QR Wild is a very cool site/network for QR Codes that I found out about from Edshelf. On this site a user can create, play, or find rules on how to build or play a QR code game. A very popular QR Code game is the scavenger hunt which is used all the time in education. These games can be played out in the real world and in a school setting and is a fun and innovative way to incorporate technology into the classroom.
I recommend checking out QR Wild by clicking here!!