The Summer School, held from 07-11 July 2025 at Hochschule der Medien (Stuttgart Media University) combines first-hand experiences of simulations and games, with theoretical analysis and in-depth discussion of key issues in the field of simulations and games as educational tools and strategies. It has evolved as a collaborative, invigorating, and rewarding space for personal skill development, the launching of new research projects, support for innovative and challenging uses of simulations and games and a time to expand networks and writing partnerships. International Participants are highly appreciated, who are willing to explore the relevant topics to develop their skills. Bachelor students are dedicated to make and learn how to design games. Future Researchers are dedicated to design, develop and deliver Gamebased Research.