This study aimed to determine the feasibility of educational game-based learning media in online learning activities, to determine students' responses to the use of the media, and to reveal students' understanding of the material by using the media. This was a Research and Development of Sugiyono's model. The participants were grade VI teachers and students at SD Negeri Karang Tengah 6. The data were collected using interviews, questionnaires, and observations. This study obtained the feasibility score examined by material and media experts, it can be seen that the result of material experts was 80 and the result of media experts was 82.6. The results of the trial conducted in the small group obtained a score of 96 and 93.4 in the large group. These scores indicated the very feasible criterion to use in teaching and learning activities and the responses of teachers and students showed a good response to the use of educational game-based learning media in learning activities.