The IDEA Challenge 2022 prototyping dataset contains a total of 240 prototype entries with 1049 edges (connections) and can provide valuable insights into prototyping practices, offering practical knowledge for developing prototyping strategies and generating hypotheses for future studies. The data were collected using Pro2booth - an online platform which captured comprehensive information about prototypes and participating teams’ development process, including details about the creators, purpose, timing, and method of creation. It is particularly relevant to design researchers, engineering and design students, educators, and industry professionals seeking to enhance their prototyping skills and strategies. The dataset serves as a foundation for subsequent studies, allowing for comparative analyses, hypothesis verification, and trend exploration. It also has the potential to inform meta-analyses across similar design scenarios, providing a comprehensive understanding of prototyping processes.