VisualAivika - Visual Simulation Tool
VisualAivika is a simulation tool for System Dynamics and Queueing Systems.
VisualAivika allows solving ordinary differential equations (ODE) and modeling queue networks. It has charting capabilities.

Documentation
VisualAivika 9
VisualAivika 9 with Equation Compiler
This version uses Equation Compiler to make simulation more fast, but .NET 10 must be installed on the computer.
Download VisualAivika 9 with Equation Compiler for Windows x64
Download VisualAivika 9 with Equation Compiler for Linux x64
Additional Documentation