GNU Backgammon is a strong backgammon program (world-class with a bearoff database installed) usable either as an engine by other programs or as a standalone backgammon game. In addition to supporting simple play, it also has extensive analysis features, a tutor mode, adjustable difficulty, and support for exporting annotated games. It can be played either from a GTK+ graphical interface, optionally with a 3D board, or from a simple text console.

Chocolate Doom aims to accurately reproduce the original DOS version of Doom and other games based on the Doom engine in a form that can be run on modern computers. Unlike most modern Doom engines, Chocolate Doom is not derived from the Boom source port and does not inherit its features (or bugs).

sdlBasic is a small, efficient and multiplatform BASIC interpreter for creating games using the power of SDL library. It was inspired by the old and glorious AMOS.

Fyre provides a rendering of the Peter de Jong map, with an interactive GTK+ frontend and a command line interface for easy and efficient rendering of high-resolution, high quality images.

pycode-browser is part of the project PHOENIX, i. e. Physics with Home-made Equipment & Innovative Experiments, developed at Inter University Accelerator Centre, New Delhi. It allows students to browse Python source code easily, and to understand what this code means.