Mindball is a two person game controlled by players’ brain waves in which players compete to control a ball's movement across a table by becoming more relaxed and focused. Mindball is produced by the Swedish Company Interactive Productline. The concept, introduced in 2005, originates from the prototype Brainball which was developed by the Smart Studio at The Interactive Institute also in Sweden. In the Chicago Museum of Science and Industry, there is a Mindball station where you can play. There are only 7 Mindball tables in North Americas so far. The first ball that was used was blue but it is now a white ball played with in every game hosted around the world.
What is novel about Mindball is the neurofeedback aspect. A similar setup dubbed Will Ball has been realized back in 1974 though it processed biofeedback. A decade later a computer version existed.