You play the role of a 9 year old boy in his absolute dream: a world made of sweets! Guide Nikwi through his dream to eat everything in each of the 30 levels, while you avoid the monsters who try to turn Nikwi's dream into a nightmare.

xdotool lets you programmatically (or manually) simulate keyboard input and mouse activity, move and resize windows, etc. It does this using X11's XTEST extension and other Xlib functions.

SANE stands for "Scanner Access Now Easy" and is an application programming interface (API) that provides standardized access to any raster image scanner hardware (flatbed scanner, hand-held scanner, video- and still-cameras, frame-grabbers, etc.). The SANE standard is free and its discussion and development are open to everybody. The current source code is written to support several operating systems, including GNU/Linux, OS/2, Win32 and various Unices and is available under the GNU General Public License (commercial applications and backends are welcome, too, however).

A third-party plugin for the Pidgin multi-protocol instant messenger. It implements the extended version of SIP/SIMPLE used by various products:

GPL Ghostscript is used for PostScript/PDF preview and printing. Usually as a back-end to a program such as ghostview, it can display PostScript and PDF documents in an X11 environment.

criticalmass, aka critter, is a shoot-'em-up in the style of Galaxian with very colorful and smooth graphics (provided that you have 3d acceleration)