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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: 20 - Words: 43,188 - Reviews: 62 - Favs: 57 - Follows: 83 - Updated: 7/6/2016 - Published: 12/14/2014 - Twilight Sparkle, Fluttershy, GLaDOS, Wheatley
PorTale by IgnisWings reviews
The monsters of the underground live peacefully, before a human salt mine, some abandoned labs, and a murderous computer are discovered. The characters shall test their way out of the abandoned labs. Rated K , due to Portal's rating.
Crossover - Portal & Undertale - Rated: K+ - English - Sci-Fi/Angst - Chapters: 8 - Words: 5,299 - Reviews: 15 - Favs: 24 - Follows: 41 - Updated: 6/21/2016 - Published: 1/29/2016 - Cave Johnson, GLaDOS, OC, Papyrus
Weatley and Space Cores UnBEARable Adventure by thenewjimmyj reviews
When Space Core accidentally bumps into Wheatley he sends themselves back to earth to the humid san fransisco. I will tell more in the story.
Crossover - Portal & We Bare Bears - Rated: K+ - English - Humor/Adventure - Chapters: 5 - Words: 1,283 - Reviews: 4 - Favs: 1 - Follows: 2 - Updated: 6/14/2016 - Published: 11/13/2015
Everybody Wants You Gone by Citrus Sinensis reviews
Just a silly Songfic that popped into my head at an outrageously late hour, just Harry singing GLaDOS'song from Portal 2 before killing Voldy in DH. Yes the title sucks, no I dont care. I don't own HP, Portal, a PC, or Sweden. Reviews and co. very much appreciated. Enjoy!
Crossover - Harry Potter & Portal - Rated: K+ - English - Humor/Poetry - Chapters: 1 - Words: 560 - Reviews: 3 - Favs: 14 - Follows: 8 - Published: 6/11/2016
Compy: Keeper Of Memory by Floof The Fabulous reviews
Fouth installment in the "Compy" series. Compy, formerly known as GLaDOS, and Lucca Ashtear plunge headlong into a conflict with the Combine in an effort to retrieve the Frozen Flame. But the greatest obstacles they face will be from within. Can they surmount their own fears in time to prevent a multidimensional disaster?
Crossover - Chrono Trigger & Portal - Rated: K+ - English - Romance/Sci-Fi - Chapters: 4 - Words: 5,084 - Reviews: 4 - Updated: 6/5/2016 - Published: 11/26/2015
Do Not Submerge the Device by kitkins13 reviews
The portal device breaks, and opens a portal to the Dead Space universe. Portal 2/Dead Space 1, probably not very canon compliant. I have no idea where this is going, but hey, join me for the mystery. (fyi, there won't be any romantic links here since I'm useless at writing that stuff.)
Crossover - Portal & Dead Space - Rated: T - English - Sci-Fi - Chapters: 2 - Words: 4,179 - Reviews: 3 - Favs: 6 - Follows: 8 - Updated: 4/29/2016 - Published: 11/1/2015
The Subject's Gauntlet by TheEccentricScientist reviews
In the years that followed the fall of the British Government, there was much speculation on the events surrounding it- both on the so-called "Mandrake Phenomenon" and the successful journey through Ptolemy's Gate supposedly made by Ms Kitty Jones. However, in making the leap from theory to experimentation, Aperture Science may have got more than they bargained for.
Crossover - Portal & Bartimaeus Trilogy - Rated: T - English - Sci-Fi/Adventure - Chapters: 3 - Words: 5,072 - Reviews: 1 - Favs: 1 - Updated: 4/9/2016 - Published: 2/17/2016 - Chell, Wheatley
VOiCE of GLaDOS by The Black Maiden reviews
We are artists that sing, dance; we pose for the masses and what do we leave for ourselves? I used to look down on such creatures, but I was one of them once. And I'm one of them now.
