Telltale Games (the studio behind The Walking Dead and The Wolf Among Us) is working on a Game of Thrones series which is expected to debut in 2014, the developer announced during the VGX 2013. As of this news article, Telltale hasn’t confirmed any platforms for the upcoming title.
The Game of Thrones game will be similar to previous Telltale adventure titles, but with large-scale battles. Also, it’s worth mentioning that while the upcoming title is based on the HBO television show, Telltale hasn’t confirmed if the game will have the series’ voice actors or their likenesses.
Telltale Games is currently working on The Walking Dead, The Wolf Among Us, Tales from Borderlands and Game of Thrones. Personally, I think this is one of the greatest lineups ever.