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TOD dr who portal by 1980-somethingspace-girl reviews
Just read.
Crossover - Doctor Who & Portal - Rated: T - English - Sci-Fi/Humor - Chapters: 4 - Words: 892 - Reviews: 2 - Favs: 1 - Follows: 1 - Updated: 1h - Published: 1/4
Compy: Chrono Convergence by GingerFloof26
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: 5 - Words: 6,455 - Updated: 2h - Published: 4/27
The Things We Do For Science by Kineil D. Wicks
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: 1 - Words: 766 - Published: 6h
Bots Among Us 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: 4 - Words: 4,074 - Reviews: 4 - Favs: 1 - Follows: 1 - Updated: 12h - Published: 4/2
Of Portals and Caves by theotherhero-of-time reviews
(Ugh, I'll come up with a better title later.) Ever wondered what happened to Quote after Cave Story ended? What if the island was above the planet, and it happened to be Earth? And what if the entrance to Aperture was open? (I'm terrible at this...)
Crossover - Cave Story & Portal - Rated: T - English - Chapters: 2 - Words: 1,164 - Reviews: 2 - Favs: 1 - Follows: 2 - Updated: 5/3 - Published: 7/31/2014
Temptation by Beth Einspanier reviews
Tony Stark finds himself advising JARVIS about his new girlfriend. JARVIS' new girlfriend, that is. Movie-verse Iron Man. Rated T for innuendo and colorful technological metaphors.
Crossover - Marvel & Portal - Rated: T - English - Friendship/Humor - Chapters: 1 - Words: 1,112 - Reviews: 2 - Favs: 1 - Published: 4/29
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
Crossover - My Little Pony & Portal - Rated: T - English - Adventure/Friendship - Chapters: 6 - Words: 2,484 - Reviews: 9 - Favs: 5 - Follows: 5 - Updated: 4/28 - Published: 4/30/2014 - Fluttershy, Rainbow Dash, Twilight Sparkle, Chell
SGA Aperture by McKay Rulez
Cave Johnson of Aperture Science becomes the new leader of Atlantis after the IOA and UN pull the SGC's funding away. (Note: Rodney McKay, Cave Johnson and Caroline are related in this crossover.)
Crossover - Stargate: Atlantis & Portal - Rated: T - English - Sci-Fi/Family - Chapters: 2 - Words: 1,633 - Published: 4/28 - Rodney M., John S., 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: 46 - Words: 334,585 - Reviews: 70 - Favs: 67 - Follows: 67 - Updated: 4/19 - Published: 2/17/2012 - Dragonborn/Dovahkiin, D. Rattmann, Wheatley, Chell
Project Memento - Storyline Z by Beta-D-glucose reviews
Sometime after the Red Alert incident, the maverick hunters receive a strange call for help, which brings them to even stranger places. The facilities of the Aperture Science holds many mystery, and deadly traps. Will they able to make it through? Let's find out! (This is the second - Zero's - parallel storyline. Check out the others as well! OC content.)
Crossover - Mega Man & Portal - Rated: T - English - Adventure/Family - Chapters: 2 - Words: 5,691 - Reviews: 1 - Favs: 1 - Follows: 1 - Updated: 4/18 - Published: 3/16 - Axl, X, Zero, GLaDOS
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: 5 - Words: 3,995 - Reviews: 1 - Favs: 1 - Follows: 1 - Updated: 4/17 - Published: 2/22 - Chell, Weighted Companion Cube, Stanley, Narrator
Portals of DOOM! by Cat Fishy reviews
After being released from Aperture, Chell has reintegrated with hyuuman society, but something is wrong. Why is everyone so stupid? Is that green kid really an alien? And did Black Mesa somehow cause the apocalypse? Meanwhile, Red and Purple wreak havoc on the universe, and Miyuki is not impressed. No pairings, mostly canon, post-Portal 2/The Trial.
Crossover - Invader Zim & Portal - Rated: T - English - Adventure/Sci-Fi - Chapters: 22 - Words: 17,579 - Reviews: 15 - Favs: 7 - Follows: 4 - Updated: 4/16 - Published: 1/13/2013 - Dib, Almighty Tallest Miyuki, Chell, GLaDOS
Project Memento - Storyline X by Beta-D-glucose reviews
Sometime after the Red Alert incident, the maverick hunters receive a strange call for help, which brings them to even stranger places, filled with many mystery. Whether they fall into a deadly trap in the facilities the Aperture Science or not... of course they do. The real question is: will they be able to escape from it? (This is one of the three parallel storylines. OC content)
Crossover - Mega Man & Portal - Rated: T - English - Adventure/Sci-Fi - Chapters: 2 - Words: 5,205 - Reviews: 2 - Favs: 1 - Follows: 1 - Updated: 4/9 - Published: 3/14 - Axl, X, Zero, GLaDOS
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: 16 - Words: 31,098 - Reviews: 20 - Favs: 12 - Follows: 22 - Updated: 4/8 - Published: 12/14/2014 - Twilight Sparkle, Fluttershy, GLaDOS, Wheatley
Portals Among the Undead by 123123sora reviews
The survivors have escaped from the bridge from "The Parish" and travel to Michigan in the helicopter. A tank throws a chunk of land at the helicopter, landing them in the middle of a wheat field. Then, a dark brown haired woman emerges from a shack in the wheat field. (may add L4D1 survivors at a later point.)
