Emiya Shirou died saving the world. The last thing he expected was to wake up in a reality where his father was alive and he was not supposed to know about magic. But darkness still encroaches upon Fuyuki and his family. Armed only with his prior knowledge and a power that may kill him, Shirou must master his own magecraft and save those he loves before they are lost forever.

The Grail is broken. The failure of the Einzberns in the Third Holy Grail War has created a shift, and Avenger is ready to cause chaos. As Fuyuki prepares for its Fourth Holy Grail War, a second, alternate one is set to begin: battle comes for Winterbaum, and this time, the prize is different. The First Moon Cell War dawns. For some, it spells hope. But, maybe for all, it is doom.

Retelling of the three routes (anime) because that's "easy". This time with different servants. I trust I won't need to tell you everything.

Roman ‘Todeswandler' Gunlock has no idea where he is. why is there a guy in skintight suit trying to kill a kid with almost the same hair colour as him? why is Aurther —IT'S ARTHUR DAMNIT!– telling him that he feels Avalon nearby? and why the hell is he not dead because he's pretty damn sure he saw Odin rip his heart out and eat it. (One shot) (crack)

Counter Guardian Emiya is a man of many regrets. Among them, the fact that he wasn't able to save his Saber when he was a boy continues to haunt him to the end of days. Now, however, a chance has mysteriously appeared to change that result. And being the practical man he is, he will not hesitate to seize it. But still... why in Alaya's name is Artoria his new Master in this world?

La vida de dos hermanos es interrumpida cuando algo les ocurre a sus juegos del Grand Order. Zelretch se presenta ante ellos con una oportunidad única en la vida: Volverse masters de Chaldea. Ahora deberán recorrer las singularidades para rescatar a los servants que han sido corrompidos por una extraña razón y seguir la historia ¿podrán hacerlo?

it is said that only for a small action it can cause more gigantic percusions in the future, this phenomenon is called the butterfly effect, and this is what is happening has fuyuki being trapped inside the grall all the evils of the world Angra Mainyu by chance managed to access a specific grail function by unleashing a fourth war of the holy grail more destruct than it was meant

The Roman empire was suffering a great invasion of the Germanic tribes, and Britain had broken free from its rule. Yet, when a nameless soul grasps the Sun in his hands, Rome shall be rekindled once more. (400AC, Altera's invasion, Pendragon's Rebellion)

For Cirawynn, life just turned upside down. One moment she was set to go to college, the next she is caught in a world she's only heard in whispers. Humanity's destiny is in her hands, and she's going to need a lot of help to pull this all off. Luckily, she has help. Fate/Grand Order from my eyes and character, there will be deviations from the original script in some places.

It's been two years since the fifth Fuyuki Holy Grail War. After studying in the Clock Tower, Rin Tohsaka found herself among the Master candidates for Chaldea's Grand Order, and one of its few survivors. Now she must traverse the Seven Singularities to restore the foundation of humanity. Will she and her friends succeed or is mankind doomed to be incinerated?

Another time, in another place, a Holy Grail War is waged between seven masters. Louise Saint-Hermine, fated to be one of these masters, will quickly learn what one must sacrifice in order to win such a harsh contest. But the truth of the Grail War may be even more grim than she could ever imagine. An AU story where all of the Servants are drawn from the stories of Alexandre Dumas.

The Valkyries were machines with one purpose, seek heroes. What happens when they are summoned by Shirou Emiya, a human living like a machine and trying to be a hero? AU. Story collection. Shirou x Valkyries.

[AU] Accompany our hero on the path to protect humanity in the Camelot singularity (Ptds.- I apologize I confused the documents with the Spanish one, this is the English language version)

Twelve years after the fifth Holy Grail War, a new one begins. However, the rules aren't quite the same. Twenty-one Servants. Twenty-one Masters. Three Factions striving to gather the Grail Shards scattered around the world: the Masters of Red from the Mage's Association; the Master of Black from New Edge; the mysterious Masters of White.

This is a world where Kiritsugu failed to find his salvation in Shirou. A world where Shirou became the Black Mud. A world where Shirou met the sisters of Sky Blue. (Adopted Shirou Aozaki, Demi-Angra Mainyu Shirou, Dark Kiritsugu with Avalon)

As the threat of the King of Mages looms over them, the masters of Chaldea struggle to keep their team of heroes together for the fight to save humanity. Their hope comes from Chaldea's resident Lancer, who offers them a unique solution... To seek out his mentor. (Rated for language and violence, subject to change)

Who even was Shirou Emiya before the Fuyuki Fire had claimed? Waking into a strange dream and removing a certain scabbard within his soul it all comes back to him. The revelation of who and what Shirou is pulled to the front and center. The after effects of it will change Fate for him and those around him. Only one question remains. Can a monster who feeds on blood be a hero?

un chico con el sueño de ser un héroe que salve a todos se encontraría en un evento que lo llevaría mas cerca de lograr su sueño de ser un héroe la quinta guerra del santo grial. shirou x harem(con personajes de fate grand orden y fate apocrypha)

[AU] Accompany our hero on the path to protect humanity in the Camelot singularity

There are many various gods, to worship or defy. And there's Gilgamesh... Heroic Spirits are supposed to aid and inspire mortals. But of what help a Servant could really be to a man, with whom all the legends of humanity had begun? No matter the reason behind the summoning, one thing is certain - even the King of Heroes should not play with magic he does not fully understand.

Blood debt, paid in blades. Sins of murder, paid in blood. Impulsive abandonment breaks everyone. For her father who has forsaken her, for her mother who has cursed her into doom, when her own destiny fated her to fail... who will grant her redemption? Surely, not herself?

a boy named Shirou however a mysterious awakening of his "true self happens and now it's up to him to deal and transition in to the change UBW canon is the followed canon btw"

Desperate to share a table in the Servant Summer Festival convention hall, Meltryllis agrees to write a guest story for Princess Princess's latest release. The Alter Ego recruits the help of an unlikely critic to assist. Neither one of them is prepared for the secrets they'll stumble across as they race towards the deadline together. A tale of metafiction, waking dreams and ghosts.

OC/Cú Chulainn. A sixth Grail War unfolds in America. A magus aims to defy her legacy and aunt and become an apprentice at the Clock Tower. The condition to enter: win a Grail War. Naomi dives headfirst into the brutal magi world with an Irish Servant in a fate riddled story that once tried to erase her existence. This world will soon meet its end. (Also on AO3 under Shadowolf27).

Many Heroic Spirits have had great legends to give direction to their lives after death, but Artoria Lancer Alter was not one of them. All that seems to give direction to her life now is the battlefield. Though in the time after her summoning, she has found purpose in fighting for her master's cause... including love.