Games Based Learning needs to be linked to good learning theory to become an important educational intervention. This study examines the effectiveness of a collection of computer games called Neurogames®. Neurogames are a group of computer games aimed at improving reading and basic maths and are designed using neuropsychological theory. The effectiveness of Neurogames was assessed using a matched pairs experimental design. Short exposure to Neurogames resulted in a significant increase in mathematical ability compared to control. The games resulted in a significant increase in reading ability. The study shows that brief exposure to computer games can result in significant changes to academic development. The implications for education and further research are discussed.