While technically informative for modding or emulation, the vast majority of searches for this exact phrase stem from piracy. The safest, most reliable, and legal way to enjoy Pokémon Shield with all content is to buy the game and Expansion Pass from the Nintendo eShop.
remains the gold standard for Galar content. Update 1.3.2 fully supports these massive additions: The Isle of Armor
For users managing game files, the following technical details apply: