Information/resources on this type of architectural perspective

A screenshot from a game called ChefRPG

Hello there, I am currently learning architecture and am working on a personal project which requires me to sketch a town from this type of perspective. In game development, this type of perspective is called "top-down", which is quite popular in games like Pokémon NDS.

As I am trying to make the sketch adhere to the best practices of architecture, I could not find resources/tutorials on sketching this perspective.

Does anyone know the keyword to search for those resources/tutorials, or what the perspective is called?

Thank you in advance!