A cross-platform statistical package for econometric analysis
FlightGear Flight Simulator: free open-source multiplatform flight sim
Numerical models for chemical and process engineering
Growing suite of proteomics simulations for educational purposes
Physics Game like "The Incredible Machine"
Plugin for Repast Simphony that supports storage of results in a DB
Common accessible environment for system dynamics simulation.
VOpR - a virtual optical rail
Software package that facilitates traffic simulation