Spatial abilities are one form of knowledge among others and are fundamental for the orientation and appropriation of the environment for human beings. It is furthermore a success factor for STEM studies. While existing training methods are based on paper-pencil systems, we propose the development of an interactive, virtual and three-dimensional training software, built on a videogame basis. The resulting playful virtual environment will include a set of exercises that are consecutive and build upon each other in order to improve the player's spatial abilliy. The progress of the players will be tracked and compared to that of the other players. motivating them to improve.