The PDL module gives standard perl the ability to COMPACTLY store and SPEEDILY manipulate the large N-dimensional data sets that are the bread and butter of scientific computing.
Conquest is a Unix/C port of a real-time, multi-player space warfare game that was originally written in RATFOR for the VAX/VMS platform by Jef Poskanzer and Craig Leres. It supports both curses and OpenGL interfaces. Sound is supported as well.
A basic 3D environment with a first-person POV
Despite being more graphically advanced than my 2D game engine, it isn't as well developed. Its original name was "3DWorld" because it simulated a 3-dimensional environment -and that's pretty much all it does. You can move around, pick up a cube, and jump using typical FPS controls. I started to implement the ability to shoot but it's still incomplete. This project has been put on hold in order to focus on my 2D game engine.
ZTK C Object-Oriented user interface library (GLUT-based)
Coypu is an abstract layer, graphic widgets implementation. It is written in C and is highly portable to most architectures and software/hardware backends (X11, Directfb, GLUT, SDL, WIN32). Being fast and light, it's mainly targeted at embedded devices.
is a interactive molecular visualisation program designed especially designed for coarse-grained simulation of non-spherical particles. Ellipsoids (Gay-Berne), disks, and custom shaped uniaxial particle (e.g. pear-shaped particles) can be represented.