The Debian distribution has a cool screensaver but for some reason if you do the default install from the GUI you do not get all of the options. One solution is to install using apt-get
I want the Matrix simulation for my computer but it did not come with the package when installed by the GUI
sudo apt-get install xscreensaver xscreensaver-gl-extra xscreensaver-data-extra
This command will fix my problem
sudo apt-get remove gnome-screensaver
You may need to research what packages you need or even uninstall competing packages