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How To Train Your Hiccup- Why No One Wants Hiccup as a Test Subject by TreenBeen
Glad0s thinks she's found a great new test subject. She's wrong. She's got a crazy viking inventor on her hands.
Crossover - Portal & How to Train Your Dragon - Rated: K+ - English - Humor - Chapters: 1 - Words: 1,038 - Favs: 2 - Published: 14h - GLaDOS, Hiccup - Complete
Compy: Chrono Convergence by GingerFloof26 reviews
The third installment in the "Compy" series. GLaDOS, now known as Compy, sends the Borealis to her old ally, Lucca Ashtear. But when the Combine steal the Frozen Flame of Chronopolis, will it be an opportunity to make amends with her past, or will it doom all their worlds to destruction?
Crossover - Chrono Trigger & Portal - Rated: T - English - Romance/Sci-Fi - Chapters: 13 - Words: 19,624 - Reviews: 5 - Updated: 20h - Published: 4/27
The Aperture Science Enhanced Enrichment Apparatus by Order of The Fourth Wall
Kazuto and Asuna get a strange letter from a company named Aperture regarding some old helmets found in a landfill.
Crossover - Portal & Sword Art Online/ソードアート・オンライン - Rated: T - English - Sci-Fi - Chapters: 7 - Words: 7,385 - Favs: 1 - Follows: 1 - Updated: 23h - Published: 7/10 - GLaDOS, Wheatley, Kirito/Kazuto K., Asuna/Asuna Y.
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: 16 - Words: 10,523 - Reviews: 3 - Favs: 1 - Follows: 3 - Updated: 7/30 - Published: 5/5 - Wilson H., Willow
1920s Portal x Half Life by talietikasero
A 1920s double AU in which Aperture and Black Mesa are rival crime organizations, headed by Caroline and Breen respectively, and a night out turns into something unexpected
Crossover - Half-Life & Portal - Rated: K - English - Chapters: 7 - Words: 21,002 - Favs: 1 - Follows: 1 - Updated: 7/30 - Published: 8/25/2014 - Gordon F., Caroline, Chell
Mentality by Tom Riverson reviews
3 kids wake up in an office and they try to escape a bizarre world.
Crossover - Portal & Stanley Parable - Rated: T - English - Adventure/Fantasy - Chapters: 16 - Words: 4,284 - Reviews: 1 - Updated: 7/30 - Published: 6/23 - GLaDOS, OC, Narrator
Mystery Dungeon: Portal Rescue Team by Xelac reviews
GLaDOS, Chell, Wheatley, and others from Aperture find themselves stuck in another universe and turned into Pokemon. With nothing else to do, the form a rescue team as an excuse to explore Dungeons and search for leads on how they got into this world and how they can get home.
Crossover - Pokémon & Portal - Rated: K+ - English - Adventure/Humor - Chapters: 3 - Words: 12,425 - Reviews: 11 - Favs: 10 - Follows: 11 - Updated: 7/29 - Published: 3/27 - Chell, GLaDOS, Wheatley
Now You're Thinking with Real Science by Jaywings reviews
A former test subject, now free, takes up residence in a strange town where almost nothing is considered abnormal. A year later, a young paranormal enthusiast spots two odd new satellites orbiting the moon and immediately makes plans to bring them to Earth, firmly believing that the two metal spheres are alien in origin. Because, after all, what else could they possibly be?
Crossover - Invader Zim & Portal - Rated: T - English - Adventure/Friendship - Chapters: 19 - Words: 126,058 - Reviews: 92 - Favs: 58 - Follows: 78 - Updated: 7/23 - Published: 8/6/2013 - Dib, Zim, Wheatley, GLaDOS
Aimless by cacy11
Wheatley, Rick and the Space Core float across the mining ship Red Dwarf and are brought aboard by the crew. Set after Portal 2 and Red Dwarf series 10.
