This report documents the development of a concept and prototype for a mobile application with the purpose of making the megalith graves surrounding the town of Falköping more engaging and interactive for visitors. Because of the limitations of working with heritage sites that cannot be altered to support a gaming experience, the usage of escape room game mechanics is explored. Because escape room games depend on the user's observation and exploration of their environment, they serve as a usable inspiration for applications with the purpose of making visitors experience a location in a similar way. The prototype developed for the project contains puzzles designed for four different megalith grave sites which were then tested with groups of children and parents playing together.