kscreensaver software package provides additional screensavers for KScreenSaver, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install kscreensaver
kscreensaver is installed in your system.
Make ensure the kscreensaver package were installed using the commands given below,
$ sudo dpkg-query -l | grep kscreensaver *
You will get with kscreensaver package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | KDE |
| Package | kscreensaver |
| Version | 4:4.14.2-1 |
| Description | additional screensavers for KScreenSaver |
| Sub Section | KDE |