Py-Lepton is a high-performance, pluggable particle engine and API for Python. The engine is designed to be very flexible and does not rely on any other libraries directly. You can use it either with OpenGL (via pyglet or PyOpenGL), or with pygame by selecting the appropriate renderer. Examples are provided using pyglet and pygame. Note that this is in an alpha state, so expect the API to change somewhat in future releases.
GNU FreeDink is a portable and enhanced version of the Dink Smallwood game engine. It aims at running the original game as well as its D-Mods (Dink MODules, or add-ons), with close compatibility, under new platforms. The internals of the engines are being cleaned up to allow for portability and later improvements.
Adime is a library for constructing Allegro GUI dialogs in a way similar to scanf(), using a format string. Other features include a (customizable) 3d look and feel, 3d versions of some of Allegro's GUI procs, complete help in many formats (HTML, txt, chm, texinfo, man, devhelp, and RTF), and four example programs. Adime can currently be compiled on Linux, Windows/MinGW32, Windows/Borland C++, Windows/MSVC, DOS/DJGPP, DOS/Watcom, Apple MacOS X, and QNX.