Approximately 13.8 GB if installing both versions.
A "Day 1" update (Ver. 1.1.0) required about 3 GB of additional free space to enable features like the Grand Underground, Super Contest Shows, and Mystery Gifts. DOWNLOAD FILE – Pokémon Brilliant Diamond & Shi...
Buy the game directly from the Nintendo eShop or via retail digital codes. Approximately 13
Ensure you have enough space on your system memory or a microSD card before starting the download. Super Contest Shows
If your console is connected to the internet, launch the game from the HOME Menu to automatically trigger any necessary update downloads.