Here is one of my personal project.
A 3D warehouse generator made with ThreeJs, it is entirely generated from a 2D map, just a txt file with some shelves position, you can test it here
The shelves are created in ThreeJs and placed on the scene according to the map, and objects are placed randomly to create an ambiance.
The main purpose is to locate easily the position of a given article in the warehouse, with the green arrow and the jumping shelf.
I added a drivable forklift, because why not You can custom his color, and use it to grab some pallets and try to put them on a shelf.
And the project has a pretty fun dark mode.
Here are some pictures.