Short answers, pulled from the story.
Sekiro: Shadows Die Twice is a 2019 action-adventure game developed by FromSoftware. Players control Wolf, a shinobi tasked with rescuing his lord Kuro during the late Sengoku period of a fictionalized Japan. The story centers on immortality, sacrifice, and rival factions fighting over a bloodline that can grant eternal life.
Sekiro was directed by Hidetaka Miyazaki, who had previously directed the Dark Souls series and Bloodborne. He wanted to create a new intellectual property distinct from Dark Souls, centered on shinobi and Japanese history.
Sekiro: Shadows Die Twice was released on the 22nd of March 2019 for PlayStation 4, Windows, and Xbox One. A port for Stadia followed in October 2020, and a free content update was released on the 31st of October 2020.
As of September 2023, Sekiro has sold over ten million units. Within ten days of release more than two million units were sold, and the total passed five million by July 2020.
Yes. Sekiro won Game of the Year at the Game Awards 2019, at GameSpot's year-end awards, and in the 2019 Steam Awards. It also won Game of the Year at the 20th Game Developers Choice Awards.
Sekiro replaces the health-point attrition of Dark Souls with a posture system. Players use a katana to break an enemy's balance through attacks and deflections until an opening appears for a single killing blow. The game also removes character creation, stat distribution, and multiplayer.