To access DLC officially, you must purchase it through the Nintendo eShop or buy the "Overcooked 2: Gourmet Edition," which bundles the base game with a selection of DLCs. Once purchased, the content is verified and unlocked on your specific console.
It is important to note that DLC is tied to the user account that purchased it and the specific console designated as "primary." If you are playing on a secondary console, you may need an active internet connection to verify ownership of the DLC.
You can also use these same NSP/Update/DLC files on PC emulators. Overcooked 2 Switch NSP UPDATE DLC
For Ryujinx (Better for Overcooked 2):
For Yuzu:
There are two types of Overcooked 2 DLC: Paid Expansions (huge level packs) and Free Seasonal Updates. To have the complete experience, you need all of the following NSP files.
The King led them to the Archive Altar. "First, the NSP. This is your kitchen foundation. It contains the original recipes: the sushi, the salads, the pasta. It is the core of your journey. But alone, it is merely a starting point." To access DLC officially, you must purchase it
Kevin looked at the file size. It was respectable, but he hungered for more.
Before diving into the ocean of DLC, let's clarify the terms. For the Switch, NSP (Nintendo Submission Package) is the digital title format. It is identical to what you download from the eShop. For Yuzu:
Why NSP over XCI? NSPs are easier to layer updates and DLC onto via title managers like Tinfoil or DBI. XCI (cartridge dumps) often require repacking to include updates, whereas NSPs allow modular installation.