HBO's hit show and pop culture phenomenon Game of Thrones is officially a franchise. The first in-universe spinoff, House of the Dragon brought back the world of Westeros with a prequel story filled with royal intrigue and stunning dragons, led by a stacked cast of warring Targaryens.
Though some fans were skeptical of the show's chances after Thrones' divisive finale, House of the Dragon's renewal chances skyrocketed when its premiere episode brought in nearly 10 million viewers, the highest ratings for an HBO premiere ever. In response, the network decided to go all in on the Game of Thrones spinoff.
