RT-LAB - OPAL-RT’s mission is to provide cutting-edge real-time simulation technology to engineers and researchers around the world.
FlexSim - Simulation software to model, simulate, predict, and visualize systems in manufacturing, material handling, healthcare, warehousing, mining, etc.
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
ns-3 - a discrete-event network simulator for internet systems
SIMUL8 - Simulation is an effective system that permits you to make striking, certain choices since it gives you the confirmation to make certain you are settling on the right decision.
Paessler Multi Server Simulator - Paessler Multi Server Simulator is inexpensive and robust software that helps you power massive-scale testing.