When trying to sensitize adolescents for sustainability, innovative communication approaches are needed. In the outdoor escape “Zombie mission”, players follow a story and try to save the world by solving puzzles about sustainability topics with scientific information found in the university gardens. This study investigates to whom this scientainment approach appeals and whether it can impart knowledge and raise interest in science and the environment. A mixed methods approach was adopted using questionnaires and interviews. The results suggest that the game is a promising tool for communicating sustainability to adolescents, even those who may not have had prior interest in the environment or science. Participants enjoyed the activity and gained new knowledge as a result.