The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!
User reviews: Overwhelmingly Positive (33,633 reviews)
Release Date: Apr 18, 2011

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Downloadable Content For This Game

 

Recommended By Curators

"A challenging, hilarious, and mind-expanding puzzle experience for one or two—treasure your first time through."
Read the full review here.

Recent updates View all (26)

June 17

Portal 2 Update Released

We have updated the public release of Portal 2. This update contains all the changes from the recent beta. We would like to thank the community for the testing and suggestions that have been provided.

Changes:

  • Linux / SteamOS beta is now available
  • Steam controller support beta
  • Some translation updates
  • Fixed bugs with triple-monitor displays
  • Some other bug fixes

216 comments Read more

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 This 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.

System Requirements

PC
Mac
Linux
    Minimum:
    • OS: Windows 7 / Vista / XP
    • Processor: 3.0 GHz P4, Dual Core 2.0 (or higher) or AMD64X2 (or higher)
    • Memory: 2 GB RAM
    • Graphics: Video card must be 128 MB or more and with support for Pixel Shader 2.0b (ATI Radeon X800 or higher / NVIDIA GeForce 7600 or higher / Intel HD Graphics 2000 or higher).
    • DirectX: Version 9.0c
    • Hard Drive: 8 GB available space
    • Sound Card: DirectX 9.0c compatible
    Minimum:
    • OS: MAC OS X 10.6.7 or higher
    • Processor: Intel Core Duo Processor (2GHz or better)
    • Memory: 2 GB RAM
    • Graphics: ATI Radeon 2400 or higher / NVIDIA 8600M or higher / Intel HD Graphics 3000
    • Hard Drive: 8 GB available space
    Minimum:
    • OS: Ubuntu 12.04
    • Processor: Dual core from Intel or AMD at 2.8 GHz
    • Memory: 2 GB RAM
    • Graphics: nVidia GeForce 8600/9600GT, ATI/AMD Radeon HD2600/3600 (Graphic Drivers: nVidia 310, AMD 12.11), OpenGL 2.1
    • Hard Drive: 8 GB available space
    • Sound Card: OpenAL Compatible Sound Card
Helpful customer reviews
339 of 368 people (92%) found this review helpful
40.8 hrs on record
Portal was sort of a little experiment of a huge company. That’s why success of the first part of the Portal was a surprise even for the VALVe. Therefore seriously question arose about the Portal 2. And what we got? Let's see.

 STILL ALIVE?

  The game begins with the fact that Chell along with her new partner, personality module Wheatley, is trying to escape from an abandoned Aperture Science laboratory. Throughout the game, the plot makes a interesting twists. Individual deserves compliments perfect finale, after which there remain only a warm feeling. In Portal 2 no epic stories, huge explosions, incredible action, or the salvation of humanity. Instead, there is a charismatic characters, intelligent humor and interesting puzzles.

 ONE IS GOOD, BUT TWO IS BETTER

  One of the achievements of the new Portal has been the emergence of the cooperative. Co-op story is a continuation of the plot of the single player. At first I thought that the only difference of the cooperative is the presence of two players with portal-guns, instead of one. In fact, the cooperative has unique ideas. Many puzzles solving quite differently. I advise you not to play cooperative with a random person (there is that possibility), and play it with a good friend.

 ENDLESS TESTS

  In game was added a level editor, so anyone can create their own test chambers or try to play the levels of other players. To be honest, most of the player-created levels are too simple or ridiculous. But there is sufficient interesting maps (and some of them really hard). In no case do not miss the community maps.

 Multiplayer:
  Online: Θ Θ Θ Θ Θ Θ Θ Θ Θ Θ
  Co-op: ☺☺☺☺☺☺☺☺☺O
 Storyline: ☺☺☺☺☺☺☺☺☺O
 Graphics: ☺☺☺☺☺☺☺☺☺O
 Gameplay: ☺☺☺☺☺☺☺☺☺☺

 

 Complexity of the achievements: All achievements can be easily earned (if you have good friend for the co-op) in the one-two walkthrough.

    VALVe made another good
  game. With good intelligent humor,
  charismatic characters and unusual
  interesting gameplay.

                            As expected, nine out of ten [9/10].
Posted: June 19
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985 of 1,170 people (84%) found this review helpful
22.0 hrs on record
If this game was a potato, It would be a very good potato.
Posted: June 29
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190 of 212 people (90%) found this review helpful
62.4 hrs on record
If your friends don't think this is one of the best games ever, you need smarter friends.
Posted: August 28
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44 of 50 people (88%) found this review helpful
63.1 hrs on record
You either die a test subject or you live long enough to see yourself become a designer of test chambers in the workshop.
Posted: July 28
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197 of 305 people (65%) found this review helpful
56.8 hrs on record
12/10

If this game was a woman (or even a robot), I would marry her.
Posted: June 24
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1,561 of 1,659 people (94%) found this review helpful
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 26, 2013
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