The Empress of man had created 20 Primarchs to be her generals and leaders during the great crusade. Each one had there own unique and special abilities. However something went wrong and a extra primarch was born, the man YN LN would lead the 21st Legion against the horrors of the galaxy. Can he bound with his fellow warlords and unite the galaxy, or will he watch it burn?

​He was the only son of the Emperor who dared to call the Imperium a failure. ​Primarch Valerius was lost to the annals of history, a forgotten relic of the Great Crusade. Unlike his zealous brothers, Valerius was not ruled by faith or fury, but by one absolute law: The Doctrine of Necessary Utility. ​When the Sovereign Arbiter of Humanity's Survival returns, he finds the Imperium crippled by superstition, bureaucracy, and a war fought with obsolete doctrine. The revered Codex Astartes is merely a roadmap to failure, and the High Lords are worse than any Xenos threat. ​Valerius refuses to lead a rebellion. Instead, he begins a surgical, systematic crusade to prove that the only path to survival is absolute, ruthless efficiency. He builds the Aegis Imperium, unites the fragmented Space Marine Chapters under his cold, logical command, and forces Roboute Guilliman to yield to a new form of governance. ​His purpose is singular, and his final vow is the most dangerous of all: to gather forbidden relics, breach Holy Terra, and attempt the impossible-to restore his broken father on the Golden Throne. ​A Primarch's logic will either save humanity or shatter it forever. Experience the saga of the Primarch who broke every rule of the 41st Millennium to fulfill the Final Vow.

This takes place in the Future of The Emperor's Successor. An Unknown time has passed and after some climatic battle Lucien was able to send his Imperium across the with Multiversal Travel to expand The Imperium and elighten other species out there or help them during a crisis. However when the Lucien New Space Marines and other Space Marine Chapters who are now Legions once again were attacked by The Forces of Chaos. One of The Imperium's new space travel The Space Bridge Jump went wrong both forces were teleported to another realm. There they seperate and crashed down on a planet that seems to be ancient Terra(Earth) Which are crawling with Abominbal Intelligences called Raptures. And the only thing that is preventing Humantiny's Extiction were Goddess's of Victory known as the Nikkes...... But little did they know that 42nd millennia's Finest warriors are here to help them take back their world.

El Doom Slayer en el universo de Warhammer 40K ¡Hola a todos! Un día me encontraba experimentando con ChatGPT y se me ocurrió pedirle que creara una historia en la que el Doom Slayer llegara al universo de Warhammer 40,000. El resultado fue tan interesante que decidí compartirlo con ustedes. Espero que lo disfruten tanto como yo al leerlo.

Un chico de un país hispanohablante, es contactado por el Emperador, para evitar la actualidad de milenio 41. Asi el chico tendra que remplazar a uno de los hijos del emperador, aquel que dirige la II legión de astartes

Estoy solo en un mundo de la antigua confederación, No se que soy...pero estos niños son mi única razón de vivir

Mientras la Gran Cruzada continúa, los Dioses del Caos planean la caída de la Emperatriz de la Humanidad. Todos excepto Slaanesh, que está enojada porque sus hermanos no la dejan unirse. Por eso, en lugar de eso, hará que su Príncipe Demonio favorito se divierta con las hijas de la Emperatriz. Créditos a su autor: https://archiveofourown.org/works/50357149/navigate

Todos conocemos la historia, El Emperador de la Humanidad crea Veinte Primarcas para conquistar la Galaxia. Nueve Caen en la corrupción del Caos y dejan que la galaxia arda. ¿Y si este no fuera el caso? ¿Qué pasa si los Poderes Ruinosos nunca pusieron sus garras en los Hijos del Emperador? ¿Qué pasaría si el Imperio Ascendiera en lugar de caer en la oscuridad y el sufrimiento? Esta es la historia de esa posibilidad. Libro I de un Fanfiction en curso dentro del universo de Warhammer 40k.

Story regarding the excellent universes of Warhammer 40K and Cyberpunk 2077 (Mostly the Cyberpunk: Edgerunners) - Follow the tracks of ever more misfitting group than ever! Now Introducing: 010000010000000001100100000000000111011000000000011001010000000001101110000000000111010000000000. May the Omnissiach preserve us...

After the Horus Heresy. The Emperor of Mankind in his last ditch effort to keep The Imperium going he gave his successor his powers and most importantly his life so he can rebuild the damages to the Imperium. But what he didn't know that this will cause a shift that will change the Galaxy Lucien, Now the Emperor's Successor must change the Imperium, The Galaxy or maybe the universe all together to fix its problem, with his army, his cold logical words or by force