As the hit new boardgame FGO Duel spreads throughout the populace, Ritsuka, Shirou, and Hakuno find themselves joining in with the craze. As Ritsuka comes across a figure that should never have existed, though, the dark truth behind FGO Duel's existence will draw all three into a game far more deadly than they expected. Heed the cry: "Duel, Go!"

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?

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]

A story about a Master besides Ritsuka who's in Chaldea and interacts with the people of Chaldea. Just another Fate/Grand Order OC story. Rated M for the creative freedom and heavy topics of child experimentation.

He truly had problems understanding how fast things were going. Waking up one day in a strange place was the least of his problems when people started calling him a god, a golden king began giving him orders, and a green haired clay playing around with him, all he wanted was a break. (short chapters but long story. Please give it a try.)

In the end times, the World did not survive an eldritch onslaught. It and the Counter Force united to save the last Hero of Humanity, transporting him across time and space with the required reserves for his adventure. Another adventure to save the world, a parallel reality where the Age of the Gods still thrived. A world where Humanity is in consistent danger of the supernatural.

Dedicated man reincarnated as the Norse Hero Sigurd. Decides to shift his and certain people's fates due to his actions that make him look like a madman with the assistance of his system.

Ishtar wants to gift her Master for his hard work during the holiday season. One-shot. cute fluff (Gudao/Ishtar)

The flower wizard and the great genius of humanity they made one that replicates the second true magic, Queen Boudica offered to go in EMIYA's place.

A guy becomes Shirou, but wait- why is Illya younger? And why is Irisviel here? And why does he have the First Magic? And why is Illya so cute? ! (Self Insert Shirou in Kaleid x Prisma Trio)

The Heavens Feel ended with her sacrifice in the hopes it could stop the nascent god from ending the world. Yet, the ending is just the beginning as Sakura was tossed somewhere else through space and time. Reborn with her form changed a desire to find a way to return remained in her even after everything. A wish that will call her hopefully back to where it all started.

The Fourth Holy Grail War goes much differently, and yet ends in the same disaster. It's surviors crippled, scarred or dead with Shirou Emiya being forged in the fire of just the mere shadow of all the worlds evils. And yet something is not quite right. Flowers bloom in the mud, and as Shirou grows, he'll find that the sins of the past run much further back then he can imagine.

When Zelretch notices that the Master of Chaldea is in danger, he sends his best agents to help. Hang on Chaldea, Rin and Shirou are on their way! Cross-posted on Ao3.

Un hombre hecho de espadas, un hombre forjado en el fuego y lágrimas ajenas. Emiya Shirou luchara en la Guerra por el Santo Grial como siempre ha estado destinado, pero el encuentro con un viejo amigo y una mujer desconocida, cambiara el camino que recorrerá ¿Podrá mantener sus ideales o los traicionará?

Einzbern's success in a sinister, post-Grail Wars project leads to an alliance of convenience with the Antarctic Aryan Reich. This allows them to send Schneeweißchen von Fernhügel back to the Fourth Holy Grail War, with the goal of changing recent history for unknown ends.

En una tendencia donde reencarnas en cualquier cosa, no debería sorprender hacerlo en un personaje que ni siquiera existe. Self-insert en uno de los candidatos.(No se toma enserio)

"Echos of Eternity : Uncovering the past"

Esta, es la historia sobre un tipo que escribió una novela sobre el mismo siendo un personaje principal ridículamente poderoso (self insert) por aburrimiento y lo grabó en la historia humana, sólo para ser invocado a la Cuarta Guerra del Santo Grial con seres más allá de su comprensión. El karma es una perra. La historia fue adoptada de X-kalibuur escritor ingles en fanfiction.

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

Fue solo curiosidad que se extendió a cada año. Una figura que todos conocían, pero de la que nadie deseaba hablar. Un conocido, un extraño, un amigo o un desconocido. Nada importaba ahora, solo deseaba poder comprender que había debajo de esa red que no parecía pensante. Ella no buscó una luz guía. Ella buscaba ser esa luz.

About a decade after the dismantlement of the Heaven's Feel system, it has been rebuilt by a singular genius. The Holy Grail War begins again, against the wishes of those who live in this town.

It has been thirty years since the last Holy Grail War, which ended with the Grail's destruction. But now, a new Grail has finally been created and the Mages Association is prepared to test it out. Their new site for the war? Tokyo. And now, new Masters and Servants step out onto this stage for the first time, with some familiar names. Including, Tohsaka Rin's daughter. SYOC!

As a the last Master of Chaldea, Ritsuka Fujimaru is constantly tired and frustrated. So to help her, Merlin turns her into a Futanari! With a new craving for sex and pleasure, Ritsuka starts to sleep with her servants one by one. Even her sweet kohai, Mash, is not safe from her senpai's newfound lust! How will Chaldea fair as it's only Master becomes a sexual deviant!

He looked upon the warm sun, and so was reminded of a promise.

For each Master, a Servant. For each Servant, a Master. The relic system was never introduced, and every Master in the Grail Wars has always received a Servant based on their own personality alone. Now, the Magus Killer goes to war - and receives his greatest weapon yet. But even with all of Assassin's skill and treachery, can they stand against the raw power of the Fourth War?