Arcturus Magnus, Sagittarum of the Legio Custodes, has fought for years within the webway and the Impossible City. Upon taking a near-fatal wound, the Emperor Himself removes Arcturus from the front, sending him instead to bring forth reinforcements from the Mechanicum. When something goes wrong during the return, where does this Custodian find himself?

Having foreseen a vision of the End Times and its cause, Queen Ariel creates a plan to stop the apocalypse from ever occurring. Sending forth her trustest subordinates, the Sisters of Twilight, and the child destined to become the next Everchosen of Chaos to a new world in hopes that the apocalypse can be averted.

After preventing a Chaos warband from summoning a vast army onto an Imperial world, an Inquisitor in training is hurtled through the warp and finds himself in a strange new world, one in which there are people with incredible abilities. Soon he will find himself fighting a familiar enemy and in order to save mankind he will need to cast aside old prejudices. Now has a tvtropes page

Taken from the destruction of the Old World by a desperate spell, Settra the Imperishable, King of Kings, finds himself in a new land of supposed queens and would-be kings, with the promise of new conquests and new glories. And he did say 'War', and Eostia did tremble.

With the world destroyed, Vlad Von Carstein drifted in the endless limbo. Until an unstable God decides it world be amusing to see how he world affect Skyrim during the rise of the Last Dragonborn. What could possibly go wrong.

The Old World, Bretonnia, while King Louen Leoncœur gathers his army, a strange phenomenon occurs... a new ally appears Hakuno Kishinami, sent from the Moon Cell to fight the Chaos.

Shortly after their initial battle with Emperor Belos, Luz finds herself dejected at the loss of her portal home. The good news is that Eda has multiple portal doors, the bad news is that Luz chose to open one that leads to the grim darkness of the far future. Rated T for occasional cursing.

Nazarick shows up in warhammer world in 2400IC after a hypothetical end of Overlord.

In an unexpected and highly unlikely turn of events, a catastrophic warp breach from a crippled ship manages to fling a Rogue Trader - or rather, the youngest son of a Rogue Trader - through time and space to a universe quite unlike what anyone on-board in used to. They make the best of the situation.

When he was a young boy, Harry Potter disappeared while on an outing with his family. Now, a decade later he has returned, but he has changed from what everyone hoped. Harry has abandoned the chaos of magic for the cold certainty of steel. With technology none could imagine and his god walking once more, the world will never be the same as an Empire arises millennium early.

Olesya could feel the end was near, but there was something she could do to change things. Not for this world but for another, the Bridge of Shadows was of far more grand design than even the Elves knew. She could not save this world, but with the help of some old associates, she knew they could do the impossible. (Featuring the Vermintide cast & characters from Gotrick and Felix)

The words of House Dayne are simple: "We Bring the Dawn". A long-lost son returns home, the beginning of the storm to come. Hell comes to Westeros, and it's up to the scattered Forces of Order to stand against the darkness once more. Will they stand alone? Will the Archenemy? Corruption spreads, and light dwindles. But rejoice, for we the Knights of Bretonnia, shall be your shield.

Tanya gets reincarnated into the universe of 40K on the planet of Krieg.

After the golden throne fails, the emperor decides to pull one last card. Using the immeasurable amount of power he accumulated, he moves an 20th century era Earth into the galaxy of mass effect.

Following the War of the Thorns and the Battles for Mordheim and Mount Hyjal several hundred Night Elf Sentinels and hundreds of Alliance Pioneers are trapped in the Empire. Knowing that the Horde had formed an Alliance with Enemies of the Empire, Shandris to save her home, and return successfully must convince them to a join a war they do not know yet that they have stakes in.

Shirou Emiya from one of the bad endings, somehow managed to escape being dissolved by the grail and ends on warhammer 40k universe, during the unification wars, a new adventure begins.

The sci-fi fantasy crossover to end all sci-fi fantasy crossovers. Star Wars? Got it! Warhammer? Yes we do! Halo? You bet! Dungeons and Dragons? Also on my list! Oh look, there’s also stuff from Mechwarrior, Transformers, Marvel Comics, Avatar, RWBY, and lots more! Time to combine all those universes into one!

In the inferno at the end of the Fourth Grail War, a broken boy becomes host to another broken thing, drawn by the dark light of the flames, leading to both becoming something no one could have predicted. Shirou x Harem. Crossover with the RH!Warhammer 40000, one of my other stories. NOT canon to the Roboutian Heresy !

A Gate opened in a certain world, one world where Mankind is hunted down, weak, limited. A Gate opened, welcoming an Imperium, where Mankind is also haunted, but one where humanity is willing to face the monsters that surrounds it. Two forces, each one totally opposite to the other. And in the middle of all, innocents who never thought this dread fate could fall over them.

Years after the trade Federations failed blockade of Naboo, two Padawans are sent on their first mission to the outer rim. What they discover is the beginnings of a Green Tide that if not stopped, will sweep the Galaxy.

The Death Korps of Krieg are renowned across the Imperium for their fearlessness, unshakable willpower, and suicidal devotion to the Emperor. Cut off from their allies and abandoned on a previously undiscovered world, one lone Korpsman is challenged with the most daunting task any Krieger could face: Finding a reason to live.

After his last harrowing adventure and near death experience, Commissar Ciaphas Cain, HERO OF THE IMPERIUM, finds himself 'battling' untold hordes of greenskins that only Slaanesh could love from far beyond The Emperor's reach. Only the new allies he meets on this Emperor forsaken planet can help him escape in one piece and enjoy his retirement. May The Emperor have mercy on them.

Sometimes, small things can have unforeseen consequences. Like the butterfly causing an hurricane. Or the nail costing a war. Or the snotling messing around where he shouldn't causing the rise of a different kind of hero... "Awigt den, come have a go, ya gits! Waaaaagggghh!"

The Fall of Cadia did much to the morale of the Imperium. As the Cicatrix Maledictum and its recurring Warp-Storms opened, one such storm caught, at the whim of a higher being, a Regiment of almost 5,000 soldiers more young than most you'd see in the Guard, shipping them to a new world, with new threats and, perhaps, a chance at Retribution.

The continent stands on the verge of war as tensions grow between the power-hungry Nilgaardian empire and the proud Northern realms. until it was broken by a more sinister force that unleashed the horrors of a world eternally at war. Facing imminent destruction, new heroes will emerge, kingdoms will fall, and a dark storm gathers.