Portal Crossovers
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AvengersAperture Series Intro by Floof The Fabulous reviews
Everything you need to know to get started in the Avengers/Aperture series, starring Loki and his family, GLaDOS and her Minion, and a whole lot of interdimensional shenanigans. Have fun!
Crossover - Portal & Avengers - Rated: K - English - Adventure/Humor - Chapters: 1 - Words: 280 - Reviews: 2 - Favs: 4 - Follows: 2 - Published: 1/21/2014 - Complete
Colour by TheVillageOfBree reviews
Chell successfully escapes from Aperture and on instinct runs to the first human she sees. implied Chell/Gordon
Crossover - Half-Life & Portal - Rated: K+ - English - Chapters: 3 - Words: 1,626 - Reviews: 5 - Favs: 17 - Follows: 9 - Updated: 1/7/2014 - Published: 9/20/2012 - Gordon F., Chell - Complete
Magically Aperture by goodsamaritanbear reviews
Wheatley. Hogwarts. He needs ALL the luck.
Crossover - Harry Potter & Portal - Rated: K - English - Humor - Chapters: 4 - Words: 4,869 - Reviews: 20 - Favs: 46 - Follows: 56 - Updated: 1/3/2014 - Published: 2/7/2012 - Wheatley
the nightmare before portal by izfan26 reviews
Jack wakes up in aperture and has to help a congregation of misphits to escape. but will he end up saving a strange woman who no one recognizes? why is she muttering about cake and lemons? and what is her connection to the powermad A.I. in charge of the show? post-NBC, post-P0rtal, human bots, Chelley. rated because, you know, p0rtal
Crossover - Nightmare Before Christmas & Portal - Rated: T - English - Adventure/Humor - Chapters: 10 - Words: 7,115 - Reviews: 2 - Favs: 3 - Follows: 3 - Updated: 12/31/2013 - Published: 11/5/2013 - Jack S., Chell, GLaDOS, Wheatley
When I Almost Crossed the Bridge by Indigo Code reviews
I straightened up, looking at the suited man square in the face. He held the last page of the script up in both of his hands, pinching the center of the top edge, one hand tilted to the right, one tilted to the left, one twitch of the hand away from tearing the sheet in two. "Tell me… Miss. Chell… do you wish to die?" - The "G-Man is God in disguise" theory is used here.
Crossover - Half-Life & Portal - Rated: T - English - Chapters: 1 - Words: 2,164 - Reviews: 1 - Favs: 5 - Follows: 3 - Published: 12/23/2013 - G-Man, Chell, D. Rattmann, Wheatley - Complete
TBPT2: Journey To The Center Of Aperture Science by Joshweiser22 reviews
The sequel to my fanfiction "The Big Portal Theory"! What will happen to the Big Bang Theory crew when they see Chell's note? All that happens to Chell and more will finally be revealed!
Crossover - Big Bang Theory & Portal - Rated: K+ - English - Humor/Sci-Fi - Chapters: 6 - Words: 3,427 - Reviews: 3 - Favs: 7 - Follows: 7 - Updated: 12/22/2013 - Published: 9/24/2012
Testing Serenity by craziebaci reviews
What happens when Aperture Science was funded by the Alliance?
Crossover - Firefly & Portal - Rated: T - English - Adventure - Chapters: 5 - Words: 5,762 - Reviews: 1 - Favs: 8 - Follows: 16 - Updated: 12/16/2013 - Published: 11/12/2012 - R. Tam, Chell
Safe by Indigo Code reviews
Chell finds herself sitting in an office with the most slap-happy maniacs in history. With the "Arrogant Hero", the "Bushy-Eyebrowed Man", the "Frilly One", the "Asian Man", and the "Unsettling Innocent-Faced Russian" nothing can go wrong! Right? Yeah... You don't expect "nothing" from the Allies. No longer a One-Shot... I think.
Crossover - Portal & Hetalia - Axis Powers - Rated: K+ - English - Humor - Chapters: 2 - Words: 3,911 - Reviews: 7 - Favs: 21 - Follows: 13 - Updated: 12/12/2013 - Published: 4/12/2013 - Chell, Canada
A Portal to a New World by 100Cat reviews
The cast from Battle for Dream Island and Inanimate Insanity are stuck in Aperture, and need to help each other to get out. However, GLaDOS made special tests for them with the help of an object... A little romance. And spoilers for II and BFDIA I guess Also, the first few chapters are not very good, but please don't stop there!
