FlightGear Flight Simulator: free open-source multiplatform flight sim
System dynamics program with additional features for economics
Object-oriented equation-based modelling and optimisation software
Plug&Play Hardware simulation over a virtual bus system.
Random phenomena generator
software for DFA method
Agent-based simulation toolkit
OpenM++: open source microsimulation platform
A multi-modeling and simulation environment to study complex systems
A framework for implementing real-time control systems
Political economy simulation toolkit
Simulated Airline Travel Solution Provider Library
Deterministic simulator of mass-action based models
MGSyn - Automatic Synthesis for Industrial Automation
Otanes is a live TV simulator for Content-Centric Networking (CCN).