Could it be anything else?
Nintendo have created a timeless work of pure interactive design. There are no ancillary loot grinds, microtransactions, cumbersome menus to navigate or tutorial-pops robbing you of discovery.
Instead, there is nothing less than the most inviting and feature-complete open world you've ever seen.
Want to cross a ravine? Chop down a tree and make a bridge. Fancy journeying across a body of water? Grab a Korok leaf and literally any buoyant object, then waft yourself along. Roll boulders into enemies, climb the highest mountain, use magnetic powers to fling metal objects at enemies - BotW is playful and inviting in a way that many modern video games have forgotten.
It works as a release today, but also as a pleasant, heartwarming reminder of why we love video games so much in the first place. Games weren't "better when you were younger", it's more that hardly anyone can create something as magical as this.
Immersive, loveable and oh-so pretty (just watch the sun rise and tell me the Switch can't take your breath away), The Legend of Zelda: Breath of the Wild is Nintendo's most ambitious and entertaining product yet, easily claiming 2017's best game.