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Half Life : A Path Divided by discet04 reviews
What if Chell had managed to fight off the party escort box after her showdown with GLaDOS. Freed from the Enrichment Center to explore the world beyond, for better or worse. "Things have changed since the last time you left the building. What's going on out there will make you wish you were back in here..."
Crossover - Half-Life & Portal - Rated: T - English - Adventure/Hurt/Comfort - Chapters: 4 - Words: 23,265 - Reviews: 6 - Favs: 14 - Follows: 21 - Updated: 7/21/2017 - Published: 1/19/2017 - Alyx V., Chell, D. Rattmann
Evil Science Inator by The Fan of lemons reviews
Doofenshnirtz is taking some Portal inspiration for his next scheme. What's next?- This is my first Fan fiction enjoy
Crossover - Portal & Phineas and Ferb - Rated: K+ - English - Chapters: 1 - Words: 289 - Reviews: 1 - Published: 1/21
FNAF still alive lyric :D by cocacolagod
i turned the portal song 'Still alive' into five nights at freddy's :P
Crossover - Five Nights at Freddy´s & Portal - Rated: K+ - English - Parody/Mystery - Chapters: 1 - Words: 307 - Published: 1/16 - Freddy Fazbear - Complete
Living Another's Lives by Rand0m0bs3ss10ns reviews
Kadie's just a rogue internet persona who's been rogue for long enough, and Kim's tired of Kadie doing whatever she wants. Long story short, Kadie is now forced to live as several humans whose lives tie together. Will she figure out how to fix this? Or will you all suddenly find her in an alley outside your house?
Crossover - Misc. Games & Portal - Rated: K+ - English - Adventure/Sci-Fi - Chapters: 1 - Words: 613 - Reviews: 1 - Published: 1/14
The Science Within Us by chen8386
Carter Lion, a 21 year old college sophomore, is working on a new device that allows the travel of great distances with just a single step. And with the prom close by, he meets a young chinchilla woman who, despite being without make up, suits his taste.
Crossover - Portal & Sonic X - Rated: T - English - Sci-Fi/Romance - Chapters: 1 - Words: 1,519 - Favs: 1 - Follows: 1 - Published: 1/8
Magical Core by Frosted Shade reviews
What would happen if Wheatley, GLaDOS and a turret got sucked in a portal to be a mage's familiar? Well, at least GLaDOS would have multiple tests subjects now... watch out Halkeginia!
Crossover - Familiar of Zero & Portal - Rated: T - English - Humor/Adventure - Chapters: 2 - Words: 516 - Reviews: 1 - Favs: 4 - Follows: 3 - Published: 12/31/2017
A Facility of Monsters by Rubyghast reviews
Aperture Laboratories: One of the most esteemed scientific research facilities in the world, full of fresh new ideas, and run by some of The Doctor's less friendlier acquaintances. (A crossover with an AU twist)
Crossover - Doctor Who & Portal - Rated: T - English - Chapters: 3 - Words: 3,372 - Reviews: 1 - Favs: 1 - Follows: 1 - Updated: 12/30/2017 - Published: 12/21/2017
The Things We Do For Science by Kineil D. Wicks reviews
Cooperative testing is supposed to bring people together through science. Cake is often a good motivator, but escaping a madhouse that tries to pass itself off as a science facility works better. Will they escape? Or will the facility keep them clutched in its iron grasp forever?...
Crossover - Portal & Don't Starve - Rated: T - English - Adventure - Chapters: 52 - Words: 47,288 - Reviews: 11 - Favs: 4 - Follows: 5 - Updated: 12/29/2017 - Published: 5/5/2015 - Wilson H., Willow
Aperture Plainsburo by Thegamerdude256 reviews
After a strange set of circumstances, Gregory House finds himself in Aperture Science. What will happen GLaDOS is activated. Can House heat all of the tests, before his sarcasm makes GLaDOS kill him herself.
