There's a Shogun 2: Rise of the Samurai Preview on Rock, Paper, Shotgun with a look at an upcoming samurai-themed prequel campaign for Shogun 2: Total War. This alerted us to the announcement of this campaign from a few weeks ago that we overlooked at the time, much to our embarrassment. There are details on the Rise of the Samurai, which is due in September for $9.99 USD, on the Total War Website along with a bunch of screenshots. With all due apologies for the oversight, here's word on what to expect:

The Rise of the Samurai adds a brand new playable campaign to Total War: Shogun 2. The campaign can be played in both single and multiplayer modes. Six new playable clans, each with unique traits are also added for a brand new campaign experience. These clans come with sixteen new land units and ten new naval units between them offering a very different set of strategies to the would-be general. There are also four new hero units including the Tetsubo Warrior Monk Hero and the deadly female Onna Bushi Heroine. As well as all these additions the Rise of the Samurai expansion adds four new agent types, each with their own skill trees. From the seductress Shirabyoshi to the shrewd and zealous Junsatsushi Inspectors, each of these offers a brand new campaign experience. With all these clans, heroes, agents and units at your command you must ride with the first of the Samurai and decide the fate of the first ever Shogun of Japan.