Post UBW!Good: Mistakes were made and Tohsaka Rin has to remedy in ways she never thought she would. NTR, Cheating. Explicit Smut

After Kiritsugu's death, the Mystic Eyes of Game Perception awoke within Shirou. With it he'll take the world, and several older ladies, by storm

She held a golden cup in her hand, filled with abominable things and the filth of her adulteries.  The name written on her forehead was a mystery: Babylon the great The mother of prostitutes and of the abominations of the earth.

Wanting to escape his family's efforts to restore the Makiris in power, Shinji Fujimaru ran away from the Matou household. Taking on a false name, he has been wandering Asia till he no longer feels safe. He now finds himself heading to Trifas.

This is an Isekai story into the Nasuverse as an Elemental rising to be the Apex entity of Earth. the chapters are short, but the updates are frequent and there are long chapters. Please give it a try.

Love and hate. Two emotions that are so different, yet there is a thin line between them. Mordred's hate had driven her to slay the king the had loved after a fatal miscommunication. But what if the love Mordred held for her sire had been stronger than her hate? See how the Knight of Treachery, despite the misfortune of her birth, moved past her hate to change the destined clash.

What would you do If you were suddenly transported to the Nasuverse just before the Fourth Holy Grail War as a young Shirou with no access to a Magic Crest, Magecraft, or OP Servant? [Self-Insert Shirou]

In the year 2025 Chaldea Security Organization has completed the Second Grand Order postponing Humanities destruction yet again. With the second singularity completed, they still have more questions than answers. While new faces join Chaldea to bolster their cause, there are those among the organization who are plotting its downfall. Will the group uncover who is behind everything?

In December 1999, a war is about to begin. Not a normal war, but a war between masters and servants. Saber. Archer. Lancer. Berserker. Rider. Caster. Assassin. This is the second Tokyo Holy Grail War. The main character is Ayaka Sajyou, a young magus fighting her way through the grail war with her servant, Saber. This is going to be based off of the Fate/Prototype short.

A tale of three young teens and the perilous journeys they will face. From dragons, to gods, to demons, three young teens will face stand against the odds. And how their lives will be changed forever. This is a story made by both Owenchaser and CosmicVlad.

It truly has been an eternity for these two. A trial for a lone Scabbard searching for his Saber. In the end their dream will end. So what's wrong about giving these love sick children a reward? This is a new life to spend together before returning to the fields of Avalon, they'll make the most of it.

Come One, Come All! Come see Fate Inspired Servants from characters from all across Time and Space! All not constrained by the premise of Earth! Heroes and Villains all across the stretches of time, now all is seen etched on the throne of heroes. Can you find a servant you most desire?

Héroes de cualquier tiempo y lugar, todos reunidos en un solo lugar ... El Trono de los Héroes!

A crossover between lord of mysteries and fate with Shinji matou as the MC

If Emiya summoned as a Berserker in the Fourth Holy Grail War by Kariya. Thing goes out of control pretty fast, well, not like he cared anyway.

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?

Seven mages wish for a servant upon a corrupted grail, tainted by all the evils of the world. The seven servants that would tear down the order of humanity arise in answer.

Ritsuka Fujimaru was just a normal person some months ago and now he's fighting to save humanity by traveling through history. Not only that but he also encounters two kids who forgot about their origins, homeland, family and wish to get those memories back while also helping Chaldea in saving humanity. An alternative version of FGO Observer on Timeless Temple.

Shirou Emiya, born to a Clan following the name they had not officially been called in centuries, chasing after a dream created by their ancestor as relentlessly as any other Magi family reaches for the Root. This is the boy that Kiritsugu Emiya and Irisviel von Einzbern find in the rubble and mud of the Fuyuki Fire, and this is the boy that they adopted.

What happens when two Elder God entities get two famous wizards to help with train Shirou Eniya how to use their powers? Chaos in the most humorous way. Watch as Shirou Eniya trains to wield [The Gamer] and become the God of Cooking of the Fate/Nasuverse. What kind of madness has Shirou sighed up for? ShirouXHarem

A childish wish to be a hero held on into adulthood pulls forth a kindred spirit bound in kind. But neither of them is truly ready for the war ahead.

With the arrival of servants to Chaldea, the mission to fix the singularities could finally start, but the situation is more complicated than they imagined.

Simple actions and choices from the past have the power to alter the future drastically. Shirou found himself discovering a small trinket of no value to many. But to his ignorance, this item changed the course of his fate beyond anything he thought possible. A twisted fate which coiled itself into another reality, one where Shirou would embark to find his answer.

The future of humanity is cut short, in response, the Chaldea Security Organization forms a counter-attack, a way of traveling back in time to prevent humanity's end. Serena Mirai, a "normal" human, is unwillingly brought to Chaldea to aid the effort. However, after everything goes wrong, she and a few other survivors are tasked to complete the "Grand Order" to save humanity.

No matter where you are, even if you're somewhere far away... even if our souls are worlds apart, even if you're across the galaxy, even if I have to defy fate itself... I will always look for you... This promise that I made to you on that sunrise, this promise that crosses through time and space, this promise that breaks every known boundary... ...I'll make sure that I keep it.