Namely George R. R. Martin’s A Song of Ice and Fire and Brandon Sanderson’s Mistborn.
Ubisoft has a PC game scheduled for release in September called A Game of Thrones: Genesis. It’s a RTS starting approximately 700 years before the beginning of the book A Game of Thrones and leading up to that point. For more information, read this article or visit the official site.
Progress has also been made on the Mistborn pen and paper RPG and there should be some updates soon. In the meantime, they are looking for researchers to help them with the details of developing the game. For more information on the game and how to become involved, visit this site.