In order to address the problem of the structural underrepresentation of women in STEM degree programs motivational projects for study orientation are seen as a possibility to increase the proportion of female students. Therefore, this article deals with the theory-based development and implementation of a technical intervention to motivate female students to study a STEM program. The study is based on the design-based research approach, including a systematic literature analysis as well as qualitative interviews. The aim of the systematic literature analysis is to determine the current state of research on the framework conditions for motivational projects for female students in STEM subjects. The article provides an overview of the theoretical framework on which the program is based and outlines its structure. The program was implemented and tested for the first time in January 2024 with 61 pupils. Initial results and feedback from participants are positive. This paper explains the robotics workshop as an exemplary subject. Robotics has become increasingly important in industrial production in recent decades and plays a crucial role in modern manufacturing. Participants learn in a game-based way and acquire basic programming and robotics skills.