Crossover - Portal & Left 4 Dead - Rated: T - English - Supernatural/Friendship - Chapters: 4 - Words: 4,682 - Reviews: 6 - Favs: 3 - Follows: 4 - Updated: 3/31 - Published: 3/6/2014 - Chell, Ellis, Rochelle, Coach
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: 1 - Words: 5,077 - Reviews: 6 - Favs: 8 - Follows: 7 - Published: 3/27 - Chell, GLaDOS, Wheatley
Grief Science by CornetHummy reviews
"You can have whatever you want if you just wish for it." It's a tempting proposition, but it comes with consequences. Chell knows them well, but she may be the last hope of a divergent timeline. Portal/Madoka fusion AU. Humanized cores and GLaDOS, for a given measure of "human." Spoilers for Madoka Magica.
Crossover - Portal & Puella Magi Madoka Magica/魔法少女まどか★マギカ - Rated: T - English - Supernatural/Drama - Chapters: 26 - Words: 170,013 - Reviews: 21 - Favs: 19 - Follows: 10 - Updated: 3/24 - Published: 11/16/2013 - Chell, GLaDOS, Wheatley, Kyubey - Complete
Project Memento - Storyline A by Beta-D-glucose
Sometime after the Red Alert incident, the maverick hunters receive a strange call for help, which brings them to even stranger places. The facilities of the Aperture Science holds many mystery, and deadly traps. Will they able to pull it off, and stay alive? (This is the third - Axl's - parallel storyline. Check out the other two as well! OC content.)
Crossover - Mega Man & Portal - Rated: T - English - Adventure/Humor - Chapters: 1 - Words: 2,166 - Favs: 1 - Follows: 1 - Published: 3/24 - Axl, X, Zero, Wheatley
Aperture technology in Forks by Astraga
Some time after Chell left Glados made an android of a metal from space that Cave Johnson bought, that android disguised as Chell go to Forks to explore the surface and find the Cullen's what will she do? and when a menace appears will the Cullen's enter the strange world of aperture?
Crossover - Twilight & Portal - Rated: K+ - English - Romance/Adventure - Chapters: 2 - Words: 1,719 - Favs: 1 - Follows: 2 - Published: 3/22
The Past Retold by Phoenixflame of Thunderclan
WX-78 has been in charge of Old Aperture for two years. Two people come by, and ask him what had happened during, before, and shortly after the events of Portal 2. Takes place about 12 years after Portal 2. There is no fluff scenes, but CarolineXCave. Rated K only for retold death.
Crossover - Portal & Don't Starve - Rated: K+ - English - Chapters: 1 - Words: 2,208 - Published: 3/20
Mann to the Core by yodapopper reviews
Wheatley does a bit of a rough landing in 2Fort, providing some much-needed change in an eternal war between brothers. But can Wheatley -and the mercenaries- adapt to the changes, or will things take a turn for the worse? No humanisations. (The TF2-verse is AU in one vital aspect: Gray Mann never happened, which means that all connected events (such as MvM) haven't occured either)
Crossover - Portal & Team Fortress 2 - Rated: T - English - Adventure/Friendship - Chapters: 13 - Words: 30,685 - Reviews: 30 - Favs: 15 - Follows: 22 - Updated: 3/19 - Published: 6/4/2014 - Wheatley, Engineer
AvengersAperture Series 4: Holidays with the Odinsons by GingerFloof26
Loki and Thor invite all their friends- and some rivals- to Asgard for the holidays, in order to prove that Loki has turned a new leaf. GLaDOS accepts the invitation in order to prove the same, but has she really done so? Perceived betrayal may lead to closer bonds, as the two discover. This time, rated T with censored sex scenes and edited language.
Crossover - Portal & Avengers - Rated: T - English - Adventure/Humor - Chapters: 4 - Words: 15,901 - Published: 3/18
Compy: Initializing Connection by GingerFloof26
Prequel to the Portal fanfic "Compy." The brilliant scientist Lucca Ashtear makes a discovery that could alter the fate of dimensions- including the world of Portal. But when she is faced with an ultimatum, she decides to give up what she loves most to GLaDOS, and the ramifications change the A.I's life forever.
Crossover - Chrono Trigger & Portal - Rated: T - English - Sci-Fi/Romance - Chapters: 11 - Words: 18,772 - Published: 3/18 - Complete
Samus' Trial with Portals by Ancient Dragon writer reviews
Samus is found guilty of destroying the BSL station and is sentenced to five years imprisonment to the Aperture Science Enrichment Center. GLaDOS is thrilled about the new test subject arriving due to boredom. Will Samus survive these tests? Will GLaDOS kill her before anything begins? Or will Samus and GLaDOS end up getting along? GLaDOS: Who knows read the story and find out.
Crossover - Metroid & Portal - Rated: T - English - Sci-Fi - Chapters: 2 - Words: 936 - Reviews: 1 - Favs: 3 - Follows: 5 - Updated: 3/15 - Published: 8/11/2014
The Doctor and Wheatley by BasementDragon101 reviews
Wheatley has been in space forever. Everyday has been the same. Until one day when a blue box appears. Wheatley travels with a strange man known as the Doctor, and they go to Earth to say sorry to Chel. But then, they learn more than what they wanted about Aperture.
Crossover - Doctor Who & Portal - Rated: K+ - English - Humor/Sci-Fi - Chapters: 1 - Words: 560 - Reviews: 2 - Favs: 1 - Follows: 1 - Published: 3/10
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