TorChat is a peer to peer instant messenger with a completely decentralized design, built on top of Tor's location hidden services, providing strong anonymity while being very easy to use

Fcitx is an input method framework with extension support, which provides an interface for entering characters of different scripts in applications using a variety of mapping systems.

Freeciv is a free clone of the turn based strategy game Civilization. In this game, each player becomes leader of a civilisation, fighting to obtain the ultimate goal: the extinction of all other civilisations.

Yelp is the help browser for the GNOME desktop. Yelp provides a simple graphical interface for viewing DocBook, Mallard, HTML, man, and info formatted documentation.

pip is the Python package installer. It integrates with virtualenv, doesn't do partial installs, can save package state for replaying, can install from non-egg sources, and can install from version control repositories.

Catfish is a handy file searching tool for Linux and UNIX. The interface is intentionally lightweight and simple, using only Gtk+3. You can configure it to your needs by using several command line options.