Based on George R.R. Martin's "A Song of Ice and Fire" novels, Game of Thrones became HBO's most successful series. The show featured complex political intrigue, shocking plot twists, and epic battles in the fictional continents of Westeros and Essos. Its massive production scale, featuring filming across multiple countries, set new standards for television. The series won 59 Emmy Awards and became a cultural phenomenon, though its final season received mixed reviews. It spawned the prequel series House of the Dragon and influenced the entire fantasy genre.