A real time outdoor escape game based on Ionic3 and Firebase, specially designed for 50-200 alumni and students within the school of EEE in NTU. Users can use this app to participate the outdoor escape game event on 24 March 2018. Features and functions include real-time game syncing, auto-login, real-time communication, solving puzzles, google map, in-page doodling, team-ranking, team grouping, image uploading & camera, open platform for the other students to edit and organize their own game, etc.