Total War: Shogun 2: Fall of the Samurai, the standalone expansion to Total War: Shogun 2, will be released worldwide on March 23, 2012.

Fall of the Samurai is the fastest pre-ordered Total War title to date with thousands of copies already purchased, says SEGA.

Set in 1863 the action plays out across an expanded and improved campaign map, covering new island provinces in the far north and featuring all-new building and technology trees as well as brand new features such as railways and naval bombardments.

"We're delighted that the fans have resonated so positively and quickly towards the latest excellent instalment from Creative Assembly. Shogun 2 has built an incredible audience over the last 12 months and now Fall of the Samurai will continue to build the enjoyment", said John Clark, director of Digital Distribution.

Exclusive pre-order packs are available at selected retailers.