An old street alleyway consists of several types of buildings and several building components

Some buildings can be stacked and combined

Important/Additional Notes:

In this project, some static mesh bodies use NANITE technology

The following is an introduction to the NANITE documentation for Unreal Engine

We used a scene exposure curve in 'post-processing volume'

35 blueprints are only used for the splicing of one set of item components and do not have any special functions

1 blueprint uses an extended spline blueprint

Documentation Link: Nanite

Video