we are launching a free IT game with many prizes to win, the idea is to find geolocation points around Sydney and solve technical challenges there, it has been started few day ago. The game will last for 5 weeks, there are many prizes to win every week and at the end.
To play the game (from a mobile): https://hidden-tech-challenge.octo.com.au/sydney/
The landing describing the game: https://hidden-tech-challenge.octo.com.au/landing/
Hope you will enjoy the idea