A Greater Demon of Tzeentch sends a Inquisitor of the Ordo Hereticus, an Imperial Guardsman, a Eldar Farseer, and an Eldar Ranger into the mass effect universe. This fanfic takes place during Mass Effect 2 and I chose to have Garrus be the one Shepard got first.

Three of the most powerful Eldar craftworlds; Biel Tan, Ulthwe and Iyanden have chosen to flee their own universe and seek refuge from the eternity of war. They have arrived in a new galaxy plagued by it's own problems, and they have some un-invited guests wth them. Can Shepard stop the Reapers when everything she thought she knew is shifting around her.

He had lead his people through the War in Heaven. He had shattered the gods themselves and united a galaxy against all odds. But how would he fare in another one entirely?

What if there were no Humans in Mass Effect? What if there were Orks instead? The Council would have a lot less sleep, for one thing.

Warhammer 30k Pre-Heresy and Mass Effect 2 crossover. The 25th Expeditionary Fleet, with the Alpha Legion, is en route to a pacification when something very unexpected happens …

Greetings. This Crossover will be brutal and direct. The Main protagonist will be four chaos cultist and of course the mass effect crew. I will not glue the Chaos folks with Shepard. Still they will "Interact" with each other. As you see I rate my story as M for obvious reasons. There will be Tyranid,Orks and a special surprise. Beside that grab pop corn and beverage and enjoy!

Talomin has lived his life as the favored slave of his Night Lord masters. While he and his masters raid the zealous members of the Word Bearers, Talomin is flung through the Warp to Omega. Stuck in the Mass Effect universe, he will now exist to spread terror as the Night Lord.

In the dark future of the 41st millennium there is only war. And from this universe something has come. Several somethings. They maybe odd and slightly nefarious but Commander Jane Shepard will take all the help she can get in the fight against the Reapers. Even if that help comes in the form of traitors.

after the reapers are destroyed by Shepard he was thrown from the citadel to plummet down to earth, after being found by tali and placed in a medi-bay, after being released and returning to the Normandy he finds a lightning storm in space...the horrors it spews forth are unrelenting

Following Saren's and Sovereign's defeat, Shepard and her allies strive to rebuild and recuperate from the battle. Unbeknownst to them, a far more destructive force is about to make its grand entrace into the galactic stage, with grim implications for the future of the human race. WH40k x MassEffect [[Disclaimer, this is an old unfinished story, do not expect any further updates]]

A freak accident hurls an Imperial warship into an unknown universe. The believes of both the indigenous peoples and the newcomers will be tested and an inquisitor will have to decide the fate of himself and those around him.

"No army is big enough to conquer the galaxy. But faith alone can overturn the universe", Missionaries are skilled in oration, manipulation, and subtly changing a culture to bring it into line with the Imperial Cult, replacing the gods of the existing pantheon with Imperial Saints, they are also often skilled warriors not above the use of brute force.

A rogue trader and his fleet are blown into the Mass Effect Universe. As they cruise the galaxy looking for adventure, power and most importantly profit they must survive the many challenges ahead. One of which is the fleet of Kaptain Bludchoppa, a Freeboota bent on pillaging the galaxy! Caught in the crossfire, the peoples of the Mass Effect universe must scramble to survive.

Commander Shepard was a capable commander, but what if she had help from another commander? A Force Commander? Fem-Shep and OC-centric. Hiatus

None are more devout or more fanatical than the Sororitas and none more than the Sisters of Battle among their ranks. They scour all before them that would mar human perfection, purging the xeno, heretic, and mutant with no pity with remorse. Nothing of alien origin lives where they tread, but how does one sister's faith fare when she is confronted with a world that is so wrong?

It is in the early stages of the 2nd Sphere of Expansion that we discovered the Turians. And it was through the Turians we encountered the Citadel. And it was through them that we found ourselves at war. Though we do not desire conflict. We will fight. And we will win. For we follow the path of the Tau'va, the Greater Good. And that path will lead us to victory.

A lost ship containing a broken guard unit and a company of spaces marines. A son considered lost are cast through the warp and end up in the Mass Effect Universe. How will the forces of the Imperium react to their new reality. The Geth, Collectors, and the Reapers will know beings who know no fear. The galaxy will have to deal with a power greater than any other encountered before

When the Emperor sends a fleet to another galaxy as part of a larger plan, history will forever be changed and there will only be war... Rated: M for 40k R&R

A first contact story done without butchering the Warhammer 40k lore and does not result in the exterminatus of all the Mass Effect universe. A small newly commissioned Wrath Class Cruiser is sent to investigate a small artifact activated from a small Waaagh. Whereas everyone else sees heresy that should be purged, Quintilius sees potential. M for 40k. Will be graphic. OC galore.

Inquisitor Everard Gerage has served the Emperor for over two centuries. His most recent investigation leads him to the fringe of Imperial space, and a confrontation between a dangerous cult leader. Madness follows and he finds himself in a new galaxy. One that preaches peace and tolerance. Everard must find a new purpose before all is destroyed by an ancient evil.

The chaos gods are planning something, just as The Great Crusade starts to get to its climax. In respond to this, the Emperor forms a task force from four different Astarte legions to go to the Mass Effect world to stop chaos from gaining a foot hold, in other universes. { At the end of M2, early start of M3}

All he wanted to do was kill his mortal enemy. Now Rogue Trader Darius Augustin finds himself in a strange universe without an Imperium and without an Emperor. Mind you... Without any competition, he could turn a pretty profit here. Perhaps not all is lost...

3rd Installment- Times, Trials and Tribulations of Marcus Thol. Things have gone to the ass end of a grox for Kill Team Smurf. Trapped on a Kroot transport with no way out, they decide to finish the mission. But higher powers have bigger plans. A favor from one deity to another has given them new life. {Updated 06/28/15}

A scout trooper from the Tanith First and Only and a Eldar are transported to the Mass Effect universe, follow the story of how a legend was born from two warriors. (Cancelled, no longer writing for this.)

More than 2000 years have past and the infamous Dwarf Trollslayer, Gotrek Gurnisson, continues to search for a mighty doom. Accompanying him is Felix Jaeger, an accomplished Human scholar and poet from the Empire. A warp jump on a Lizardman ship goes awry, sending the two heroes and their allies to, hopefully, a mighty Doom! [Warhammer Fantasy/Mass Effect]