The Robot Character Maker is a BLEND file containing a procedural setup for creating custom robot characters. It is not an add-on, which means you will not have to install anything to start using it. Create characters in the downloaded file and then import them into any project file. Choose from the 36 included parts or create your own from the templates that you will find in the scene. When you are happy with the robot you have made, all parts are already correctly parented to an armature, ready to be animated.