Game of Thrones Winter is Coming is a PC strategy game based on the HBO drama television series, officially licensed by Warner Bros. Interactive Entertainment under HBO, and developed and published by YOOZOO Games. Interactive Entertainment and HBO. Play the role of an ambitious Westeros lord, determined to save a people plagued by war and put a stop to the endless disputes between the Seven Kingdoms. This new strategy game has been built using the Unity engine and has beautifully rendered characters and scenery designed by renowned artists.