An Introduction to “Game-Key Cards” Recently, Nintendo has stirred up some controversy amongst their fan base by introducing game-key cards for the Switch 2. What are game-key cards? In short, they are physical game cartridges that can be inserted into the Nintendo Switch 2 which don’t contain any game data. Rather, they simply contain a license key for the game, which is then downloaded from Nintendo’s eShop servers. Even after being downloaded, the cartridge with the license key mus...| Gunther's Guides & More