JASI - Java Event-Based Simulation Framework
The Repast Suite is a family of free agent-based modeling libraries.
TraceMetrics is a trace file analyzer for Network Simulator 3 (ns-3).
YASimCommander is a platform-independent editor for YASIM files.
Modeling and Simulation made NiCE!
Calculate various aspects of the Kontinuum RPG system.
VOpR - a virtual optical rail
As of 2012-12-18, this project may now be found at Google Code.
A library that allows programs for a NI CRIO to be run on a computer.
PetriNetExec a library for embedding Petri Nets into Java applications