The essential and best Civil3d packages for me are:
* Civil3d Toolkit ("official" Autodesk package)
* Camber (Open soure project from a guy called "mzjensen " who is unbelievable helpful and rapidly developing new features (Camber Feedback Thread)
* Arkance Systems (Another project that was made available - a ton of useful nodes. ( Arkance Systems Feedback Thread)
I use it mainly to cover up Civil3ds abysmal BIM-functionality. (Assigning propertysets to objects, creating solids with model informations,...). Right now I'm fooling around with projecting map-data (Shapes) to cross sections and profile views and there's a lot of small, but really helpful stuff where Civil3d would just fall short.
(E.g. "Create an alignment label that labels the difference between two profiles").
I found it a bit buggy and unstable but ever since C3d 2022 it works quiet well (and C3d 2023 is a lot better, even).
The potential is huge and the fact that I, a complete idiot, can do stuff I always wanted to do but never could because I was too lazy to learn LISP is really nice. 🙂
(You can connect nodes to a python node and hack away)
Trying stuff out is also really fast: you don't have to compile anything or save and reload a lisp file. Just arrange some nodes and hit play. On a good day it's a lot of fun and I definitely would like to get deeper into it - just a matter of available hours!