Whisky Game Of Thrones Singleton of Glendullan Select. Game of Thrones. Scotch whisky. Brought together by Diageo and HBO. These limited-edition bottlings should prove very popular indeed. The Singleton Glendullan Reserve was crafted in Speyside's legendary Dufftown, which produces more malt whisky than any other town in Scotland. Glendullan is located on the banks of the River Fiddich, so its fitting that it was paired with House Tully at Riverrun, which is in the region known as The Riverlands. This single malt Scotch whisky is decorated with a jumping trout, the sigil of House Tully.