It's a "deep character driven strategy" title based in Japan, and we play the head of an "illustrious" family of Samurai. This is internally developed by Paradox.
"The game is created by the Paradox Interactive internal development team that has previously created Hearts of Iron series, the Europa Universalis series and the grand strategy game Victoria II," said Paradox in the press release.
"In this deep character driven strategy game, you play as the head of an illustrious Samurai family. Civil war has broken out and it is every man for himself in the provinces." Sengoku releases on PC September 13th. See the teaser trailer and dev diary below.
Closed beta signupson the Paradox Interactive website.