Portal: Prelude, as its name implies, is an unofficial prequel to the game Portal. Its story revolves around the pre-GlaDOS epoch way before she was plugged in. Back then, test subjects were still monitored by real Aperture Science employees, a tedious, dull, and repetitive job. One of the reasons why they decided to build a great artificial intelligence that could both replace them for these complex tasks and also take responsibility for many other functions within the complex while competing with Black Mesa's superiority. All employees of the Aperture Science complex are now eagerly awaiting GlaDOS. A little too eagerly maybe, as the unfolding events will tell... This game is totally free. It offers a bit more gameplay hours than the original Portal, with 8 chapters, 19 test chambers, 48 challenges, 6 advanced maps, a brand new storyline and more than 400 lines of English dialogue with dozens of subtitles languages.

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Portal Prelude
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Frehelias
Frehelias - - 56 comments

I see something.
But eh why is it upside down?

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DeadPhaker
DeadPhaker - - 148 comments

IZ GMAAAAN!

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DoctorShark666
DoctorShark666 - - 13 comments

because he's thinking with portals duh

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Wheatley!
Wheatley! - - 8 comments

its g-man from halflife2 portal uses the half-life engine but portal 2 dosent, portal 2 is its own game you can only do impulse 101 in portal because its the half-life engine. you cant in portal 2 because it is its own game

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Killeronthelose3
Killeronthelose3 - - 1 comments

why is gman in the game i thought he was only in half-life 2

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The_Mastodon
The_Mastodon - - 4,279 comments

Isn't it obvious that Portal is the same universe as Half-Life?

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narvikboy
narvikboy - - 2 comments

he was the owner of Black Mesa in half life 2 and apeture siencs trying to be better then Black mesa so maybe he is there to make the (big robot you destroy in portal evil:P

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Wheatley!
Wheatley! - - 8 comments

you mean glados? he isnt making glados, gman is there to eat you

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Alphys-The-Medic
Alphys-The-Medic - - 9 comments

no no no no no no gamn all dead...................THAT YOU! AHHHHHHHHHHHHHHHHHHHHHHHH* X_X

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king_jessum
king_jessum - - 167 comments

g-man väärinpäin???!!

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support1358549406
support1358549406 - - 90 comments

It's called reusing NPCs.

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