https://play.google.com/store/apps/details?id=computerart.club.renpy.one
You play a student in the Computer Art Club during a ten week course as a series of bizarre events begins to unfold. During each class you decide what you will do, your choices will affect your skills and perhaps even the future of the world!
Each student coded and created the images for one week, as far as I know, they were the first elementary school students to code an app with Renpy and possibly even the first elementary school students to make an android app.