This project involves designing and building a computer game to teach principles of green building, renewable energy, and energy efficiency to youth. The premise of the game positions players as safeguards/heroes responsible for resolving environmental problems across the globe. Players are assigned a set of tools and the solution to various problems and are prompted to proceed. Players win higher scores by making prudent decisions but also learn about the tradeoffs resulting from the choices theymake. The idea is to provide an interactive and fun way to learn about sustainability for the built environment. Students in the UCSC Game Design major were mentored by Mike Parisi, an independent game design entrepreneur, and Thomas Rettenwender of EcoLogicDesign.