This scene was built to study the abilities of houdini procedural asset creation. All level was created in semi-automatic mode by houdini engine, including lighting.
https://www.unrealengine.com/marketplace/en-US/slug/scifi-level-builder
If you want to learn how to create Procedural Environments with Houdini: https://gum.co/houdini_for_game
Sci-Fi Level Builder
Sci-Fi Level Builder Tutorial