XScreenSaver: A collection of free screen savers for X11 and MacOS Not until you begin to go through this amazing, comprehensive collection of screen savers do you begin to comprehend how many 200 is. That's right... download the full package of XScreenSavers and you'll have over 200 .saver files to check out. Fortunately, the author has a very nice page showing screenshots of each and a brief description. (The author created a lot, but not all, of these... many are collected as OS X ports from other distributions.) So, if you're looking for something to do on a slow evening, this will definitely keep you entertained!