Kigo is an open-source implementation of the popular Go game. Go is a strategic board game for two players. It is also known as igo (Japanese), weiqi or wei ch'i (Chinese) or baduk (Korean). Go is noted for being rich in strategic complexity despite its simple rules. The game is played by two players who alternately place black and white stones (playing pieces, now usually made of glass or plastic) on the vacant intersections of a grid of 19x19 lines (9x9 or 13x13 for easier games).

Numix is a modern flat theme with a combination of light and dark elements for any GTK-based desktop environment, including GNOME Shell, Unity, MATE, Cinnamon and more.

Konversation is a client for the Internet Relay Chat (IRC) protocol. It is easy to use and well-suited for novice IRC users, but novice and experienced users alike will appreciate its many features:

The Common Open Research Emulator (CORE) is a tool for emulating networks in one or more machines. You can connect these emulated networks to live networks.

MPDCon is a simple GNUstep controller for MPD (Music Player Daemon). It has minimalistic graphical interface, although it provides the basic features an MPD client is supposed to offer.

hexter is a software synthesizer that models the sound generation of a Yamaha DX7 synthesizer. It can easily load most DX7 patch bank files, accept patch editing commands via MIDI sys-ex messages, and recreate the sound of the DX7 with great accuracy.