These are games that put you in contact with a real, human, dealer, who’s doing their job in a fully-kitted out authentic casino somewhere around the world. They are being beamed to you via HD live link.
It feels like you’re playing at a real land-based casino, just from your device, and likely in your own home. It makes for a more sociable and interactive version of traditional table games, and it’s a really interesting player experience to have.