FlexSim - Simulation software to model, simulate, predict, and visualize systems in manufacturing, material handling, healthcare, warehousing, mining, etc.
EcosimPro - EcosimPro is a continuous and discrete modelling and simulation software.
ns-3 - a discrete-event network simulator for internet systems
RT-LAB - OPAL-RT’s mission is to provide cutting-edge real-time simulation technology to engineers and researchers around the world.
Paessler Multi Server Simulator - Paessler Multi Server Simulator is inexpensive and robust software that helps you power massive-scale testing.
NetSim - NetSim software was created to simulate various Cisco systems. Cisco software is known around the world as being one of the best network, routing and switch systems for businesses and private use. Read more about NetSim.