A simple hydrodynamic code less than 700 lines long!
VEX Robotics Competition Simulator
VOpR - a virtual optical rail
Plugin orientated Discrete Dipole Approximation (DDA) Solver
TEBD simulates the dynamics of entangled quantum many-body systems.
Open source codes related to dissipative particle dynamics
Online XOR packet coding BENEFIT
SaaS for running simulation models in the cloud
realistic truck simulator with 3D graphics done from zero
3D vehicle simulator based on Lagrangian dynamics to simulate dynamics
Visu@lGrid - IDE for Building BOINC Projects
ParallelSim is a parallel processor simulator written in java.
realistic truck & car simulator, with OpenGL graphics
The educational lattice Boltzmann code
black_rhino is a multi-agent simulator for financial network analysis
A library that allows programs for a NI CRIO to be run on a computer.
As of 2012-12-18, this project may now be found at Google Code.