If you want to play Super Mario 3D World + Bowser’s Fury, here are legal options:
If you are determined to emulate for free, consider the original Wii U version of Super Mario 3D World (without Bowser’s Fury). Super Mario 3d World Rom Nintendo Switch Download
Even if you ignore the legal risks, downloading a “Super Mario 3D World Switch ROM” from a random site comes with real dangers: If you want to play Super Mario 3D
By contrast, the authentic Switch version runs buttery smooth at 60 FPS, supports local and online co-op, and just works. By contrast, the authentic Switch version runs buttery
Nintendo is infamous for its aggressive legal team. While they rarely sue individual downloaders (they target website hosts), your ISP (Internet Service Provider) can see you torrenting copyrighted material. You may receive DMCA warnings, throttled speeds, or, in extreme cases, termination of your internet service.
The official and recommended way to play Super Mario 3D World on the Nintendo Switch is by purchasing Super Mario 3D World + Bowser's Fury, which is an enhanced version of the game. This version was released on February 12, 2021, and includes the original game plus new content, Bowser's Fury.