in bottom-right. This will center your map by your position and enable compass mode. If your compass shows wrong orientation, that's not a big deal, you still fine to play..

Check camera and microphone:

Check voice recognition

Check Player's IQ minimum level

Where's north on the map? Show answer on top