'Game of Thrones' <br />Prequel to Launch in 2022 HBO President of Programming <br />Casey Bloys confirmed that <br />'House of the Dragon' will likely <br />debut "sometime in 2022." The series is based on <br />'Game of Thrones' creator <br />George R.R. Martin's book, 'Fire & Blood.' The story is set <br />300 years before <br />'Games of Thrones.' Ryan Condal has been <br />tapped to write the series. <br />No casting has yet been announced. Casey Bloys, HBO, <br />via Deadline 'House of the Dragon' is the <br />second 'GOT' spin-off to have been <br />green-lit by HBO. Bloys says the <br />series has the focus of the network. Casey Bloys, HBO, <br />via Deadline
