TiMidity++ is a very high quality software-only MIDI sequencer and MOD player. It uses sound fonts (GUS-compatible or SF2-compatible) to render MIDI files, which are not included in this package.

Wavemon allows you to watch signal and noise levels, packet statistics, device configuration and network parameters of your wireless network hardware.

FractalNow provides users with tools to generate pictures of various types of fractals quickly and easily.

GNOME Flashback continues the traditional desktop interface which was used in GNOME 2.x, but using modern GNOME technologies.

FS-UAE is a cross-platform Amiga emulator based on updated emulation code from WinUAE. FS-UAE uses SDL for input, OpenAL for audio and OpenGL for graphics.

VisualBoyAdvance is a Game Boy Advance emulator that works with many ROMs that are publically available. It features save states (like those that are available in ZSNES), full screen support, joystick support, the all-important 'speedup emulation' key for impatient gamers, and a lot more.