Spatial reasoning relates to the imagined movement and transformation of objects and their relations and is considered an integral part of mathematics. Recent literature has identified that mental rotation, perspective-taking, and fluid reasoning all contribute to student success in mathematics; however, these effects differ for girls and boys (Harris et al., 2025) and may have different affordances for different mathematics content (Harris et al., in prep). The current study uses digital games to improve these three skills in Years 7 and 8 mathematics classrooms. This talk will include discussion of our findings to date and principles underlying the spatial intervention design.