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Take a third option
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Focus: General All Categories, Since: 09-14-11
Founder: Independent Dude - Stories: 314 - Followers: 7 - id: 95260
Community for good crossover stories that cross over 3 or more separate universes, and make you wish there was a way to list a story in more than two categories. Can be mega crossovers.

The Iron String by theicemenace reviews
When a new designer drug makes its way onto the streets of the US, Aaron Cross is drawn back into his former life as Outcome 5, and calls on a couple of old friends for help. Who could be committing such a heinous act and why? Aaron, John Sheppard and NYPD Detective Javier Esposito join forces to stop the culprit before more people die. Rated T for drug use/language/violence.
Crossover - Stargate: Atlantis & Bourne series - Rated: T - English - Drama/Suspense - Chapters: 12 - Words: 57,412 - Reviews: 23 - Favs: 10 - Follows: 20 - Updated: 12/23/2013 - Published: 7/21/2013 - John S., Aaron C./Kenneth K., OC - Complete
The Keeper of the Artifacts by Lorraine Anderson reviews
Warehouse 13, the Library - what happens when the two places go after the same artifact? First Published in Our Favorite Things 28.
Crossover - Librarian & Warehouse 13 - Rated: K+ - English - Humor - Chapters: 1 - Words: 6,470 - Reviews: 12 - Favs: 42 - Follows: 16 - Published: 6/9/2013 - Flynn C., Myka B., Pete L. - Complete
Batman & Benson by Mcfergeson reviews
Detective Olivia Benson goes to Gotham City to interview an important witness in a slave trafficking case that the SVU squad is working on. But once in Gotham City, Olivia finds herself caught up in an epic adventure with an unlikely partner: the Batman.
Law and Order: SVU - Rated: T - English - Adventure - Chapters: 8 - Words: 27,751 - Reviews: 88 - Favs: 90 - Follows: 36 - Updated: 12/26/2005 - Published: 11/18/2005 - Complete
Imhotep's Key by JoeB1451 reviews
(Part 2 of ROS)(BuffyRainbow SixThe Mummy) Anck-su-namun is back and she has discovered that the Key to bringing back her dead love is living in Sunnydale.
Buffy X-overs - Rated: T - English - Adventure - Chapters: 23 - Words: 107,589 - Reviews: 285 - Favs: 55 - Follows: 42 - Updated: 7/9/2007 - Published: 12/5/2003
Star Trek M5 by JovianJeff reviews
This is initially a ST/Bolo crossover. The AIs, the M5s, of this work of fiction are based on the works of Keith Laumer and the Star trek TOS episode 'Ultimate Computer.' Later chapters include xovers with Babylon 5 and Farscape.
TV X-overs - Rated: T - English - Chapters: 6 - Words: 48,091 - Reviews: 27 - Favs: 65 - Follows: 58 - Updated: 1/26/2010 - Published: 3/24/2009
Archangel by milady dragon reviews
AU - Sequel to "Contagion". When a powerful yet low-level telepathic signal incapacitates the Tomorrow People, Torchwood investigates. What they find leads them to the company Magister Innovations, the Archangel Network...and the Last of the Time Lords. Crossover with The Tomorrow People, Doctor Who, and Castle.
Crossover - Torchwood & Tomorrow People - Rated: T - English - Sci-Fi/Adventure - Chapters: 12 - Words: 35,874 - Reviews: 44 - Favs: 41 - Follows: 26 - Updated: 11/29/2013 - Published: 4/23/2013 - [Ianto J., Jack H.] John - Complete
The Birth of Iconia by wesleyehowell reviews
Book 1 of the Iconia Continuum. Also contains elements of Star Trek. Stargate Command turns to Global Dynamics for help developing technology to battle the Ori. What do the Q have to do with this? Part One of the Iconia Continuum.
Crossover - Stargate: SG-1 & Eureka - Rated: K+ - English - Sci-Fi/Adventure - Chapters: 23 - Words: 103,656 - Reviews: 34 - Favs: 111 - Follows: 105 - Updated: 4/17/2014 - Published: 11/14/2013 - S. Carter, D. Jackson, J. O'Neill, Jack C. - Complete
for SCIENCE! by Tjin reviews
Xanders car is eaten by a weird blue portal and he gets transported somewhere else, can his day get any worse?
