Active Ageing, the preservation of the potential for achievement and development in old age, is a societal concern and neuropsychological assessments are part of psychological clinical studies. Although approaches are based on stable principles, Serious Games with designs based on neuropsychological tests can enable data collection and analysis useful for medical evaluation. This study developed and tested a game (Sorting Sheep) to be applied in cognitive stimulation with older adults providing, at the same time, useful information about the performance of the player. Meaningful correlations have been found between aspects of performance and the standard MoCA test, when the game is calibrated for a population with cognitive conditions.