The Nintendo Expansion Pack is an add-on to the Nintendo Switch Online subscription service that was released on October 25, 2021. It includes access to Nintendo 64, Sega Genesis, and Game Boy Advance games, as well as paid DLC for Animal Crossing: New Horizons, Mario Kart 8 Deluxe, and Splatoon 2. The Expansion Pack also allows subscribers to access select downloadable content for retail games at no additional charge. The price of the Expansion Pack has drawn criticism, with some users feeling that it is not worth the cost. However, others believe that the Expansion Pack will become more valuable as more content is added to it. The Expansion Pack is available as a 12-month membership for $49.99 US.