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The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!
Release Date: Apr 18, 2011
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Includes two copies of Portal 2 - Send the extra copy to a friend.

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Includes 2 items: Portal, Portal 2

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Buy Portal 2 - The Final Hours

Portal 2 - The Final Hours is a digital book that takes you deep within the top-secret offices of Valve for an unvarnished look at the creative process behind Portal 2. Now with a free bonus chapter added!

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Steam Big Picture

Perpetual Testing Initiative




The "Perpetual Testing Initiative" has just been expanded to allow users to design co-op puzzles in Portal 2! This update also introduces a “Quick Play” feature, giving you quick access to the top-rated maps in various categories.

About the Game

Portal 2 draws from the award-winning formula of innovative gameplay, story, and music that earned the original Portal over 70 industry accolades and created a cult following.

The single-player portion of Portal 2 introduces a cast of dynamic new characters, a host of fresh puzzle elements, and a much larger set of devious test chambers. Players will explore never-before-seen areas of the Aperture Science Labs and be reunited with GLaDOS, the occasionally murderous computer companion who guided them through the original game.

The game’s two-player cooperative mode features its own entirely separate campaign with a unique story, test chambers, and two new player characters. This new mode forces players to reconsider everything they thought they knew about portals. Success will require them to not just act cooperatively, but to think cooperatively.

Product Features
  • Extensive single player: Featuring next generation gameplay and a wildly-engrossing story.
  • Complete two-person co-op: Multiplayer game featuring its own dedicated story, characters, and gameplay.
  • Advanced physics: Allows for the creation of a whole new range of interesting challenges, producing a much larger but not harder game.
  • Original music.
  • Massive sequel: The original Portal was named 2007's Game of the Year by over 30 publications worldwide.
  • Editing Tools: Portal 2 editing tools will be included.

PC System Requirements

    • OS: Windows 7 / Vista / XP
    • Processor: 3.0 GHz P4, Dual Core 2.0 (or higher) or AMD64X2 (or higher)
    • Memory: 1GB XP / 2GB Vista
    • Hard Disk Space: At least 7.6 GB of Space
    • Video: Video card must be 128 MB or more and should be a DirectX 9-compatible with support for Pixel Shader 2.0b (ATI Radeon X800 or higher / NVIDIA GeForce 7600 or higher / Intel HD Graphics 2000 or higher).
    • Audio: DirectX 9.0c compatible

Mac System Requirements

    • OS: MAC OS X 10.6.7 or higher
    • Processor: Intel Core Duo Processor (2GHz or better)
    • Memory: 2GB
    • Hard Disk Space: At least 7.6 GB of Space
    • Video: ATI Radeon 2400 or higher / NVIDIA 8600M or higher / Intel HD Graphics 3000
Helpful customer reviews
1,122 of 1,190 people (94%) found this review helpful
368 products in account
5 reviews
55.2 hrs on record
The best game ever made by Valve. Great story, beautiful dialogues with funny jokes, interesting puzzles, perfect atmosphere and a lot of fun in co-op with friends. You made a great work, Valve, and thank You for this absolute masterpiece.
10/10.
Posted: November 26th, 2013
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406 of 442 people (92%) found this review helpful
152 products in account
10 reviews
5.8 hrs on record
One of the most brilliant games ever made. The gameplay, humor, characters, and wittiness are astonishing. The co-op was some of the most fun I ever had. Do yourself a favor and get this AND the first Portal if you haven't already.
Posted: November 25th, 2013
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259 of 290 people (89%) found this review helpful
446 products in account
103 reviews
13.2 hrs on record
Portal is back and better than ever! The tests are as mind bending as ever, and they've added new elements, like light bridges and emancipation gates. The graphics are smooth and attractive, but nothing that's going to make your jaw drop. The controls are as simple and effective as the first game. But then, none of that was what worried me. I had no doubt that they would be able to recreate and expand upon the technical aspects of the first game.

My concern was whether or not they would manage to capture and continue the personality and sense of humor of the first game. I am very pleased to report that the sequel does not disappoint. The sequel pics up right where the first game left off, and GLaDOS holds a grudge. Her insults, passive aggressive comments, and general malice will have you chuckling throughout the game. Your new companion and guide robot also adds to the character of the game, though he can be a bit heavy handed at times.

If you enjoyed the first game, you will love the sequel, both for its expanded challenges, and its unique personality. As long as you enjoy a good puzzle and have a sense of humor, you will never regret this purchase.
Posted: December 2nd, 2013
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247 of 290 people (85%) found this review helpful
1,125 products in account
63 reviews
26.6 hrs on record
Personal Rating: "Classic - Must buy"
Traditional Rating: 9.5/10
Platform: PC
Genre: First Person Puzzle Adventure

While the first Portal was a simple yet totally addictive and wildly funny concept game released as part of the Orange Box, Valve knew it had a winner on its hands. When the Orange Box released most of the talk centered around Portal and it immediately became the favorite of the entire compilation for many and went on to win many Game of the Year awards in 2007.

With the accolades rolling in yet again there was never any doubt that Valve would not produce a sequel but that it would produce a sequel that could never match the brilliance of the original game. Somehow, in some strange alternate dimension to the rest of the game development world, not only did Valve deliver the sequel but they enhanced the concept in every single way (much like Valve did with Half-Life 2 that many thought could not possibly match the brilliance of the original Half-Life)

Portal 2 rightfully won stacks of Game of the Year accolades in 2011 including the BAFTA for Best Game. No mean feat by any standards except for the good folk at Valve. Once again the mute Chell returns with the evil super computer GlaDOS and her cynical jibes that illicit more than just belly-laughs this time around as she continues to push Chell through increasingly more difficult tests that seem alarmingly designed to kill and mame.

Chell has some help this time around in the form of another Robot named Wheatley - brilliantly voiced by Stephen Merchant with absolute perfect comedic timing. Once again the stage is set for yet another showdown...or is it? With a script that is as sharp as a tack and containing a level of comedy often associated with a Pixar film, Portal 2 more than rises to the challenge. Once again the puzzles or tests included start off deceptively easy before reaching a level of head-scratching confoundment towards the end. There is enough content here to give the old grey matter a good workout.

However, its not in the single player that the game really shines as one would have expected (although it is brilliantly good) - the real meat of the package and the reason everyone should own this title is simply for its amazing co-op. This is without a doubt the most ingenious and side-splittingly funny co-op implementations yet and still remains to be beaten. Giving each player a robot with portal guns of their own both players must help the other navigate the various test chambers GlaDOS has assembled. Working your way towards a solution often results in hilarious mishaps with incredibly funny running commentary from GlaDOS. Its an absolute winner! With added Steam Workshop support you have a title that could live on and on forever since apparently Valve are very adverse to the number 3 in numerics.

While many doubted a full game could be fleshed out of the original Portal concept not only did Valve deliver on that promise it also delivered one of the finest games of this generation. If you haven't played this yet...what on earth are you possibly waiting for!
Posted: November 26th, 2013
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144 of 168 people (86%) found this review helpful
57 products in account
11 reviews
24.1 hrs on record
Perfect game: dialogs, plot, logic puzzles - everything at highest level
Posted: November 26th, 2013
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