The development of smartphone technology is so fast, especially in the field of entertainment or entertainment. One of the entertainment media from a smartphone is an Android-based game. Game can also be interpreted as a goal that the player wants to achieve or a set of rules that indicate what the player does and what cannot be done. Game genres that can be played via smartphones are very diverse, including: Action Games, Role playing Games (RPG), Strategy, Racing, Sports, Puzzles, and Word Games. In this study, the genre of Action RPG Games is made using the Luther method, the Luther method, with reference to the Luther-Sutopo version of the multimedia development methodology. The aim of this research is to make it easier for children to learn and understand the formulas of flat and space structures. The result of this research is an educational game for the introduction of flat form formulas and RPG space shapes in which there is a science of mathematical formulas that are implemented into the game