The “Call of Invest” mobile game is designed to provide children with investment knowledge in a playful manner. School classes receive a code from their teacher to access the game. After the player has designed his avatar and has been introduced to the story of the game, he can buy his first bond - guided by his investment buddy. Daily wages and dividend payments provide an incentive to play regularly. Daily tasks and quizzes keep the student in the app and deepen its investment knowledge.