Fate/Stay Night

Fate/Stay Night (stylized as Fate/stay night) is a Japanese visual novel game developed by Type-Moon. It was initially released on January 30, 2004, for WindowsPCs as an adult game, with Type-Moon later releasing versions of Fate/Stay Night without the erotic content. The story takes place through three distinct routes: Fate, Unlimited Blade Works, and Heaven's Feel. It focuses on a teenager named Shirou Emiya, who joins the Holy Grail War; a battle between mages called "Masters" and their "Servants". In each route, Shirou bonds with a heroine and confronts different adversaries participating in the war. An enhanced version, Fate/Stay Night Réalta Nua, was released in April 2007 for the PlayStation 2. Realta Nua was later ported to Windows in 2011, PlayStation Vita in 2012, and Android and iOS in 2015. A remastered version of Réalta Nua was released for Nintendo Switch and PC, through digital video game distribution service Steam in August 2024, marking the game's first release outside Japan.

Fate/Stay Night was a critical and commercial success and is considered a defining work in the visual novel genre. The game was regarded as the highest-selling visual novel in Japan at the time of its release. Type-Moon later went on to produce an adult spin-off called Fate/Hollow Ataraxia in October 2005, which expanded on the events of Fate/Stay Night eight months later. Fate/Stay Night has received several anime and manga adaptations, beginning with a 24-episode anime series by Studio Deen, based on the Fate route. It aired in Japan between January and June 2006. A film adaptation, Fate/Stay Night: Unlimited Blade Works, also by Studio Deen, was released in January 2010. A second anime television series, Fate/Stay Night: Unlimited Blade Works, was produced by Ufotable and aired between October 2014 and June 2015. A film trilogy by Ufotable adapted the Heaven's Feel route, consisting of three films: presage flower (2017), lost butterfly (2019), and spring song (2020).

There have been multiple manga adaptations based on Fate/Stay Night published by ASCII Media Works, Kadokawa Shoten and Ichijinsha. The first manga series adaptation by Datto Nishiwaki began serialization in the Shōnen Ace magazine between February 2006 and December 2012. A second manga adaptation, based on the Heaven's Feel route, was illustrated by Taskohna, and began serialization in 2015 in Kadokawa Shoten's Young Ace. A third manga adaptation, based on Unlimited Blade Works and illustrated by Daisuke Moriyama, began in 2021 in ASCII Media Works' Dengeki Daioh.