Robot simulator inspired by Sim.I.Am
GMES is a free Python package for FDTD electromagnetic simulations.
Analyze molecular simulation data
Multiscale Neuroscience and Systems Biology Simulator
Molecular dynamics with aqueous-organic solvent mixtures
TCAD Device Simulator
A FDTD solver for electromagnetic wave simulations on a GPU cluster
BlueSky Open Air Traffic sim, (Windows/Linux/Mac, Python 2.x based)
Create lipid-bilayer models of arbitrary geometry.