Fall of the Samurai is standalone expansion. Many new troops, technologies, you will enjoy lot of new strategic options in both singleplayer and multiplayer. The Metascore is 87/100. This game is a “must have” for RTS lovers.
DOES NOT require the base game Total War: SHOGUN 2 in order to play.
You could already buy the game and get your steam key.
The Steam key will be active the 23 march 2012.
Enough to keep you busy for many hours 😉