Peg Solitaire is a board game for one player involving movement of pegs on a board with holes. The game fills the entire board with pegs except for the central hole. The objective is, making valid moves, to empty the entire board except for a solitary peg in the central hole.

The GNOME Shell provides core interface functions like switching windows, launching applications or see your notifications. It takes advantage of the capabilities of modern graphics hardware and introduces innovative user interface concepts to provide a delightful and easy to use experience. GNOME Shell is the defining technology of the GNOME 3 user experience.

projectM is an iterative music visualization library which uses OpenGL for hardware acceleration. It is compatible with Milkdrop presets.

Kwave is a sound editor designed for the KDE Desktop Environment.

The GNOME Chemistry Utils provide C++ classes and Gtk+-2 widgets related to chemistry. They will be used in future versions of both gcrystal and gchempaint.

HyperRogue is a game in which the player collects treasures and fights monsters -- rogue-like but for the fact that it is played on the hyperbolic plane and not in euclidean space.