Binary package “xscreensaver-gl-extra” in ubuntu eoan

Extra GL(Mesa) screen saver modules for screensaver frontends

 XScreenSaver is a modular screen saver and locker for X11,
 containing more than 200 screen savers.
 .
 This package contains the rest of the 3D (OpenGL) screen saver
 modules from the xscreensaver collection. This package can be used by
 xscreensaver and also some other screensaver engines.
 .
 This is the set of GL screensavers not shipped by default with
 xscreensaver-gl:
 antmaze, atlantis, blocktube, boing, bouncingcow, boxed, cage,
 carousel, companioncube, crackberg, cube21, cubenetic, cubicgrid,
 dangerball, extrusion, fliptext, flurry, glhanoi, glplanet, handsy,
 hilbert, hypnowheel, jigsaw, juggler3d, klein, lament, menger, noof,
 photopile, pinion, providence, rubik, rubikblocks, sballs, skytentacles,
 sproingies, stairs, starwars, surfaces, tangram, timetunnel, tronbit,
 unknownpleasures.
 .
 More display modes can be found in the xscreensaver-data,
 xscreensaver-data-extra and xscreensaver-gl packages.