If you already have your Wii U set up for homebrew (via the Homebrew Channel or Mocha CFW), here is the basic process for the USA version:
Expected behavior:
Because the Wii U is obsolete hardware, most modern players experience Super Mario 3D World on PC using the CEMU emulator. For CEMU, you need a proper disc dump (ISO or WUX) – not a Loadiine folder. However, CEMU can also read decrypted Loadiine files directly (by pointing CEMU to the code folder). The advantage of CEMU: Super Mario 3D World WII U ISO -Loadiine- -USA ...
The USA version is again the standard for CEMU compatibility guides.
As of 2025, Nintendo continues to aggressively protect its IP. Super Mario 3D World is commercially available on the Nintendo Switch, meaning downloading the Wii U version for free is still clear copyright infringement. That said, the conversation around game preservation remains relevant: If you already have your Wii U set
This article does not provide or link to any copyrighted game files.
Before diving into file formats, it is worth remembering why this game is so highly sought after. Unlike Super Mario Odyssey on Switch, 3D World focused on: Launch: Open the Homebrew Launcher, select Loadiine GX2,
Because the Wii U sold poorly, many gamers missed this title when it first launched. (A port later arrived on the Nintendo Switch as Super Mario 3D World + Bowser’s Fury, but the original Wii U version maintains a dedicated fanbase for modding and speedrunning.)