Cortex challenge is the exciting new brain busting card game by esdevium games which uses the same fast paced approach to family fun popularised by dobble and jungle speed cortex challenge tests up to six playersrsquo memory cognition and sensory perception it even includes texture cards that are used during lsquotouch challengesrsquo where players must guess what they are feeling adding a unique element that is often neglected in games playersrsquo brain powers are stretched to the max