Simple physics simulation of Curvilinear and Rectilinear Motions
CReST: The Cloud Research Simulation Toolkit
For comparison of simulation and experimental scattering data
Weighted Implementation of Suboptimal Paths (WISP)
MIT's spacecraft simulator for control algorithm development
A Library for Interactive Modelling and Visualisation
Common accessible environment for system dynamics simulation.
A simple hydrodynamic code less than 700 lines long!