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.

Cisco Packet Tracer - Download Cisco Packet Tracer, an innovative network simulation and visualization tool used by Cisco Networking Academy students and instructors.

MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming

GNS3 - GNS3 is a graphical network simulator that allows simulation of complex networks.

Actran - Actran is a finite element-based simulation software to analyze the acoustic behavior of mechanical systems and parts.

Paessler Multi Server Simulator - Paessler Multi Server Simulator is inexpensive and robust software that helps you power massive-scale testing.