Crossover - House, M.D. & Portal - Rated: T - English - Adventure/Humor - Chapters: 3 - Words: 5,163 - Reviews: 3 - Favs: 3 - Follows: 7 - Updated: 12/28/2017 - Published: 1/9/2017
RWBY: Continuing Science by roboman007 reviews
After finally escaping Aperture for the last time, Chell wonders what to do for her life. Well, she has a new and improved portal gun, and Huntress sounds like a decent job. (AU)
Crossover - Portal & RWBY - Rated: T - English - Humor - Chapters: 10 - Words: 25,625 - Reviews: 43 - Favs: 68 - Follows: 105 - Updated: 12/8/2017 - Published: 5/23/2017 - Chell, Team RWBY
Portal: Pokemon Edition by Voltaradragoness reviews
Waking up as Pokemon,and not remembering how or why it happened,these three will have to work together if they want to return to Aperture with their sanity in-check. Rated T for swearing.
Crossover - Pokémon & Portal - Rated: T - English - Adventure/Humor - Chapters: 4 - Words: 9,872 - Reviews: 10 - Favs: 3 - Follows: 8 - Updated: 12/2/2017 - Published: 10/24/2017 - GLaDOS
The Human Vault - Equilibrium, Pt1 by TheScienceOwl reviews
Three years following Chell's exile to the surface, GLaDOS unearths a dark mystery that had been buried in the confines of the human vault, and with it sets into motion a chain of events that will change Aperture forever. Yet on the surface, in the war torn City 6, Chell is left to protect the facility - her only home - and its secrets from the greedy hands of the Combine.
Crossover - Half-Life & Portal - Rated: T - English - Sci-Fi/Drama - Chapters: 3 - Words: 5,988 - Reviews: 4 - Favs: 7 - Follows: 17 - Updated: 12/1/2017 - Published: 11/17/2017 - G-Man, Chell, GLaDOS, Wheatley
We don't need Portals by BlackNightmareDragon reviews
When a modified DeLorean and a lightning bolt get Doc and Marty stuck in a post-apocalyptic America, their only hope of a way home is to investigate a shed. But when that shed hides more than just tools, they discover a whole underground scientific labyrinth, a couple of crazy AIs and the adventure of a lifetime.
Crossover - Back to the Future & Portal - Rated: T - English - Adventure/Friendship - Chapters: 20 - Words: 45,778 - Reviews: 1 - Favs: 17 - Follows: 14 - Updated: 11/12/2017 - Published: 1/30/2016 - Doc/Dr. Emmett Brown, Marty McFly, GLaDOS, Wheatley
Of Theives and Portal Guns by Aperture Science Turret reviews
Follow our favourite phantom thief, KID, as he navigates Aperture after being thrown down into the earth after another of Snake's attempts to kill him. Who knows, he may actually have succeeded this time, with the supposed dead mantis men after him and an irrate super computer with no love of humans.
Crossover - Detective Conan/Case Closed & Portal - Rated: K+ - English - Adventure/Humor - Chapters: 6 - Words: 6,767 - Reviews: 6 - Favs: 2 - Follows: 9 - Updated: 10/18/2017 - Published: 10/10/2012 - Kaito K., GLaDOS
The Experiment by Poujoshy reviews
You're a turret in the Aperture Science Laboratories and then... It happened
Crossover - Pokémon & Portal - Rated: T - English - Mystery/Sci-Fi - Chapters: 10 - Words: 4,923 - Reviews: 1 - Follows: 1 - Updated: 10/16/2017 - Published: 10/3/2017 - Eevee/Eievui, Turret
Just How Can a Computer Do Magic? ! by Quatermass reviews
("Is Your Great-Aunt an AI!" sequel) GLaDOS has learned how to do magic, and is going to be teaching at Hogwarts. And it's just as well, for a plot is afoot to cause trouble at Hogwarts. Can a genius, if insane, computer and her great-nephew Harry stop things from spiralling out of control? Or will the beast of the Chamber of Secrets thwart even GLaDOS and Harry?
