The first spin-off from Game Of Thrones is set to premiere on August 21: House Of The Dragon, which is based on George R.

However, House Of The Dragon, however, was one of many concepts considered for a spin-off series. According to The Hollywood Reporter, HBO compiled 15 possible prequel concepts based on Martin’s collective works.

Speaking to the publication, HBO chief content officer, Casey Bloys, said: “We tried everything. There were no ideas too weird. "

Game Of Thrones

Nikolaj Coster-Waldau stars as Jaime Lannister in "Game of Thrones". CREDIT: AA Film Archive/Alamy Stock Photo

One concept which “didn’t get very far” is described as a “superhero team-up” series around the fabled Seven Gods of Westeros, which followed the adventures of a Father, Smith, Warrior etc before they were worshipped as gods.

From these concepts, five prequel ideas were put into development. Alongside House Of The Dragon and Bloodmoon, a spin-off set in the Age of Heroes which was cancelled in 2019 following a pilot, one script was considered about the destruction of the ancient Targaryen empire of Valyria by Max Borenstein (Kong: Skull Island).