Information/resources on this type of architectural perspective

A screenshot from a recreation known as ChefRPG

Good day there, I’m at the moment studying structure and am engaged on a private undertaking which requires me to sketch a city from this kind of perspective. In recreation improvement, this kind of perspective is named "top-down", which is kind of in style in video games like Pokémon NDS.

As I’m attempting to make the sketch adhere to the most effective practices of structure, I couldn’t discover sources/tutorials on sketching this attitude.

Does anybody know the key phrase to seek for these sources/tutorials, or what the angle is named?

Thanks upfront!