Crossover - Buffy: The Vampire Slayer & Eureka - Rated: K+ - English - Chapters: 3 - Words: 3,520 - Reviews: 19 - Favs: 85 - Follows: 98 - Updated: 11/9/2013 - Published: 11/5/2013
The Doctor and The Parallel Universes by IronSpockMaster reviews
Instructions inside. Basically, give me a prompt and I'll write you a one shot. Have fun prompting :
Crossover - Doctor Who & X-overs - Rated: M - English - Humor/Parody - Chapters: 7 - Words: 10,931 - Reviews: 24 - Favs: 2 - Follows: 5 - Updated: 6/1/2011 - Published: 8/20/2010
Hellmouth or Time Rift by kyuketsuki21 reviews
The Doctor and Donna land in Sunnydale and meet up with Spike and Buffy along with the rest of the Scooby gang. Merlin crossover in Chapter 7.
Crossover - Buffy: The Vampire Slayer & Doctor Who - Rated: T - English - Sci-Fi/Adventure - Chapters: 12 - Words: 58,103 - Reviews: 18 - Favs: 20 - Follows: 31 - Updated: 3/12/2014 - Published: 8/1/2011 - Buffy S., 10th Doctor
The World After the End by insane-silentium
Revised:After some morons spread a plague, many people are dying. Now there's some apocalypse going on and the characters will have to deal with it. AU Fic. OCs. Slight Crackfic. Mega Crossover.
Crossover - Misc. Movies & Stand - Rated: T - English - Chapters: 11 - Words: 35,429 - Updated: 3/12/2012 - Published: 1/25/2012
Hell's Shadow by LilyoftheValley4 reviews
There are fates worth than death and places worse than hell that people live in every day. It used to be my job to help those people, until I became one of them. Who is there left to help me?
Crossover - Law and Order: SVU & Hardy Boys/Nancy Drew - Rated: M - English - Mystery/Angst - Chapters: 4 - Words: 8,379 - Reviews: 11 - Favs: 4 - Follows: 10 - Updated: 2/28/2010 - Published: 1/19/2010
Infinite Possibilities by Viwiel Singollo reviews
A collection of mainly Buffy-centered crossovers. Supernatural, Leverage, Mentalist, Pirates of the Caribbean, Harry Potter, Chaos, New Amsterdam, Criminal Minds, Batman, Veronica Mars, Losers, Dresden Files, Sons of Anarchy, Glee, Gossip Girl.
Crossover - Buffy: The Vampire Slayer & Buffy X-overs - Rated: K - English - Chapters: 16 - Words: 8,601 - Reviews: 11 - Favs: 13 - Follows: 24 - Updated: 7/9/2013 - Published: 4/17/2011 - Buffy S.
Armageddon by Batboys of Baker Street reviews
Sequel to "Beauty the Beast" Ever wonder what Martha did during the Year of Hell? What Torchwood was up to? What the Winchesters, BAU, CBI, and SBPD were doing? What about NCIS and Sherlock? Multiple fandoms band together to fight the Master's control over earth. FINALLY COMPLETED!
Crossover - Doctor Who & Criminal Minds - Rated: T - English - Sci-Fi/Horror - Chapters: 65 - Words: 296,928 - Reviews: 273 - Favs: 132 - Follows: 141 - Updated: 6/10/2017 - Published: 6/6/2012 - 10th Doctor, S. Reid - Complete
League of Exceptionals by The Threat reviews
What would happen when you put some contemporary heroes, or anti-heroes of fiction together in one story? Also, this story will resemble the League-formula more closely than my earlier one.
League of Extraordinary Gentlemen - Rated: T - English - Adventure/Mystery - Chapters: 21 - Words: 31,489 - Reviews: 22 - Favs: 5 - Follows: 1 - Updated: 2/4/2009 - Published: 12/31/2008 - Complete
Interception by The Threat reviews
Moving on from my last story, 'Somewhere Far Far Away', one Hero will help the Doctor fight an old enemy.
