mpflow is a frontend to MPD (Music Player Daemon) with a CoverFlow(-like interface. Use it to flip through the albums in your music directory.
Sido is a mini MPD (Music Player Daemon) client written in C / GTK+ for the desktop's system tray. It allows you to remote control the daemon for play, pause, stop, shuffle, and switching to next or previous tracks.
A multiplatform, 3D space-combat MMORPG.
An infrastructure manager.