This a small game I made for the 35th Dhiraagu Anniversary where I hid 500 or so QR codes around the whole finance department floor and the person who finds the most QR codes by the end of the day wins. The game had a leaderboard at the home page to keep track of their progress. I made it in a few hours the day before and it was a lot of fun. They managed to find all of the codes. All except one. Not even I remember where I hid it. I still keep finding random codes to this day.
Send me a message! Don't worry it's free!