As educators seek innovative ways to engage students in the learning process, educational escape rooms have emerged as a promising motivational learning strategy. This paper presents a study on the design and playing of such escape rooms by pre-service secondary mathematics and informatics teachers using online tools. The study involved students collaboratively creating their escape rooms and introducing them to their peers. We gathered data through observation, questionnaires, evaluation cards, and their webpages regarding their opinions on the potential of these rooms as a teaching tool. Results indicate that most students found the educational escape rooms to be highly engaging and useful in promoting collaboration, and problem-solving skills. Therefore, they are open to using educational escape rooms in their future teaching. The study sheds light on the potential of student-led design of educational escape rooms as a means of preparing future teachers to incorporate this motivational tool into their teaching practice, with implications for teacher education programs and classroom practice.