Houdini is an incredibly cool tool: https://www.sidefx.com/products/houdini/

One of the things I most dislike about tools like Blender is that it can be really hard to go back to earlier stages of the process and make adjustments. Most changes are destructive, even though they don't really need to be. I follow lots of digital artists on Twitter and some of them use Houdini, and the kind of stuff they can generate is just mindblowing.

I'd try it out myself if it weren't for the price; I've always been drawn to procedural creation as a bridge between what a person imagines and what they can get a computer to render.

Not terribly familiar with how things work in Houdini (and only dabbling in Blender a few times), but that's been compared to it.