The same production company responsible for titles like 'The Elder Scrolls V: Skyrim' and 'Fallout 4', can take advantage of the popularity of "Game of Thrones". The production company we are talking about is Bethesda.
A NeoGAF user discovered a temporary webpage on the website of the retailer Target with a project called "Bethesda: Game of Thrones". Todd Howard, responsible for the Bethesda studio, had commented on the existence of five projects, and this game based on the work of George RR Martin could be one of these projects being developed by the company.
The pages on the Target website are famous for leaks and this is not the first time we have information about Bethesda being the developer of a game based on one of the best franchises in television history, Game of Thrones.