Crossover - Portal & Web Shows - Rated: T - English - Adventure/Romance - Chapters: 13 - Words: 8,436 - Reviews: 13 - Favs: 11 - Follows: 7 - Updated: 12/8/2013 - Published: 7/15/2013 - Complete
Portal to Deceptions by LittleSpringroll
It's Portal. It's Star Trek. What more could you possibly ask for? Follow Captain Kirk, Saavik and the Enterprise crew as they chase through the galaxy after an evil computer who's kidnapped - you guessed it - Spock! Encounter old friends like Chell, new friends like Sophe and…Turrets. Also, the Companion Cube's got a nasty little secret; or does it?
Crossover - StarTrek: The Original Series & Portal - Rated: T - English - Adventure - Chapters: 1 - Words: 5,446 - Favs: 1 - Follows: 1 - Published: 11/27/2013 - Saavik, Chell
Déjà vu by leijonion reviews
Chell is offered a deal from a strange man in a suit. Adrian Shepard is woken from some kind of stasis. The universe likes to repeat itself, sometimes in odd ways. (OH WOW ANOTHER HALF-LIFE/PORTAL CROSSOVER HOW ORIGINAL!1! But yeah. I haven't written in 100 years, so excuse me if I write in ways that seem off. Just tell me in the reviews, or pm me, and I'll improve! I promise!)
Crossover - Half-Life & Portal - Rated: K - English - Adventure/Friendship - Chapters: 2 - Words: 810 - Reviews: 2 - Favs: 1 - Follows: 2 - Updated: 11/25/2013 - Published: 11/10/2013
Beyond: Two Portals by Hawki reviews
Oneshot: GLaDOS was used to dealing with uncooperative test subjects. What she wasn't used to was dealing with test subjects that had phantasms as allies.
Crossover - Portal & Beyond: Two Souls - Rated: K+ - English - Parody/Humor - Chapters: 1 - Words: 558 - Reviews: 2 - Favs: 5 - Follows: 2 - Published: 11/22/2013 - GLaDOS, Jodie H., Aiden - Complete
The Strange Laboratories by Maddie8972 reviews
*CANCELLED* This story was kinda stupid to begin with. Don't know why I ever thought it'd work. Do yourself a favor and don't read this. Ever.
Crossover - Portal & Club penguin - Rated: T - English - Humor/Adventure - Chapters: 1 - Words: 594 - Reviews: 1 - Follows: 1 - Published: 11/7/2013 - GLaDOS, Wheatley, Turret, OC
Do Daleks Dream of Electric Cake? by Mattaf reviews
When the facility is raided by a squad of Daleks, GLaDOS is simply thrilled at the chance to torture new and fascinating test subjects. Unfortunately for her, the Daleks may prove to be more trouble than she bargained for...
Crossover - Doctor Who & Portal - Rated: K+ - English - Sci-Fi/Humor - Chapters: 8 - Words: 10,220 - Reviews: 57 - Favs: 92 - Follows: 105 - Updated: 11/4/2013 - Published: 4/12/2012 - Daleks, GLaDOS
A Test To Remember! by DatawolfYT reviews
When Chell is removed from Aperture Science she vows to return no matter the cost. All she has to do is find that someone that can match the omnipotent AI GLaDOS.
Crossover - Artemis Fowl & Portal - Rated: T - English - Adventure/Drama - Chapters: 13 - Words: 8,533 - Reviews: 24 - Favs: 6 - Follows: 12 - Updated: 11/4/2013 - Published: 4/4/2012 - Artemis F., Holly S., GLaDOS, Wheatley - Complete
Invader Zim Portal Songs Re-Wright by Emogirl10590 reviews
These are the songs from portal's 1 and 2. Rewritten and a Invader Zim addition. Review
Crossover - Invader Zim & Portal - Rated: T - English - Hurt/Comfort/Friendship - Chapters: 1 - Words: 882 - Reviews: 1 - Favs: 3 - Follows: 1 - Published: 10/19/2013 - Zim, GLaDOS - Complete
Doctorin' Aperture by pikadidi-in-the-TARDIS reviews
The Doctor falls into the paralel universe of Aperture Science and stuff happens. I'm really bad at summaryes. T 'cause I'm paranoid
Crossover - Doctor Who & Portal - Rated: T - English - Sci-Fi - Chapters: 2 - Words: 829 - Reviews: 2 - Favs: 6 - Follows: 7 - Published: 10/15/2013 - 10th Doctor, GLaDOS
The Aperture Games by vifetoile89 reviews
President Snow has made an unprecedented choice for the 75th Quarter Quell: the Aperture Science Enrichment Center. But there are more things below the earth than are dreamt of in his philosophy, including robots, opera, and a mute lunatic. AU.
