I am not 100% sure, but when I got to uni I used to hang out in the pinball room and play lots after observing lots first. As I didn't have stacks of cash to spend, it was an incentive to get good enough to win credits! As far as I can remember, the first one I played at uni was Eight Ball Deluxe - an absolute classic. There were others, and if I saw them again I might remember them, but the one that stood out and stuck in my mind was EBD.