Vampyr Switch Nsp [update] -

: Ensure you have your Nintendo production keys in the tool's bin folder.

If you are looking to combine the base game and the update into a single file for easier installation, you can use tools like (Switch Army Knife). Vampyr Switch NSP [Update]

Are you trying to specific gameplay features within the update, or just looking for the best tool to install it? Nintendo Switch NSP Combination Install Tutorial : Ensure you have your Nintendo production keys