The use of serious games (SGs) for different purposes is increasing. The development of successful and effective SGs requires a team with professional knowledge from different areas and a joint understanding of the SG development process. The research goal was to find a way to educate multidisciplinary students via an e-learning course about SGs. An action research study was initiated, and social constructivism theory-based e-learning courses on SGs were developed. The Carpe Diem Learning design method was used in the planning phase, followed by three iterations on course development and implementation. The feedback and observations were analysed in each iteration, and changes to the courses were made according to them. This iterative development and incremental improvement of an online course according to feedback was found to be a good approach.