Shareware: You can try this program, but this version has some limited features or time usage restrictions. You should purchase it in order to remove those limits.
Fractal Screen 1.0
GYRODROME Screensaver 1.00
Cyclone Screensaver Maker
Ultimate Fractal HD Video ScreenSaver, Seamless Loop, Full Screen for all Displays, Install and Uninstall Support, 15 Day TrialSystem Requirements:Display resolution of 1024x768 or higher