The first episode of Telltale's Game of Thrones series will be available for download next week. Iron From Ice will be available for OS X on Tuesday, December 2. The iOS release follows on December 4.
Iron From Ice is the beginning of the tale of House Forrester. The six-episode series of games will take place in the continuity of the Game of Thrones television series on HBO, sitting between the third and upcoming fifth seasons of the show. It features a number of actors from the TV series in the game, including Peter Dinklage, Lena Heady, and Natalie Dormer.
Source: Telltalge Games on Twitter