A Really Big Secret
Some players will tackle Zelda: Breath of the Wild's dungeons one-after-another, do some shrines along the way, eventually face Calamity Ganon, see the credits start scrolling by, and turn the game off, feeling content. But Breath of the Wild's Hyrule is full to the bubbling brim with secrets, and for many other players it's seeking these out that provides the most satisfaction.
Breath players have tamed the Lord of the Mountain, communed with spirits and gods, ventured to the center of each Labyrinth in turn, stolen scales from the great dragons, excavated the ruins of Lon Lon Ranch, located 900 Korok seeds, scoured every inch of ruined Hyrule Castle, and seemingly discovered every other secret the game has to offer. What they haven't found is a deeper mystery, one that requires more to solve it than someone simply noticing it.
Video games are full of these, both real and imagined, from Super Mario Bros. 3's warp whistle to the hunt for nonexistent aliens in Grand Theft Auto V. Destiny has its Sleeper Simulant and Outbreak Prime, guns that took the community's collective time and brainpower to unearth, while Trials HD had the ultimate riddle and Spelunky had its version of Hell.
Breath of the Wild may yet hide this type of arcane, all-encompassing secret. There's one item, a "classified envelope," that players still haven't discovered a use for. But that could wind up being nothing, or simply a hook for a future expansion. If there is a bigger secret in Breath of the Wild, it might be too well hidden; and if there's not, well, that's just a little bit disappointing.