The article aims at assessing the effectiveness of a role-play in addressing two concerns: clarifying the concept of sustainable development and teaching sustainable development issues. The effectiveness is gauged by surveying students to reveal how the game matches a set of "significant learning" criteria defined by Fink (2003). Firstly, our article brings a short overview of how the concept of sustainable development has emerged and spread over time. Secondly, in order to assess the learning potential of our role-play, we examine how it addresses the six components of Fink's taxonomy of "significant learning": (i) foundational knowledge, (ii) application, (iii) integration, (iv) human dimensions, (v) caring and, (vi) learning how to learn. This taxonomy is analysed through a rigorous assessment methodology. The assessment shows that our role-play is highly praised by the players as it not only brings them foundational knowledge, but also allows them to enhance many skills. Thus, the framework of this role-play contributes to educating about sustainable development as well as educating for sustainable development.