The prequel, which shot a pilot over the summer starring Naomi Watts and written by showrunner Jane Goldman, was set “thousands of years before the events of Game of Thrones” and would have portrayed “the world’s descent from the golden Age of Heroes into its darkest hour.”
The cancelled series which at one point had the working title The Long Night is not the only Game of Thrones spinoff in the works. HBO originally commissioned five prequel and spinoff ideas before the original show even ended. Back in May 2019, A Song of Ice and Fire creator George R.R. Martin said three of those ideas were “edging closer” to reality.