Abstract: From experience, difficult subject matters are usually not well understood by students if only presented face-to-face. Practical exercises or project-based team work are valid instruments to tackle this problem. However, students are required to have a strong motivation and self discipline in order to stay involved. Strategies like game-based learning can help to foster intrinsic motivation and thus to improve the learning outcome. This paper presents a game that helps students to understand the structure and dynamics of mobile computer networks. In particular, the game is a pervasive, strategic adventure. It is designed for mobile devices, uses context information for the game play, and tightly interweaves digital and real-life environments. Based on an educational and technical conception, implementation and use of the game are described. Lessons learned from first experiments with the game lead to further directions of research and development.