You can find the official version on the Cardfight!! Vanguard Dear Days Steam page.

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.

It is also available digitally via the Nintendo eShop .

If you are looking to play the game, it is officially available on the following platforms:

Buying the official version ensures you have access to , which is a core part of the Vanguard experience, and receives the latest card updates and bug fixes.

The phrase you're looking for refers to a of the game Cardfight!! Vanguard Dear Days .