Thanks for the reply!
I am 90% sure I will not expand on the Marble Face project.
This piece of a pie was too ambitious for me to chew. Good neighbors as witnesses and bad as cultists, arrest and dialogue systems, proceduraly generated clues placement and case building conclusion, all unique apartments and flooded basement, confrontation with Marble face and different ways to deal with him, etc.
So much was planned, but 2 weeks I spent with Budapest building and street building in Trenchbroom and one week with different characters (and only one human left in the final game). So I left with only 1 week to build detective character, cameras, writing, logic etc. And due to different viewports obscure culling was useless, therefore low framerate on anything other than quantum PCs. I code myself into a corner.