Hellish Ruins Mini Pack

Create your own personal hell using these crumbling walls, piles of rubble and skeletal remains.
What Is A Mini Pack?

A small, affordable collection of professionally crafted assets that you can add to your Unreal or Unity project. These packs are meant to save your artists from having to build every little detail in a scene. Use their time for something more valuable- like iconic vistas or hero props.

Even if these are not exactly what you need, maybe they're far enough along that your artists can tweak them a little to get what you need.