The Repast Suite is a family of free agent-based modeling libraries.
Deterministic simulator of mass-action based models
Ein Simulator für Turingmaschinen
Ein Simulator für Registermaschinen
MGSyn - Automatic Synthesis for Industrial Automation
PDBManip is a free program for editing PDB (Protein Data Bank) Files
The 'runjags' R package and standalone JAGS extension module
SCADA Security Testbed
Simulation, analysis, and management of the movement of water
Simulator of G/G/k queue systems used in computer networks.
A finite volume groundwater simulator
Multiscale Neuroscience and Systems Biology Simulator
Spatial Interaction in Coral Reef Communities
Accurate and efficient Java library that simulates biological models
Performs SCOAP and PODEM algorighms on ISCAS89 Netlists.
Otanes is a live TV simulator for Content-Centric Networking (CCN).
Physics Game like "The Incredible Machine"