FAIR Chemistry's library of machine learning methods for chemistry
Geographic library
An advanced network simulator to design and configure virtual networks
A portable, multi-platform, command-line driven graphing utility
A cross-platform statistical package for econometric analysis
Open Source Computer Vision Library
FlightGear Flight Simulator: free open-source multiplatform flight sim
Computer Algebra System written in Common Lisp
Model Railway CAD program
A planetarium software that shows a 3D simulation of the night sky
fast C++ library for linear algebra & scientific computing
GPS log file viewer and analyzer
Robocode is a programming tank game for Java
C++ library for half precision floating point arithmetics.
General Mission Analysis Tool
Library to control radio transceivers and receivers