TE6S is a package of simulation software tools developed by the German company Licefa. It is a library of libraries for the simulation of technical systems, providing a graphical user interface for engineers to create 3D simulations of technical systems. It consists of several components, including an equation editor, a graphical editor for creating 3D motion, visualization tools, an animated model editor, an event list editor and an animation script editor. The TE6S library can be used for the modelling, simulation, and visualization of machines, systems, and processes. It is designed to simplify the development of virtual prototypes. The package also provides analysis capabilities such as the visualization of complex systems and their behaviour in real time. It is suitable for a range of application areas such as robotics, automation and mechatronics, medical systems, automotives and manufacturing.