FCE Ultra X [FCEUX] is an emulator of the original (8-bit) Nintendo Entertainment System (NES) released under the GNU General Public License (GPL). It includes the following features (and many more):

KeyTouch Editor should be used to create configuration files for KeyTouch, a program to configure extra function keys in multimedia keyboards, in case your keyboard is not yet supported.

Tenes Empanadas Graciela is a clone of Plan Tactico y Estrategico de la Guerra, based on Risk.

mate-screensaver is a screen saver and locker that aims to have simple, sane and secure defaults, and be well integrated with the MATE desktop.

Comix is a comic book viewer. It reads zip, rar, tar, tar.gz and tar.bz2 archives (often called .cbz, .cbr and .cbt) as well as normal image files. It is written in Python and has a simple user interface using PyGTK.

jackEQ is a tool for routing and manipulating audio from/to multiple input/output sources. It runs in the JACK Audio Connection Kit, and uses LADSPA for its backend DSP work, specifically the DJ EQ swh plugin created by Steve Harris, one of jackEQ's main authors.