It is also available digitally via the Nintendo eShop .
Specifically, "Goldberg" refers to a well-known Steam emulator used by "scene" groups to bypass Digital Rights Management (DRM) on PC games. The term "piece" is likely a fragment of a file name or a specific release tag from a pirate site. download-cardfight-vanguard-dear-days-goldberg
If you are looking to play the game, it is officially available on the following platforms: It is also available digitally via the Nintendo eShop
You can find the official version on the Cardfight!! Vanguard Dear Days Steam page. download-cardfight-vanguard-dear-days-goldberg