This chapter investigates the development of a digital game on a social media platform which involved primarily youths as co-creators. As we are interested in the unfolding of the development process, we applied a process model for crowdsourced development as a framework to understand information systems development (ISD) as co-creation in a not-for-profit environment. Using innovation theory, we further discuss why co-creation fostered the co-creators to successfully carry out the investigated project. On this background, we provide lessons learned for practical use.