The sixth season of the fantasy drama television series Game of Thrones premiered on HBO on April 24, 2016, and concluded on June 26, 2016. It consists of ten episodes, each of approximately 50–60 minutes, largely of original content not found in George R. R. Martin's A Song of Ice and Fire series. Some material is adapted from the upcoming sixth novel The Winds of Winter and the fourth and fifth novels, A Feast for Crows and A Dance with Dragons. The series was adapted for television by David Benioff and D. B. Weiss. HBO ordered the season on April 8, 2014, together with the fifth season, which began filming in July 2015 primarily in Northern Ireland, Spain, Croatia, Iceland and Canada. Each episode cost over $10 million.