ALife ScreenSaver is an OpenGL based screensaver that uses different "Artificial Life" rules to develop both interesting and beautiful patterns and then renders them on your display.
It knows more than 20 Cellular Automata rules from Life and Generations families and can render pictures in bmp-format on changing patterns. It looks then not so boring as usual and I hope you will like it.
There are also many other graphical and perfomance options available.
For example, you can change colour of rendering patterns, the way of output of pattern element, turn on and off dynamic light sources and choose different starting patterns.