Best way to approach a multi-layered isometric game in Godot 3.1?

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:bust_in_silhouette: Asked By Perasha

Basically, I’d like to make something like this:

How can I do that in Godot? I’m thinking Tilemaps could be used here, but what about the fancy lighting tricks and “z-axis” as seen above?

I’ve been practicing with Godot for a bit now, and I’d consider myself an intermediate programmer. I know Unity has some new shiny tools for isometric stuff, but there’s a few reasons why I’d like to try and stick with Godot on this one.