The much anticipated expansion pack for Total War: Shogun 2 is finally out! Rise of the Samurai.
You have probably heard lots about it, but you can find more info on the News found below, and our Forums!
It can be purchased through Steam. Even for those who don't buy the DLC, there is a huge patch to get your internet connection worked up, which is around the 1800 MB mark. The patch will update the game automatically in Online Mode and fixes various bugs and other problems, the full changes can be read Here.