Crossover - Portal & Vocaloid - Rated: T - English - Romance/Sci-Fi - Chapters: 2 - Words: 3,693 - Reviews: 25 - Favs: 14 - Follows: 34 - Updated: 4/3/2016 - Published: 6/23/2011 - [GLaDOS, OC] Chell, Miku H.
City Furry 34 by CRFF reviews
(Its crossover around Zootopia with Portal, Half Life and likely later BioShock series with some Fallout elements) Humans, Combine, Xen, Splicers are invading and some mutating desecents of modren day Lionheart, Bellweather, Hopps and Wilde. (And beware its still incomplete so please wait for next two or three more seperate chapters are coming your away)
Crossover - Portal & Zootopia - Rated: T - English - Sci-Fi/Fantasy - Chapters: 1 - Words: 270 - Reviews: 2 - Favs: 5 - Follows: 5 - Published: 3/25/2016 - Cave Johnson, L. Lionheart, D. Bellwether, OC
Death Battle SEASON FINALE: GLaDOS vs Mother Brain by adamsebastian99 reviews
Portal vs Metroid Season Finale! Will GLaDOS show Mother Brain some test? Or will Mother Brain close GLaDOS portal of opportunity?
Crossover - Metroid & Portal - Rated: T - English - Humor/Adventure - Chapters: 1 - Words: 3,116 - Reviews: 3 - Favs: 1 - Published: 3/22/2016 - Complete
A Hunter being hunted by Fandom Enthusiest reviews
Chell: a brave, strong, and smart woman who loves hunting out the paranormal with her journal and her best friend. Wheatley: a worrisome, naive, good hearted man who is terrified of the paranormal. When Chell is no longer herself, only the wrong person is there with no one else. (Rated T for a slightly descriptive death and some language. Chelley in the end in a bit of twisted way)
Crossover - Portal & Gravity Falls - Rated: T - English - Angst/Supernatural - Chapters: 1 - Words: 1,194 - Reviews: 2 - Favs: 1 - Published: 3/20/2016 - Chell, Wheatley, Bill
The Gravelpit Testing Initiative by PixyStickxy 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 battle. Review!
Crossover - Portal & Team Fortress 2 - Rated: T - English - Humor/Friendship - Chapters: 7 - Words: 6,858 - Reviews: 10 - Favs: 18 - Follows: 15 - Updated: 3/17/2016 - Published: 4/2/2015 - ATLAS, P-body
Mind of the Monster by ThePro-LifeCatholic reviews
Beneath a field of golden wheat, a kingdom thrives in undisturbed peace. Its Queen watches all, Her glorious reign finally free of petty revolutions. But when the facility is invaded, mysterious anomalies intersect and come into conflict. Still, despite what these monsters try to hide, there is nothing that cannot be explained eventually. In the end, it must come down to Science.
Crossover - Doctor Who & Portal - Rated: T - English - Suspense/Adventure - Chapters: 1 - Words: 5,316 - Reviews: 1 - Favs: 7 - Follows: 8 - Published: 2/28/2016
Omega Flowey's Goodbye (one-shot) by IgnisWings reviews
A one-shot recreating the ending of Portal 2 with Undertale characters. Spoilers beware.
Crossover - Portal & Undertale - Rated: K - English - Friendship/Tragedy - Chapters: 1 - Words: 229 - Reviews: 2 - Favs: 4 - Follows: 2 - Published: 2/18/2016 - Frisk, Flowey - Complete
Carly Frankenstein by 28-characters-later
After losing his daughter during a test, Greg isn't ready to actually lose her. I know that Frankenstein is the man, and Carly in here is the monster, but this title just sounded better than Greg Frankenstein.
Crossover - Frankenstein & Portal - Rated: T - English - Sci-Fi/Horror - Chapters: 1 - Words: 2,131 - Favs: 1 - Published: 2/16/2016 - Complete
What Could Be by FPSCanarussia reviews
A short crossover between Portal and AtLA. Nothing Canon-breaking, just a little plot bunny I had. What if Aperture was suddenly transported to Ba Sing Se? What would change? Not much, apparently. Also, the Announcer annoys everyone.
