Telltales: Game of Thrones - Episode 1 8.5/10
If you like the series, you'll like this game and I LOVE the series. It was cool, the game is actually canon and works well with the events that happen in the books and TV series. IT references characters in the show (and in many cases actively involves them) without causing inconsistencies between the two media, which I thought was very impressive. In terms of gameplay it's like every other telltale game since The Walking Dead, basically an interactive movie, but fun none-the-less. The game really captures the game of thrones settings, even with the surprising moments that you didn't consider, which I won't go into as that'd be spoiling it. Regardless, the first episode was a good one and I'll be eagerly awaiting the second episode.
OH, one last thing, to avoid spoilers you'd want to play this game AFTER watching the series, (at the very least, you should watch the entirety of season 3 before playing) as spoilery events in the series play a major role in the story of the game.