After getting control back of Aperture from the moron Wheatley GLaDOS has allowed him back along with Chell. Of course that just means more testing with portals. And then there was something called stargates and that just blew up in their faces.

After the war ends, Scout finds himself signing up for the Aperture Science training program. It was a reckless decision, and now Scout is paying the price. Now it's just survival until he reaches the las test, gets the cake, and goes home.

Why did the Aperture kid get the catchy song? K because Zat has a dirty mouth.

A two-part crossover between Portal and Lilo and Stitch. Please no flaming, only constructive criticism! T for now, may change later!

Sebastian and Ciel had woken up in a strange room. They entered a portal and came out of this room to find themselves in a lab. The Aperture labs. As they go, Sebastian believes they must go farther in to escape this facility.

Two Caves in a Story that isn't Cave Story but has Cave from Cave Story and Also Cave From Portal Two #Number#

A story about how Orange goes from being a happy, normal robot to something much darker. Involves BluexOrange and Human!WCCxOC. Takes place in the Hard Rain campaign of Left 4 Dead 2

In which Gordon is unreadable, Alyx makes a disastrous choice, the Beatles are timeless, and Aperture Science goes characteristically too far. Rated T for violence.

Alyx and Gordon are still searching for the Borealis, but this time, G-Man take them to the future. GLaDOS wants her revenge, so she brings a moron back. Now, the Freeman must work with the lady in orange to find what he's looking for. suck at summaries!

Having left Cybertron in a seemingly endless quest for new sources of energon, The Autobots come across some interesting characters in the void of space.

What if Phineas was captured by GLaDOS and taken in as a test subject. Find out! Mainly contains Phineas

GIR somehow ends up in Aperture Labortories and insanity insues. ONESHOT!

"Welcome to the Aperture Science Human Enhancement and DNA Exchange testing unit". This is an alternate Portal 2. This time, it's Chell AND her fun-loving pack of genetically altered mutants who have escape on their mind.

Chell is somehow transported into the Pokemon world. But so were the AIs; GLaDOS, Wheatley, etc. ... And while Chell's human, they're Pokemon! Loosely follows story of Pokemon Emerald. THE FOURTH WALL WILL BE BROKEN. :D ON TEMPORARY HIATUS

Exactly what it says on the tin. Caution: Here there be Randomness In a Box characters! No script format, though.

Universes collide when multiple lifts crash at the same time.The Question how do the heros an villians get home?and how will this madness affect one big Fan?

A crossover between Portal and the dreadful movie Apollo 18 starring Richard Nixon and Cave Johnson as they fight to save the world from moon spiders. Yes, you read that right.

Cyra and Cody must save GLaDOS from death! not very good... dont read...

Chell's adventures continue and she finds herself in the middle of a war between two rival companies. A fanfic that runs on valve time.

When Slowbeef and Diabetus get a hold of Spongebob's Portal 2 Let's Play, will the lowly frycook be able to cope with online criticism? Great if you love retsupurae fanfiction!

GlaDOS had a revelation with Chell, but there is a possibility she might just revert back... And when you throw a boy genius, and an elf with a quick trigger finger into the mix, things go haywire. And maybe a moron returns. Rated M for Safety.

Just a short Horror/tragedy for Halloween. Basically following a Hunter on Halloween. Sorry for shortness. Warning: Character death

After Chell left, GLaDOS took up a hobby: reanimating the dead.

When GLaDOS almost kills herself by accident, she has swap herself with another AI and the closest one to her is in another universe.

This is a Half-Life fanfiction, in case you were confused. I've also translated it from Peter Chimaera's amazing writing style to a language we mere mortals can understand.