Crossover - Red Dwarf & Portal - Rated: T - English - Chapters: 1 - Words: 746 - Published: 7/21
Aperture: Mercenaries Turned Subjects by Sheppard Studios reviews
"Cave here. We abducted two giant human looking animal creatures from some foreign system, and we're gonna stick them into a few test chambers to see what happens. I've been informed that they shouldn't be in the same room or they'll try and kill each other, but that came from the lab-boys and what do they know? We're just throwing science at the wall to see what sticks."
Crossover - Star Fox & Portal - Rated: T - English - Adventure/Sci-Fi - Chapters: 1 - Words: 2,778 - Reviews: 6 - Favs: 3 - Follows: 7 - Published: 7/11 - Fox M., Wolf O'D., Cave Johnson
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: 50 - Words: 346,281 - Reviews: 73 - Favs: 68 - Follows: 67 - Updated: 7/11 - Published: 2/17/2012 - Dragonborn/Dovahkiin, D. Rattmann, Wheatley, Chell
Five Nights at Aperture by hyacinthorectus reviews
A long time ago, Freddy and his gang of mascots were hired to entertain the children in Bring Your Daughter to Work Day. Now, the animals are back for revenge. Will GLaDOS and Chell survive the night?
Crossover - Portal & Five Nights at Freddy´s - Rated: K+ - English - Mystery/Horror - Chapters: 4 - Words: 8,259 - Reviews: 17 - Favs: 25 - Follows: 35 - Updated: 7/5 - Published: 8/29/2014 - Chell, GLaDOS
Cretacious Universe by Tesla Defense Blagger
Alexander Tesla appears on an island with no memory of who he is. He tries to find the other people, and succeeds, but only after 5 years does he discover the truth. And when he does? This story is mainly of survival, sci-fy, and a few dating scenes. Tesla Defense's advanced AI technology plays a very large role, being a main character.
Crossover - Jurassic Park & Portal - Rated: T - English - Sci-Fi/Romance - Chapters: 1 - Words: 482 - Published: 7/1
Winds of Change by du911
My hand at a time travel fic! What do you get when you mix a hyperactive blonde, two time-lost parents, and an idiot savant that keeps blowing things up?...It won't end well; I'll tell you that much! Inspired by Hektol!
Crossover - Naruto & Portal - Rated: T - English - Sci-Fi/Supernatural - Chapters: 1 - Words: 203 - Follows: 1 - Published: 7/1 - [Hinata H., Naruto U.] Cave Johnson
My little Pony Friendship is Portals by Golden Light 001 reviews
Chell after finally escaping Aperture Science Fines herself in a clearing in the Everfree Forest after getting to the edge of the forest she get a surprise that she never expected. P.S. Please do not complain about the companion cube with a dead person in it thank you. Minor cussing or major cussing. Up For Adoption!
Crossover - My Little Pony & Portal - Rated: T - English - Adventure/Friendship - Chapters: 7 - Words: 2,640 - Reviews: 10 - Favs: 8 - Follows: 10 - Updated: 6/30 - Published: 4/30/2014 - Fluttershy, Rainbow Dash, Twilight Sparkle, Chell
The New Story by PixelsShattered reviews
After escaping Aperture, Chell finds herself in a new place, with a new voice, and no way out. Reviews super appreciated. Rated T out of paranoia
Crossover - Portal & Stanley Parable - Rated: T - English - Humor/Adventure - Chapters: 7 - Words: 5,473 - Reviews: 3 - Favs: 3 - Follows: 2 - Updated: 6/30 - Published: 2/22 - Chell, Weighted Companion Cube, Stanley, Narrator - Complete
GLaDtobeyourfriend by TheExpL0DiNgaPplE reviews
Fluttershy has stumbled upon something hidden deep in the Everfree Forest only to bring about something from the past. Something ancient has been hiding for a VERY longtime. Something very GlaD to be still alive and back.
Crossover - My Little Pony & Portal - Rated: T - English - Adventure/Friendship - Chapters: 17 - Words: 36,567 - Reviews: 26 - Favs: 16 - Follows: 30 - Updated: 6/23 - Published: 12/14/2014 - Twilight Sparkle, Fluttershy, GLaDOS, Wheatley
The Gravelpit Testing Initiative by PixelsShattered reviews
ATLAS and P-Body are sold to RED and BLU to participate as the tenth class in a never ending war! Acting as the 'Portaleirs', each must fight for the worthless gravel pits beneath them. Rated T for alcohol and battle. Review!
