"CDecrypt 2.0" (or version 2.0b) is a widely used open-source utility for decrypting Wii U game files (specifically files) into a format compatible with the Cemu emulator

While the tool is not new, it remains a foundational piece of software for anyone looking to manipulate Wii U game data outside of the official hardware ecosystem.

It is easy to confuse CDecrypt 2.0 with other tools. Here is a quick comparison:

3. NUS Content Support

The tool is specifically built to handle content downloaded directly from Nintendo’s servers (NUS format). It takes the raw .app files and decrypts them into the readable .rpx (executable) and content files (assets, textures, audio).

Right-Click

Hold Shift and on an empty space inside the folder.