Student Sports Center Eindhoven
The Student Sport Center is a sports facility located on the TU/e campus. The membership fee for a year is only 90€, and will give you access to all the facilities at times when they're free, and at other times organized activities by the 39 sports associations. Further, each association organizes an open practice each week. All told, the SSCE offers facilities to practice over 80 different sports.
More information can be found on their website, here.