XScreenSaver Alternatives
XScreenSaver is described as 'is the standard screen saver collection shipped on most Linux and Unix systems running the X11 Window System. The first version was released in 1992. In 2006, it was ported to macOS 10.4' and is an app in the os & utilities category. There are five alternatives to XScreenSaver for Mac, Windows, Linux, BSD and XScreenSaver. The best alternative is Fliqlo Screensaver, which is free. Other great apps like XScreenSaver are Gnome Screensaver, Briblo Screensaver, Xscreensaver for Windows and Brooklyn Screensaver.
A screensaver that displays the time using a flip clock.
gnome-screensaver is a new screensaver that can replace xscreensaver. It is designed to integrate well with the desktop and provide a control interface that is desktop neutral.
Movable brick block screensaver resembling Tetris with Legos.
XScreenSaverWin is a Windows port of XScreenSaver. 204 screensavers in XScreenSaver were ported. A few of the screensavers have some issues. Check the status page for more. (This app is no longer free or open source starting with v0.80.
Discontinued
No longer listed on author's website & no new release since March 2016.
Screen Saver by Pedro Carrasco based on the animations presented during Apple Special Event (October 30, 2018) from the Brooklyn Academy of Music, Howard Gilman Opera House.