The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!
User reviews: Overwhelmingly Positive (38,250 reviews)
Release Date: Apr 18, 2011

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Buy Portal 2

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$19.99
$9.99

Buy Portal 2 - Two Pack

Includes two copies of Portal 2 - Send the extra copy to a friend.

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$34.98
$17.49

Packages that include this game

Buy Portal Bundle

Includes 2 items: Portal, Portal 2

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Buy Valve Complete Pack

Includes 24 items: Counter-Strike: Global Offensive, Portal 2, Left 4 Dead 2, Left 4 Dead, Portal, Team Fortress 2, Team Fortress Classic, Counter-Strike: Source, Counter-Strike, Counter-Strike: Condition Zero, Day of Defeat, Day of Defeat: Source, Half-Life 2, Half-Life 2: Deathmatch, Half-Life 2: Lost Coast, Half-Life 2: Episode One, Half-Life 2: Episode Two, Half-Life, Half-Life: Blue Shift, Half-Life: Opposing Force, Half-Life Deathmatch: Source, Half-Life: Source, Ricochet, Deathmatch Classic

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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!

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.

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

Windows
Mac OS X
SteamOS + 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
1,728 of 2,037 people (85%) found this review helpful
22.0 hrs on record
Posted: June 29
If this game was a potato, It would be a very good potato.
Was this review helpful? Yes No
578 of 674 people (86%) found this review helpful
67.8 hrs on record
Posted: August 28
If your friends don't think this is one of the best games ever, you need smarter friends.
Was this review helpful? Yes No
446 of 548 people (81%) found this review helpful
9.7 hrs on record
Posted: November 14
BEFORE YOU BUY THIS GAME

░▎Note that after playing this game your brain WILL explode (with knowledge)
░▎Understand that your iq will increase
░▎May contain traces of Smooth Jazz
░▎Know that this game is awesome

Realise You have been warned...
Was this review helpful? Yes No
361 of 445 people (81%) found this review helpful
119.1 hrs on record
Posted: November 15
Its little to say that this game is great.
But if Lord Gaben could count to 3 when it comes to making games, that'd be amazing.
Was this review helpful? Yes No
220 of 265 people (83%) found this review helpful
63.1 hrs on record
Posted: July 28
You either die a test subject or you live long enough to see yourself become a designer of test chambers in the workshop.
Was this review helpful? Yes No
167 of 196 people (85%) found this review helpful
11.2 hrs on record
Posted: October 24
A woman with millions of fan theories about without ever speaking a word.
Intentionally designed to be stupid British cores.
Cruel women cores that are really good at singing.
Turrets with low self esteem.
A man that hates lemonade and sounds like J. Jonah Jameson from spiderman.
A potato that becomes your friend.

Combined together with the one of the most original gameplay ever.

10/10
Was this review helpful? Yes No
252 of 323 people (78%) found this review helpful
8.9 hrs on record
Posted: July 5
Possibly THE worst game in the L4D franchise. Gordon Freeman is a girl now and is being bossed around by some transgender Gman in a spooky eye thing, who is also british. There is no sign of Coach, Bill, Tyrone or the infamous Pillman, who we discovered after playing the first installment of the Minecraft franchise. For a JRPG the combat is pretty weak, the loot system is awful and you can't even speak. (no rhyme intenderino).

Overall this game is pretty solid, i'd give it a strong 10/5
Was this review helpful? Yes No
70 of 77 people (91%) found this review helpful
25.7 hrs on record
Posted: November 4
Take everything you love about Portal, then times it by five. This game has so many good aspects to it, it's hard to know where to start.

Sound? Witty dialouge, excellent voice work, a really cool soundtrack, and even something as simple as the sounds that the portal gun makes sound awesome!

Gameplay? Addictive.

Story? Really good. There are some parts to the story where I genuinely felt threatened and isolated.

Graphics? Nothing to complain about.

