The document discusses the design of location-based learning games for formal education settings. It presents a puzzle board metaphor to help teachers customize their own location-based games. Three case studies are described where teachers designed games to have students learn about heritage sites. A mobile application called "QuesTInSitu" was created to implement the teachers' designs. Testing found students were engaged but design aspects like points scoring and hints needed refinement based on the learning context. The framework supported teachers in designing games for different educational purposes and assessing their impact on students.