This Is During The Indomitus Crusade, when group of Primaris Space Marines and Rubicon Primaris, found world where there's no Great Rift or Cicatrix Maledictum.

Only war has engulfed the 41st Millennium, also other crap. Like a Guardsmen catching all the missing Primarchs like Pokémon's. Hmmmm.... Primussy

Tragedy hits Issei and is transported to a mysterious world. Without his boosted gear, he must face himself and the horror of this new world. Though he is not alone as Issei shall meet the Emperor's great creations, his daughters. Suited with a power to rival creations itself. Issei hero of the Imperium and the broken. LONG LIVE ISSEI HERO OF MANKIND. Scp-themes. Art belongs to Cnmbwjx. I dont own any of the two works in this story. thank you

Meet Y/n, your everyday man who lives your every day life in the current day. A fan of the greatest franchises in our day of age. Halo, Gears of War, and Warhamemer 40k. He and His friends loving to make what ifs involving these universes. This however would lead them down a path that God Emperor of Man had paved to bring these souls into the Grim Dark Future, and bring Humanity to its rightful place as the Rulers of the Galaxy

...........What did you expect the bio of the story, come on, we know that no one reads it, almost never read the story to understand

The Emperor of Mankind has failed in his quest to bring humanity to the glory days he has envisioned. His Imperium of Man is now in disarray and with him close to death, the age of humanity will fall to the clutches of Chaos and Xenos. But maybe, it shouldn't just end like this. Mustering up his very power at his disposal, the Emperor of Mankind will send a piece of himself into another place, another reality or another dimension where ever thought he failed in his dream for humanity to evolve, at least he will do a second chance. Maybe undo the mistakes he has made. Woe and behold, he succeed... In a world where not only are all the biblical bullshit that he has heard are not only real but are not as clear cut as he might think but now, he has contend with a lot of perverted shit he is about to meet. Because by the fucking Emperor, he is the motherfucking Emperor. So, tell me... What the fuck is this shit? Inspired by 'Void Given Form - ABANDONED, explanation chapter 27 Bonus, 28' by 'Ediros'...

The Empress of Mankind, an incredibly powerful being that unified humanity under one banner after the end of the Age of Strife. She would go on to create her daughters, the Matriarchs, demigods that represented different aspects of war and would lead their Sons, the Space Marine Legions into battle. After they were scattered across the galaxy the Empress began a crusade to reclaim her daughters and unite humanity under the Imperium. However what if the Matriarchs and their Legions were not the first? What if the Empress created a Legion to test the idea of the Space Marines? What would happen if the Matriarchs crossed paths with this secret Legion? Perhaps there is hope for humanity in the Grim Darkness of the future. Warhammer 40k belongs to Games Workshop, I own my OCs and the plot.

Gideon, hailing from a distant world in the Imperium's domain, was recruited into the ranks of the Dark Angels as a promising aspirant. Trained in the unforgiving crucible of the chapter's fortress-monastery, he demonstrated exceptional skill and unwavering loyalty, earning him a place among the revered Deathwing. Throughout his service, Gideon has distinguished himself in numerous battles against the myriad threats that plague the Imperium. His resilience in combat and unwavering dedication to duty have earned him the respect of his comrades and the trust of his superiors. However, Gideon harbors a deep-seated curiosity about the enigmatic past of the Dark Angels and the secrets that shroud their history. As he delves deeper into the mysteries surrounding the Fallen and the true nature of his chapter's allegiance, Gideon finds himself walking a precarious path between loyalty to his chapter and the pursuit of truth. Despite the ever-present dangers and the weight of his chapter's secrets, Gideon remains resolute in his commitment to the Emperor and the Lion, ready to confront whatever challenges lie ahead in the grim darkness of the far future.

After the council of Nikaea, Malcador sent the emperor some old tapes that's highlighted as "TTS-1" and "TTS-2", He'll have to invite every single one of his sons to watch it... Let the carnage begins, hehe (A/n: Yes, there will be a 2nd Primarch, my personal OC)

Being the prince of the empire, Y/n must journey and find new ways to secure his place. He must forge alliances and conquer enemies. But can he stay true to his people?