To play your downloaded games, youYuzu requires specific system files from a Nintendo Switch console to function. Step 1: Install Yuzu

Often includes the base game and sometimes older updates in a single file; feels more like a "physical" backup.

Download the latest version of the emulator from the official Yuzu website. You can choose between the Mainline build (stable) or the Early Access build (experimental features). Step 2: The "Keys" and Firmware