Aperture had always been known as a place of science. Yet, there was a place where no one except for the founder knew of that contained something else. Years later, a lost test subject and her potato companion stumble across what seems like a lost gallery, but what lies within is a place of beauty and horror neither could possibly imagine.

While venturing into the Everfree Forest at night to investigate a strange light, Twilight finds herself trapped in the midst of dilapidated ruins in a long-forgotten testing facility. Enlisting the help of both old and new friends along with some strange... constructs; she must escape… or die trying. Human in Equestria. Please read and review.

In a desperate attempt to escape being punished by GLaDOS, Wheatley begs for a job, but the job he gets isn't exactly what he was expecting. Now he must survive an unknown number of nights at a part of Aperture that has, for many years, lied dormant. But its inhabitants have been waiting...

Harry Potter finds himself in aperture science after a bought of accidental magic. GlaDOS takes him in, seeing him as being cruelly mistreated, far more so than anything she would ever do, and he becomes a scientist. Later, a unicorn named Dinky Doo shows up, and the two develop science magic. With turrets, portals, and corrupt cores, Hogwarts won't know what hit it. HP/P/MLP

When she heard of the legacy of the murder, she wanted to surpass it, no matter what. Draca was close to this goal when GLaDOS got in her way with a new device. Now Draca must learn to cope with her new body, altered thoughts, and new power while fighting for her goal. All the while, an ancient evil awaits its chance to strike. Includes Caroline and Doug as well. R&R

when a teleportation experiment goes wrong and pokemon get loose in aperture, what will our heroes do to stop them? P.S. possible portal 3 beginning!

With Aperture Science Innovators, Chell thought she knew what to expect from her time as a Test Subject. For five years, it was nothing but routine, and testing. But when she's waken from Deep Freeze for what she thought would be more of the same, she's greeted with a much different, much more bizarre, and much more dangerous Rapture than the one she once called home.

When Celestia meets GLaDOS, she decides to get payback... By raping her.

Alfred has a companion cube and these are the stories of the two

The Doctor and Amelia Pond. Best of friends who travel in time and space in the most dangerous of situations, though none that quite reach the severity of this. Paralell universes, murderous robots and sassy cores. What could possibly go wrong?

She fought and struggled until she'd gotten out and she's made it through. She even got people that she could call friends, friends that need her to fight with them. It seems manageable because now, she isn't alone. That also makes it much harder. T to be safe and some language

Starring Chell and GlaDOS from Valve's "Portal," Commander Jane Shepard from EA's "Mass Effect" trilogy, Courier Six from Obsidian's "Fallout: New Vegas," Cortana from Bungie and 343 Industries' "Halo" series, and Clementine from TellTale's "The Walking Dead".

GLaDOS decides to enlist the help of a nation called Panem in testing

Set in a town in a desert, or a desert in a town no one is really sure. Where the company picnic is getting out of hand someone makes a call. THE TESTING WILL BEGIN IN 3 2 1

An AU fic where Chell, GLaDOS, Wheatley, Space, Adventure, and Fact end up joining Arthur and Ford on a journey through the galaxy. I'm no Douglas Adams, but I did my best. If you haven't read Hitchhiker's Guide to the Galaxy, READ IT! I swear, it's totally amazing! Rated for mild sexual situations and language.

The host club got kidnapped by Aperture Labs and it's up to Haruhi to save them, with the help of the (mostly) useless cores that her friends were downloaded into! Will she save her friends before it's too late? What does Glad0s want? Will Kyoya ever be able to do the club's finances? Probably not, but find out in this (very weird) story! (Hiatus)

Well portal and half-life happened, then what? Will we ever see Wheatley? What happens to Chell? Will Eli have grandchildren? WRITING MORE LATER (rated M for future smut and violence)

Crossover one-shot. Madagascar and Portal. Based on The Penguins of Madagascar (2014) North Wind Headquarters clip. Written with Master of Quantum Mechanics. Disclaimer: We don't own Portal or Madagascar, this is fan fiction.

Two monkeys named Specter and White meet Glados and are sent on a mission. A mission that could put their lives at stake.

It's not that She was desperate. Desperation came from poor progress, and poor progress came from Bad Science. No, She was not desperate. She was just taking advantage of Her resources. The key to a good test was variety, of which lunatics, while dangerous, provided the best of. Unfortunately She lost track of Her lunatic. Ah, well, at least She now had these brand-new ones.

Same old story, but with a brand-new human or two thrown into the mix!

An Aperture Science research assistant manages to wind up in Equestria. Shenanigans ensue.

*adopted "The Problems cause by Control Freak" by makerboy13* What happens when Raven gets sucked into the game Portal 2 due to Control Freak being... well, a freak? Let's find out then, shall we? First chapter is not my work, everything else is. Will not be updated as often as "Henry's Story."

This story is on permanent hiatus due to me no longer writing fanfiction. I am handing this story over to another user, Cortexin, but it will be a while before that happens. It will be titled "Raven in Aperture," and will be a re-do of the story thus far. Sorry. Also, I will leave this up so everyone can go to that story.

A mysterious test subject known as No. 168 is dumped into a synthetic Republic City for some rather frightening testing.