Crossover - Avatar: Last Airbender & Portal - Rated: K+ - English - Humor - Chapters: 1 - Words: 1,655 - Reviews: 3 - Favs: 12 - Follows: 10 - Published: 2/6/2016 - Complete
Portal Secret Santa 2015 by Blueotterkitty reviews
The Crystal Gems encounter a certain Aperture Science personality construct. (Written for drawinggalaxy for Portal Secret Santa 2015.)
Crossover - Portal & Steven Universe - Rated: K - English - Humor/Friendship - Chapters: 1 - Words: 2,342 - Reviews: 6 - Favs: 9 - Follows: 7 - Published: 1/28/2016 - Space Core, Pearl, Steven U., Peridot - Complete
The Long Road Ahead, and the Parts Behind Me by PixyStickxy
Not really an official story, just a selection of ficlets (if you can even call them that) from the last 2 years set both in both the Pokémon and Portal worlds. Or maybe they're the same. Or maybe not.
Crossover - Pokémon & Portal - Rated: K - English - Chapters: 1 - Words: 1,025 - Favs: 1 - Published: 1/24/2016 - Complete
The Witch in Aperature by AdamGregory03 reviews
What happens when a certain sexy witch winds up in a facility with a mute woman with a portal gun, a British robot core, and a cynical main computer system operating it all? ...Pretty much the one thing you would expect to ensue: Shenanigans.
Crossover - Portal & Bayonetta - Rated: T - English - Humor/Sci-Fi - Chapters: 1 - Words: 1,088 - Reviews: 2 - Favs: 7 - Follows: 6 - Published: 1/21/2016
Tendrils by SilencedHearts reviews
Chell and Wheatley discover that something dangerous lies in the woods. Chelley with Core!Wheatley and Mute!Chell. Includes Slenderman. Rating may go up, but T for now.
Crossover - X-overs & Portal - Rated: T - English - Romance/Horror - Chapters: 1 - Words: 272 - Reviews: 1 - Follows: 1 - Published: 12/11/2015
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: 3 - Words: 1,491 - Reviews: 2 - Favs: 4 - Follows: 11 - Updated: 12/8/2015 - Published: 5/20/2015 - A. E. Stark/Tony, Chell, GLaDOS, Wheatley
Compy: Chrono Convergence by Floof The Fabulous 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: 17 - Words: 26,454 - Reviews: 9 - Updated: 11/24/2015 - Published: 4/27/2015 - Complete
Horrifying Metal (portal and fnaf crossover) by lex1013
Dem just got a assistant job with Mike at Freddy's. But on Night 5, the paradox begins. Portal is owned by Valve. FNAF is owned by Scott Cawthon. My only ideas were the OC. Originally from my blog dubbed as Skypemare.
Crossover - Portal & Five Nights at Freddy´s - Rated: K - English - Supernatural/Adventure - Chapters: 1 - Words: 1,967 - Favs: 2 - Follows: 2 - Published: 11/15/2015
Where Shall We End? by kyatonipunyaanyaa reviews
A mega crossover- Portal, Lego Movie, MLP:FiM, Hetalia, Homestuck, Marvel, and Warriors. ((Marvel was not featured in the first chapter.))
Crossover - My Little Pony & Portal - Rated: T - English - Adventure/Sci-Fi - Chapters: 2 - Words: 940 - Reviews: 3 - Favs: 2 - Follows: 3 - Updated: 11/14/2015 - Published: 11/3/2015 - Twilight Sparkle, Fluttershy, Chell, GLaDOS
Half-Life 3: The End: Lambda is for love by InOnTheJoke
Finaly a satisfiing concluesson 2 the epic storey of gOrden Freeman. No lose end. Everything warped up nicelee.
Crossover - Half-Life & Portal - Rated: K+ - English - Romance/Parody - Chapters: 1 - Words: 316 - Published: 10/26/2015
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