If you plan to play the Special Episode DLC, you must own the European version of the base game for compatibility. Captain Toad™: Treasure Tracker for Nintendo Switch
Select the game from the results. You can also try a before buying. Download Captain Toad: Treasure Tracker (EU) | ...
Ensure your console is connected to the internet. If you plan to play the Special Episode
Select the profile linked to your European Nintendo Account. Search for . Download Captain Toad: Treasure Tracker (EU) | ...