Crossover - Portal & Hunger Games - Rated: T - English - Adventure - Chapters: 24 - Words: 86,860 - Reviews: 87 - Favs: 183 - Follows: 149 - Updated: 10/5/2013 - Published: 3/9/2012 - Chell, Katniss E. - Complete
Don't be a Hypocrite by Indigo Code reviews
Long after the events of Portal II, Chell has been taken in by the personification of America and England. All goes well until fate causes Wheatley to return. Oddly enough England seems to hate him more than the former test subject does. And Wheatley, who writhes at the concept of a grudge, comes over for a visit and tries to make amends. One-Shot!
Crossover - Portal & Hetalia - Axis Powers - Rated: K+ - English - Chapters: 1 - Words: 2,950 - Reviews: 1 - Favs: 10 - Follows: 3 - Published: 10/4/2013 - Wheatley, England/Britain - Complete
Episode 3 by koosschwartz7 reviews
A continuation of Chell and Gordon Freeman's story, their fates intertwining to the grand finale. The effects of the Borealis, the Combine's last stand and friendships between characters, this is the ending to the Half life and Portal stories.
Crossover - Half-Life & Portal - Rated: T - English - Sci-Fi/Adventure - Chapters: 11 - Words: 13,016 - Reviews: 8 - Favs: 30 - Follows: 11 - Updated: 9/30/2013 - Published: 8/29/2013 - Alyx V., Barney C., Gordon F., Chell - Complete
Amestris Laboratories by die-hard-4-anime reviews
With Hughes running out of time, Mustang decides to help him gather the rest of the remaining test subjects, Edward and Alphonse Elric, to escape as a dying request for time's sake. But what happens when they awaken a certain AI? What is the Elrics' connection with this place? The answers may be beneath their feet... Rated T for Ed's mouth and future violence. EdWin, Royai NO OCs!
Crossover - Fullmetal Alchemist & Portal - Rated: T - English - Adventure/Sci-Fi - Chapters: 5 - Words: 8,403 - Reviews: 3 - Favs: 7 - Follows: 10 - Updated: 9/22/2013 - Published: 8/4/2013 - Alphonse E., Edward E., Maes H., Roy M.
A Forgotten Past by ChakraTurret reviews
Upon being freed from Aperture, Chell stumbles upon a device hidden inside her companion cube with her name on it. The device reminds her of faces she has seen before, recognizing these people as family and eager to find out more, she uses the device to create a portal to another world, grasping and chasing after what little fragments she can remember.
Crossover - Naruto & Portal - Rated: T - English - Humor/Drama - Chapters: 5 - Words: 5,586 - Reviews: 4 - Favs: 14 - Follows: 18 - Updated: 9/10/2013 - Published: 9/6/2013
Experimental Charms by Lord Irish reviews
"The name's Daxter. Mark Daxter. I'm a private Auror." That's how he would start his books. When he had adventures, he would write about them. He knew he would have them, because all private detectives had adventures, even the Muggle ones.
Crossover - Harry Potter & Portal - Rated: K - English - Humor/Adventure - Chapters: 1 - Words: 2,943 - Reviews: 1 - Favs: 3 - Follows: 1 - Published: 9/7/2013 - OC - Complete
PortalHalf-Life: Ghost Ship by iammemyself reviews
Alyx Vance and Gordon Freeman locate the Borealis, but they might not find what they were expecting to find...
Crossover - Half-Life & Portal - Rated: K - English - Chapters: 1 - Words: 4,649 - Reviews: 7 - Favs: 24 - Follows: 21 - Published: 9/6/2013 - Alyx V., Gordon F., GLaDOS
Appature by Kiwi ingenuity reviews
AU. After the artificial intelligence in control of the Appature Science research facility goes haywire, Hal Jordan and his friends are tasked to create a new AI to replace it. But things quickly start to go awry, and the only one left who can help complete their mission is Razer, the troublesome new test subject.
Crossover - Portal & Green Lantern: The Animated Series - Rated: T - English - Sci-Fi/Adventure - Chapters: 5 - Words: 5,187 - Reviews: 6 - Favs: 7 - Follows: 7 - Updated: 9/3/2013 - Published: 4/26/2013
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