The Switch release is a "complete" package, meaning you do not need to purchase additional scenario packs separately. Go to product viewer dialog for this item.

If you already own the base game, the DLC is worth grabbing for the extra units and cash alone. If you’re starting fresh, the complete NSP/XCI collection is the only version you should play.

: Ensure any separate DLC or update NSP files match the region of your base game (e.g., HK region) to avoid issues where content is installed but not recognized. Additional DLC and Purchase Guide