Portal: Prelude, as its name states it, is an unofficial prequel to the game Portal. Its story revolves around the pre-GlaDOS epoch, even before she was plugged in. At this time, test subjects were monitored by real Aperture Science employees, whose work was tedious, lengthy and repetitive. This is why they decided to build a great artificial intelligence that could both replace them in these difficult tasks, and also take responsibility for many other tasks within the complex and compete with Black Mesa's superiority. All employees of the Aperture Science complex are now eagerly awaiting GlaDOS. Maybe even a little too eagerly, as the upcoming 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 speech with dozens of subtitles translations.

Review RSS Feed Joxford says
9 Joxford

Jan 30th, 2012 0 people agree 0 people don't

Beautifully well done, shows the times before GLaDOS came into power.

disulfiram says
7 disulfiram

Oct 24th, 2011 0 people agree 0 people don't

The mod is good but not my style. The tasks are difficult to perform but not to come up with. Still I recommend it to people I know like this kind of stuff

ab2531 says
9 ab2531

Oct 22nd, 2011 0 people agree 1 person doesn't
This review may contain spoilers

This mod is very impressive. The voice acting is performed by a machine but it is ok. And scenario is quite good. The music used matches the ambiance of Portal and it is nice to see some humans in Portal.

However, this mod is really really HARD! It took me 3 days to finish it while the original Portal was finished in less than 1 day for me.

Spoiler Alert:
There are 19 test-chambers with gradual difficulty and you will have to use some skill that weren't needed in the original game like crouching while teleporting to jump further. I don't know how you can expain that there is more turret in the complex and why GlaDOS is much more powerful in the Prelude than the original game. It makes the mod very challenging. I don't know how many time I died before beating GlaDOS with these buzz-robots from Half-Life 2 following you everywhere. (You don't even have a crowbar to defend yourself). Anyway, It was fun.

Congratulation and thank you for this great mod.

benvlodgi says
10 benvlodgi

Oct 17th, 2011 1 person agrees 1 person doesn't

Very well made, great story too, sticks the the cannon pretty well as-well :)

Gabo48 says
10 Gabo48

Oct 16th, 2011 1 person agrees 1 person doesn't

gran mod muy trabajado

king_jessum says
10 king_jessum

Oct 9th, 2011 1 person agrees 1 person doesn't

That is really awensome

seanownsatlife says
10 seanownsatlife

Sep 22nd, 2011 1 person agrees 1 person doesn't

Wow this game is a amazing great story!

willy204wu03 says
9 willy204wu03

Sep 17th, 2011 0 people agree 1 person doesn't

Everything were designd nicely but the voice of characters.

DStroy98 says
7 DStroy98

Sep 17th, 2011 0 people agree 1 person doesn't

Ultra hard.
real mindbender at times and at others its just frustrating.

Peshka_kaV says
10 Peshka_kaV

Aug 21st, 2011 1 person agrees 1 person doesn't

Cool game

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