Blender - Blender is the open source, cross platform suite of tools for 3D creation.
OpenModelica - OpenModelica – A Free Modelica Environment!
FreeCAD - An open-source parametric 3D modeler
SimulationX - SimulationX is a system simulation solution provided by ESI ITI. The company has been operating for over 25 years. The SimulationX software was introduced in 2015. Read more about SimulationX.
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
Inventor - Inventor is a 3D CAD software that lets you quickly create 3D models with embedded intelligence, intuitive workflows, and optimized performance.