Crossover - Portal & Team Fortress 2 - Rated: T - English - Humor/Friendship - Chapters: 6 - Words: 5,577 - Reviews: 7 - Favs: 3 - Follows: 3 - Updated: 6/19 - Published: 4/2 - ATLAS, P-body
These are no trials Their test chambers by Bearcat Girl
What would happen if instead of the scorch the gladers went to Aperture Labs? What if they meet a certain mute and idiot core? All will be revealed.
Crossover - Portal & Maze Runner Trilogy - Rated: T - English - Humor/Adventure - Chapters: 1 - Words: 220 - Published: 6/5
Superiority Complex by Dalek Time Controller
The Dalek Time Controller leads an attack on Aperture Science, but GLaDOS gives him more trouble than he anticipated. Meanwhile the Master and Wheatley discover a threat to the existence of the universe. Part 1 of a trilogy and my first story. Changes of perspective may seem abrupt, sorry, Fanfictiondotnet didn't recognise my paragraph breaks.
Crossover - Doctor Who & Portal - Rated: K+ - English - Sci-Fi - Chapters: 8 - Words: 15,631 - Follows: 1 - Published: 6/3 - Daleks, The Master, GLaDOS, Wheatley - Complete
A Week at Aperture Science by Kingtutgaming reviews
"Cave Johnson here! I have been informed by some pencil pushers that I need to do a documentary on a new creature we have made called Inklings. Usually I wouldn't bother doing this and would've just fired them by now, but I have a week to spare until the moon rocks I ordered get here."
Crossover - Portal & Splatoon - Rated: K+ - English - Chapters: 1 - Words: 1,227 - Reviews: 15 - Favs: 19 - Follows: 8 - Published: 5/24 - Cave Johnson
Moleman's Epic Rap Battles 32: GLaDOS Vs SHODAN by MolemanNineThousand
In an obvious and popular matchup which I'm surprised had yet to be made as a satisfactory Epic Rap Battle, Portal's quirky antagonist goes up against the malevolent supercomputer of System Shock fame, with a surprise appearance by the most vile machine ever conceived. Video: /watch?v NFZiKUCVG6Q
Crossover - Portal & System Shock - Rated: T - English - Humor/Parody - Chapters: 1 - Words: 954 - Published: 5/21 - GLaDOS, Shodan - Complete
Worlds Collide by nadiarose1205 reviews
GLADoS gets bored of just testing with Chell, and the robots Atlas and Peabody don't interest her. So being the supercomputer that she is, GLADoS finds Tony Stark in a hidden Apeture Laboratories file, and of course wanting the best, she kidnaps him and places him in a testing chamber. What will happen when the worlds of Iron Man and Portal collide? Who knows. Let the fun begin.
Crossover - Ironman & Portal - Rated: T - English - Adventure/Friendship - Chapters: 1 - Words: 837 - Reviews: 1 - Follows: 1 - Published: 5/20 - A. E. Stark/Tony, Chell, GLaDOS, Wheatley
The Clockwork Heart by CodyNaomiSwire reviews
A Portal / Night Castle (Trans-Siberian Orchestra album) crossover - Chell wakes up to find herself washed ashore on a beach, with a mysterious castle awaiting her on the cliff top... A random, fairytale-like one-shot. Chelley, both Android! and Human!Wheatley
Crossover - Misc. Plays/Musicals & Portal - Rated: K+ - English - Hurt/Comfort/Fantasy - Chapters: 1 - Words: 4,270 - Reviews: 1 - Favs: 1 - Published: 5/19 - Chell, Wheatley - Complete
General by Star Shimer reviews
This is the story of Aperture Science Laboratories Head of Security. Or, as he would later be known, General. Portal(one and two) X Half-life. Contains Android(ish) OC.
Crossover - Half-Life & Portal - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 740 - Reviews: 1 - Published: 5/18 - G-Man, OC, GLaDOS
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