I use Dynamo in Civil 3D all the time which allows plenty of AutoCAD functionality. Is there any way for someone who just has vanilla AutoCAD to run Dynamo or even just Dynamo Player?
Dynamo sandbox has the capability to access the AutoCAD API via interop with the LinkDWG package. It will mean your graphs will have to be re-written with those nodes instead of the Civil 3D nodes as they rely on direct access to the application which you won’t have by launching Dynamo Sandbox instead of the direct integration. The methods, limits, and performance will be different from the Dynamo for Civil, but you’ll be able to work with it.