When a slipspace jump goes awry, John and Cortana ends up in an alternate reality. They continue to do the task they were bred to do, root out threats, and neutralise them. But some things that happen... unexpectedly.

The Doctor and Avril land on Reach, a beautiful Alien planet. But things aren't as they seem, the Doctor has got the date wrong again. The Doctor has been kidnapped and Avril left in the heat of the battle. Will both travellers be returning to the TARDIS?

The galaxy believed that humanity was represented by the Systems Alliance, but they never accounted the United Nations Space Command. PostME2.

yeah the navi won but the RDA's got a trick up there sleeve and return for revenge.oh yeah a old navi enemy returns

Eva, last of her Spartan Team, is sent, head over ass, to an unknown universe of magic and willpower. Now facing Louise, and serving as her familiar, Eva and Louise set out to many unparalleled adventure.

MLP:FiM and RVB crossover. Post RvB revelation. After a freak accident sends them to Equestria, the Red and Blue teams must join forces with ponyville to find a way back home and defeat an old nemesis. Rated T for swearing and violence

Follow the story of taskforce member Marcus when the Covenant invade Reach. Set just before and during the early chapters of Combat Evolved. Some OC's.

Follow the stories of four Humans and two Covenant soldiers during, after and even before the war between Mankind and the Covenant began. Some OC's.

A combination of circumstances, events, etc, operating by chance to bring good or ill towards a person...I just got screwed over. Now my 'best friend' and I are God knows where with God knows who followed by God knows what...Just another day as an ODST...

What would it be like if Caboose had accidentally found himself in the world of Harry Potter and found himself becoming best friends with Hermione Granger?

Cancelled, Another story will be taking this one's place

Master Chief has crashed on Middle Earth and is helping the Fellowship defeat Sauron. As they travel together, Legolas finds himself mysteriously drawn to this stranger from space...

AU: four spartans dispatched to guard a unknown artifact are transported to where they would never expect A/N:Discontinued

Warhammer and Halo AU, this is to take the entire galaxy by storm, let them come to face oblivion, space marines, imperium, chaos, and all those who seek them. The spartans hold fast, for they shall not fall. So let's see you flame. CH2 is ready.

The Dusk till Dawn of the UCAF has entered into the unknown and now on the other side of the equation the crew finds itself lost in the time of mass effect. OOPs mistake...

2554 the age of new adventures and old friends, revelation begins... We're back! I am not rewritting today, please read through later! NEW UPDATE CH31, the return of an old hero, and the end of a age of peace, it is all in the plan... read on to the end.

Mankind. Reclaimers. The designated inheritors of the galaxy the Forerunners once swore to protect. In the middle of one war for survival, another threat emerges from the stars as humanity seeks to fulfill its destiny...by any means necessary. Eva/Halo

Semi-serious or at least trying to be . After Kiritsugu dies, ONI scouts young shirou for the Spartan III program. Story set after Shirou saves the galaxy and right before Grail War. Let the zaniness begin! Shirou / Harem

A UNSC prowler has discovered the existence of an unknown alien contact which may prove to be hostile. With the UNSC on the rise after the Covenant-Human War, would they be able to stop the new threat before it is too late?

After finishing the fight, the Master Chief appears in orbit of Earth, but not the Earth he knows. Now he must join the Black Rebellion, and make his way home. But he may not be as alone as he thought...

Commander Shepard has three new dossier's and has to find the new companions and gain their trust but with new friends come old enemies. Story involes mass effect, halo and knight of the old republic.

Halo and Mass Effect Crossover. Follows Petty Officer Kieran O'Rourke from REACH to Earth, but not quite the way he remembered it. Don't forget to leave a review, it's very helpful, and appreciated... Be constructive.

Lieutenant SPARTAN-B312, also known as Noble Six was saved from Reach. She found herself in a blue box with a man called Doctor. Dr. Halsey has warned her and given her a gift. So why is she is Cardiff? All she knows is her duty...Survive and protect

the TF2 gang are accedentaly teleported into the haloverse were they must survive or perish by the covenant onslaught.

It seems that even in the year 2545, some things never change. A sequel of sorts to the GL story by Alan Moore.