Liquid War is a unique multiplayer wargame. Its rules are truely original and have been invented by Thomas Colcombet. You control an army of liquid and have to try and eat your opponents. A single player mode is available, but the game is definitely designed to be multiplayer, and has network support.

Angband is a free, single-player dungeon exploration game where you take the role of an adventurer, exploring a deep dungeon, fighting monsters, and acquiring the best weaponry you can, in preparation for a final battle with Morgoth, the Lord of Darkness.

* tiling window management: dynamically positioning and sizing windows by applying a specific layout selected by key stroke, leaving no blank space
* tagging: like virtual desktops - tagging windows with a number and restricting the view to windows with the same tags and showing windows on one or more views
* status bar: displaying information about the active tags/views, layout, window and system.

AutoHotkey is a free, open-source utility for Windows. With it, you can:

* Automate almost anything by sending keystrokes and mouse clicks. You can write a mouse or keyboard macro by hand or use the macro recorder.
* Create hotkeys for keyboard, joystick, and mouse. Virtually any key, button, or combination can become a hotkey.
* Expand abbreviations as you type them. For example, typing "btw" can automatically produce "by the way".
* Create custom data-entry forms, user interfaces, and menu bars. See GUI for details.

PyKeylogger is a free open source keylogger written in the python programming language, available under the terms of the GNU General Public License. I threw it together one day after not being able to find a simple and trustworthy (as measured by the availability of source code) keylogger for windows, and it sort of snowballed from there. It is currently available for Windows (NT/2000 and up), and Linux (using Xlib, so won't work on the console).

Midnight Commander is a console application with a text user interface. The main interface consists of two panels which display the file system. It is used in a similar way to many other programs run in the Unix shell. Arrow keys control file selection, the insert key is used to select files and the Function Keys perform operations such as renaming, editing and copying files. Later versions of the Midnight Commander additionally have mouse support for easier operation. Such versions are aware of GPM and X terminal emulators which support mouse reporting.

GNetWatch is a free open source Java application that offers real-time graphical monitoring and analysis of network performance through SNMP and ICMP. To get an instant view of the network state, data are collected, stored and displayed every few seconds. Two traffic generation modules are available. The former can flood UDP packets of any size (jumbo frames for instance) and tagged with any DiffServ/ToS flag for QoS and class of services testing. The latter can generate a huge quantity of parallel requests to any HTTP(s) server, for web applications load testing.

WinDirStat is a disk usage statistics viewer and cleanup tool for Microsoft Windows (all current variants).

Features

WinDirStat reads the whole directory tree once and then presents it in three useful views:

* The directory list, which resembles the tree view of the Windows Explorer but is sorted by file/subtree size,
* The treemap, which shows the whole contents of the directory tree straight away,
* The extension list, which serves as a legend and shows statistics about the file types.

RawWrite (or rawrite) is an essential tool for creating boot disks and other floppy disk images. Traditional rawwrite programs do not run under modern versions of windows so here is the Win32 version which does.

FreeTrack is a free optical motion tracking application for Microsoft Windows, released under the GNU General Public License. Its main function is inexpensive head tracking in computer games and simulations but can also be used for general computer accessibility, in particular hands-free computing. Tracking is sensitive enough that only small head movements are required so that the user's eyes never leave the screen.