The backlash comes after many were upset at the path taken by one of their favourite characters, Daenerys Targaryen.
Instead of acknowledging the surrender of King’s Landing, she and her dragon burned the city to the ground in a rage-filled rampage.
The massacre of innocent people in the penultimate episode was in sharp contrast to the level-headed and compassionate character developed over the eight series.
The petition hits out at the show’s co-creators and writers, David Benioff and DB Weiss.
It states that they have “proven themselves to be woefully incompetent writers when they have no source material (i.e. the books) to fall back on”.
“This series deserves a final season that makes sense. Subvert my expectations and make it happen, HBO!” says the petition’s creator, Dylan D.
More than 570,000 had signed up to the change.org page by Thursday evening.
Comments on the petition include this from Shakyra Young: “I understand it’s GOT but don’t trash 8 yrs of character building for what they think will shock and awe us. It sucks.”
“I don’t want these two anywhere near Star Wars, either. This was abysmal,” posted Dugan Corsolini.
— Sky Atlantic (@skyatlantic) May 13, 2019
Anthony Lauro wrote: “I’m signing because season 7 and 8 have been rushed and awkward.
“It’s clear that Benioff and Weiss have been focused on moving on rather than finishing one of the best shows ever with the appropriate care and detail that was spent on the first 6 seasons.”
Sky News has approached the show’s creators for comment.
Despite the anger of some fans, the show has pulled in record ratings.
The most recent episode, entitled The Bells, set a new high of 18.4 million in the US.
HBO says season eight is averaging 43 million per episode when recordings, streaming and repeats are included.