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 Mendozacheers says
9 Mendozacheers

Mar 17th, 2011 2 people agree 1 person doesn't

A bit lame voice acting, but a lot of hard puzzles, makes the original Portal look like childs play. A good story as well

Pur3Bolt says
9 Pur3Bolt

Feb 28th, 2011 2 people agree 1 person doesn't

Really good mod!

Louisadin96 says
9 Louisadin96

Jan 18th, 2011 2 people agree 1 person doesn't
This review may contain spoilers

Probably the best portal mod I've ever played, it has all new characters, new enviornments, new tools, and an amazing story that is worthy of being part of the official half life/portal universe. The only downside is voice acting, but that is only because the creators were french, and the game wasn't originally made in english, so their voice options were quite limited. Well, at lease its a british microsoft sam...

jamistara says
9 jamistara

Aug 11th, 2014 0 people agree 0 people don't
This review may contain spoilers

I was thinking about giving this 8.5, but I realized that this mod
deserves, 9. It was well made, enjoyable and great unofficial prequel.
Altought I didn't kind of... Enjoy the voice acting.

It was cool to see beginning of GLaDOS's life, and how she
took over the facility.

Seiji_Kung says
9 Seiji_Kung

Jun 13th, 2014 0 people agree 0 people don't

Good mod.

quillsaga says
9 quillsaga

Apr 27th, 2013 0 people agree 0 people don't

Had a lot of fun playing it

Michcioperz says
9 Michcioperz

Jan 13th, 2013 0 people agree 0 people don't

A little hard. Maybe a little too hard. But the plot deserves 9/10.

thefrixx says
9 thefrixx

Dec 16th, 2012 0 people agree 0 people don't

Verry good game. A lot challenging. Exellent.

Grim115 says
9 Grim115

Aug 1st, 2012 0 people agree 0 people don't

great mod

Theevina says
9 Theevina

Jul 19th, 2012 0 people agree 0 people don't

This is a very interesting mod with a satisfying story for the events preceding Portal. I agree the voice acting wasn't the best and most of the test chambers were ridiculously difficult and not very rewarding. It took me half a year to find the strength to finish this mod. But the ending was nice, creative, unique, and fitting.

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8.7

680 votes submitted.

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