Nintendo has released a 3 part series on their Youtube page detailing how they made Breath of the Wild.
The first video addresses the story and characters. The creators discuss crafting together new designs and features of the main characters, as well as how it fits into the overall story.
The second video talks about the beginning, where director Hidemaro Fujibayshi discusses the process and journey of creating the game.
The third video looks into the open-air concept. Producer Eiji Aonuma goes into detail about the importance of creating a game where players can be free to explore.
You can check out the 3 part series below or click here to view it on their Youtube page.