Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Circuit Simulator - Animated electronic circuit simulator using ideal components to visualize voltage and current.
Autodesk 3DS Max - 3ds Max is software for 3D modeling, animation, rendering, and visualization. Create stunning game enrivonments, design visualizations, and virtual reality experiences.
LTspice - LTspice® is a high performance SPICE simulation software, schematic capture and waveform viewer with enhancements and models for easing the simulation of analog circuits.
Cinema 4D - Cinema 4D is a 3D modeling, animation, motion graphics and rendering application.
Circuit Solver - Circuit Solver uses a simple drag and drop approach to building circuits.