Breakdown of the process and more details can be found in the challenge's thread:
https://www.artstation.com/challenges/dragons-rise-the-forgotten-realms/categories/165/submissions/71888#submission-update-306795
Unreal marketplace:
https://www.unrealengine.com/marketplace/en-US/product/9817030a80e2418e903df089351bcb4e
Testing unreal 5.2 PCG tools to create procedural environments using existing assets.
PCG graph setup