Crossover - Harry Potter & Portal - Rated: T - English - Humor/Fantasy - Chapters: 6 - Words: 15,435 - Reviews: 109 - Favs: 802 - Follows: 1,039 - Updated: 9/26/2017 - Published: 3/13/2017 - [Harry P., Hermione G.] Chell, GLaDOS
Times Change by Periwinklerene reviews
Three years after Portal 2, the Doctor finds Wheatley desperate and dying and tries to help him by taking him back to Aperture to fix him. Something goes wrong, and slowly the two find that they're at the center of something much, much bigger than themselves. (Updates on this story are available on my profile page)
Crossover - Doctor Who & Portal - Rated: T - English - Adventure/Sci-Fi - Chapters: 6 - Words: 16,117 - Reviews: 16 - Favs: 25 - Follows: 43 - Updated: 8/30/2017 - Published: 10/10/2016 - 10th Doctor, Chell, GLaDOS, Wheatley
Zoey's Portal Adventure by BluXRE
So, from anything I would not have thought for sometime now. I had to unleash this story. Because in the pairs I put here. It is not them in love, it's the characters their going to play as. But if you don't notice is that Zoey Chell Johnson is being tested by Dottie GLaDOS, and Zoey doesn't know why everyone isn't here. Will she find out the answer? Read and find out why.
Crossover - Total Drama series & Portal - Rated: T - English - Adventure/Sci-Fi - Chapters: 1 - Words: 841 - Published: 8/2/2017 - [Zoey, Chell] [OC, GLaDOS]
The Lost Subjects by Samthebutcher reviews
The monsters left the Underground, and with Frisk as their ambassador, they made peace with the humans, right? Wrong. The humans apprehend them and send them to a certain lab in Michigan where they are placed under hibernation for further use. They are forgotten for many years, until a bored GLaDOS wakes them up. Rated T because minor death.
Crossover - Portal & Undertale - Rated: T - English - Supernatural/Sci-Fi - Chapters: 3 - Words: 1,759 - Reviews: 5 - Favs: 4 - Follows: 8 - Updated: 7/29/2017 - Published: 7/27/2017
Finally Human (A Portal Fanfiction) RETURNING by Morgan64 reviews
What would happen if Wheatley and GLaDoS were finally human?
Crossover - Half-Life & Portal - Rated: T - English - Sci-Fi/Mystery - Chapters: 3 - Words: 813 - Reviews: 1 - Favs: 3 - Follows: 2 - Updated: 7/22/2017 - Published: 12/2/2015
Portalborn by Experiment 282 reviews
In the land of Skyrim, the Dragonborn is a hot-blooded thrill seeker. An encounter with a weird man and a talking meteorite ball thing that rambles about space sets her off on something weird indeed...
Crossover - Elder Scroll series & Portal - Rated: T - English - Adventure/Humor - Chapters: 66 - Words: 402,219 - Reviews: 75 - Favs: 101 - Follows: 86 - Updated: 7/15/2017 - Published: 2/17/2012 - Dragonborn/Dovahkiin, D. Rattmann, Wheatley, Chell
Portal 2 - Chell's Afterlife by deathleader reviews
Just as Chell was leaving The center something happend... to find you look inside
Crossover - Portal & Half-Life - Rated: T - English - Chapters: 11 - Words: 16,250 - Reviews: 2 - Favs: 3 - Follows: 4 - Updated: 7/14/2017 - Published: 1/30/2014 - Chell
Dan vs Aperture Laboratories, a Dan vsPortal Crossover by artistwithouttalent reviews
Dan seeks vengeance on the applied science company after they cheat him out of a portal device.
Crossover - Portal & Dan Vs. - Rated: T - English - Humor - Chapters: 8 - Words: 7,695 - Reviews: 19 - Favs: 13 - Follows: 16 - Updated: 7/5/2017 - Published: 7/21/2013 - GLaDOS, Dan, Elise, Chris
Insert Creative and Witty Title Here by Invisible Prince
In another world Aperture Science is run by three sisters Aversa the eldest, Robin and Grima the twins after the death of their father. Flash forward now all three sisters are married and happy running Aperture and raising their children who of course are having fun lives with the crazy products and the psychotic android,
Crossover - Fire Emblem & Portal - Rated: T - English - Family/Humor - Chapters: 1 - Words: 2,187 - Favs: 2 - Follows: 1 - Published: 5/17/2017 - Avatar/Robin, Morgan, Chell, GLaDOS
Aperture Kirby by sonicautobot
GLaDOS finds Kirby in a test chamber and decides to antagonize Chell by giving him to her. What could possibly go wrong. Written for class with a fellow student
Crossover - Kirby & Portal - Rated: K - English - Chapters: 1 - Words: 966 - Favs: 1 - Follows: 1 - Published: 4/26/2017 - Kirby, Waddle Doo, Chell, GLaDOS
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