Crossover - Doctor Who & Heroes - Rated: T - English - Sci-Fi/Adventure - Chapters: 11 - Words: 9,611 - Reviews: 1 - Favs: 2 - Updated: 3/22/2013 - Published: 11/17/2012 - 8th Doctor - Complete
What's that awkward thing? by RED REDDINGTON
This is a crossover between 30 Rock and House M.D. with a little Vampire Diaries in it.. Hope you like it..
Crossover - House, M.D. & 30 Rock - Rated: T - English - Drama/Angst - Chapters: 1 - Words: 1,281 - Favs: 1 - Published: 5/24/2010 - G. House, Kenneth P. - Complete
Death's Head: Epoch Rising by wickedmetalviking1990 reviews
unofficial sequel to "Revenge of the Master" and Part II of the Death's Head prequels. The 11th Doctor meets a human with the ability to manipulate time and suddenly begins premature regeneration. Does the Empress of Time hold the only answer? Can this mysterious new face save the Doctor from the coming of the Reapers and their darkest master? Rated T for language and violence.
Crossover - Doctor Who & Prince of Persia - Rated: T - English - Sci-Fi/Fantasy - Chapters: 10 - Words: 15,499 - Reviews: 20 - Favs: 3 - Follows: 3 - Updated: 5/15/2013 - Published: 4/14/2013 - 11th Doctor - Complete
There's Something About Broadchurch by WholesaleRomance reviews
The Winchesters, The Doctor, Rose and Alec Hardy have to solve the mystery of who or what is murdering the children of Broadchurch and leaving them on the same beach where Danny Latimer died before it's too late.
Crossover - Doctor Who & Broadchurch - Rated: T - English - Drama/Adventure - Chapters: 1 - Words: 2,181 - Reviews: 1 - Favs: 1 - Follows: 3 - Published: 8/28/2013 - 10th Doctor, Rose T., Alec H.
Three People Billy Never Slept With by A.j reviews
Crossover story. BsG, House, and SGA. BillyJeanCuddyTeyla. Three people Billy never slept with.
Battlestar Galactica: 2003 - Rated: M - English - Humor - Chapters: 1 - Words: 3,194 - Reviews: 1 - Favs: 1 - Follows: 1 - Published: 5/31/2008 - Billy K. - Complete
Changing the Death Toll by PaBurke reviews
Save the children, get them out of here. BtVS/SW/SG1 crossover
Crossover - Star Wars & Buffy: The Vampire Slayer - Rated: T - English - Chapters: 1 - Words: 19,072 - Reviews: 55 - Favs: 215 - Follows: 72 - Published: 3/10/2009 - Complete
Unlikely Hunters by Lucillia reviews
A series of oneshots in which some rather unlikely Hunters ply their trade. Multiple crossovers.
Crossover - Supernatural & TV X-overs - Rated: K+ - English - Chapters: 6 - Words: 2,400 - Reviews: 9 - Favs: 29 - Follows: 26 - Updated: 4/30/2013 - Published: 1/17/2011
Jumping at Shadows by Cyclone reviews
First contact between the United Earth Alliance and the Minbari Federation goes horribly wrong.
Crossover - Babylon 5 & Robotech/Macross - Rated: T - English - Sci-Fi/Drama - Chapters: 12 - Words: 34,477 - Reviews: 133 - Favs: 238 - Follows: 228 - Updated: 7/5/2012 - Published: 6/4/2011
Stargate Thirdspace: Halo What If by andrewjameswilliams reviews
SG Thirdspace AU. What might have happened if Rivendell and her escort squadron had arrived in another universe to Babylon Five verse.
TV X-overs - Rated: K+ - English - Sci-Fi/Adventure - Chapters: 2 - Words: 14,363 - Reviews: 100 - Favs: 245 - Follows: 259 - Updated: 8/10/2010 - Published: 12/22/2009
Intersections by Roseveare reviews
Five intersections into the life of Jake Foley. A Jake 2.0, Miracles, BtVS, Invisible Man, Dark Angel, Firefly crossover.
Jake 2.0 - Rated: K+ - English - Chapters: 1 - Words: 3,734 - Reviews: 8 - Favs: 10 - Follows: 2 - Published: 3/22/2006 - Complete
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