is the tv series based on any novel?
Yes, it is an adaptation of "A Song of Ice and Fire" fantasy novel
Game of Thrones
 It is an adaptation of "A Song of Ice and Fire", George R. R. Martin's series of fantasy novels, 
game of thrones episode 2 season 1 summary Eddard Stark and his daughters accompany the king's entourage to King's Landing to occupy the post of Hand of the King, Tyrion Lannister joins Jon in his travel to the Wall, and the newly wed Daenerys goes with her husband's "khalasar" to the city of Vaes Dothrak. Meanwhile, in Winterfell a grieving Catelyn Stark watches over her unconscious son Bran what does this kingsroad refers to? The Kingsroad" is the second episode of the first season of the HBO medieval fantasy television series "Game of Thrones" where is it filmed? The Paint Hall studio and Redhall Estate, in Ballycarry can you name some of the characters of the tv series you mentioned? Lord Eddard "Ned" Stark,  Catelyn,  Robb ,Sansa , Arya, Bran, Rickon, Jon Snow, and many more who is its creator? David Benioff and D. B. Weiss which actor plays the above mentioned last character? Kit Harington has this actor worked in theatres? Yes, in the National Theatre's adaptation of "War Horse" what other movies have he done? "Pompeii",  "Testament of Youth" , etc can you mention some other actors who were casted for the above tv series? Sean Bean, Michelle Fairley, Richard Madden, Sophie Turner, Art Parkinson, Hannah Murray, etc. what kind of visual effects were used in it? British-based BlueBolt and Irish-based Screen Scene,  British-based Peanut FX, Canadian-based Spin VFX, and US-based Gradient Effects, German-based Mackevision, etc. is it adapted to any video game? Yes, one of them is "Game of Thrones Ascent", and mobile game includes  "Game of Thrones Beyond the Wall"
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Game of Thrones [SEP] Introduction
Game of Thrones is an American fantasy drama television series created by David Benioff and D. B. Weiss for HBO. It is an adaptation of "A Song of Ice and Fire", George R. R. Martin's series of fantasy novels, the first of which is "A Game of Thrones" (1996). The show was both produced and filmed in Belfast and elsewhere in the United Kingdom. Filming locations also included Canada, Croatia, Iceland, Malta, Morocco, and Spain. The series premiered on HBO in the United States on April 17, 2011, and concluded on May 19, 2019, with 73 episodes broadcast over eight seasons.