Although Portal 2 is undoubtedly one of the best games I've played in a while, there are two errors that I find with it:

#1 There are parts in the game where you have to use the "zoom" key to find almost unfindable portable surfaces. I thought this gameplay mechanic was rather silly and annoying.

#2 There are parts in the game where the events that happen don't make much sense, and you wonder why you have to do certain things or why you're in certain places.

Overall this game is one of the best games of our generation, and it's loads of fun. It's good aspects overwhelmingly outweighs my tiny nit-picked errors.
Was this review helpful? Yes No
124 of 160 people (78%) found this review helpful
17.6 hrs on record
Posted: October 19
It's a good game. Has important lessons about lemons. 10/10
Was this review helpful? Yes No
208 of 289 people (72%) found this review helpful
23.1 hrs on record
Posted: October 26
If you don't think this is the best game ever made, then you are nothing but a battery operated potato. By the way, no cake for those who rate this review down. Thank you for cooperating with Aperture Science in our time of testing. We hope to work with you again, that is if you feel fantastic and you're still alive.
Was this review helpful? Yes No
279 of 403 people (69%) found this review helpful
28.3 hrs on record
Posted: November 24
Chell has 5 letters in it.
Chell has been in 2 games.
5-2=3
Illuminati has 3 sides.
GLaDOS has 1 eye.
Illuminati has 1 eye.
Portal=Illuminati
Illuminati=Portal 3
HALF-LIFE 3 CONFIRMED!
Thanks for confirming, Portal.
Was this review helpful? Yes No
63 of 83 people (76%) found this review helpful
53.1 hrs on record
Posted: October 28
10/10 - Would buy again.

Oh wait, I've already bought it three times.
Was this review helpful? Yes No
45 of 55 people (82%) found this review helpful
35.6 hrs on record
Posted: October 31
This is one of my most favourite games, it has an amazing and in depth storyline. The easter eggs like the borealis one are amazing. The plot twists aren't expected unlike most games where you know what will happen next. I'm a huge fan of greek mythology so when I found the oracle turret, my mind was blown! Cave Johnson was definetly a great character to introduce and to help us find out more about Aperture. THE ENDING, I absolutely loved the ending!!
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34 of 38 people (89%) found this review helpful
15.3 hrs on record
Posted: December 3
It goes without saying this is exceptionally one of the greatest FPS' that doesn't require real bullets, targets and most other stereotypical mechanics that are found in that specific genre. This game demonstrates what it always had shown in it's prequel; ingenuity and a perfection. Now imagine all those unanswered questions that linger within the first one, and how this game answers all those said questions with the utmost scientific explanations and entertainment from this one. From what I could honestly tell you, this game took the first games mechanics, and widened the story much more bigger and some what better. Definitely worthy of Game of the Year 2011. Much like my other short review on a peculiar Valve title (that happens to be another sequel) This game doesn't even need to be reviewed more in-depth due to the high magnitude and complete satisfactory found within this wonderful game. From what I could honestly tell you, this game is blessed with the voice acting of the high and mighty, Stephen Merchant, along with 2-player modes that'll leave the fun endless with a friend. I've said my word and it's a 11/10 recommendation from me.
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51 of 67 people (76%) found this review helpful
9.4 hrs on record
Posted: October 17
This game has enough talent and genious put in it, that you can put together a dozen AAA title just from scraps. You have to finish both games... just to hear the credit song <3

I'm a potato! :D
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39 of 48 people (81%) found this review helpful
46.7 hrs on record
Posted: November 9
10/10, all class. Easily in my top 3 games of all time, a genius game. The perplexing puzzles and thoughtful level design make this game so memorable. Sarcasm and Sardonic humor is sprinkled throughout. Never for one moment does any thing in this game seem like a lazy or poorly crafted addition. Everything works!
Was this review helpful? Yes No
123 of 188 people (65%) found this review helpful
16.5 hrs on record
Posted: November 5
I can't complain about a game that Gaben made.
Was this review helpful? Yes No
88 of 135 people (65%) found this review helpful
21.7 hrs on record
Posted: October 29
Yes
Was this review helpful? Yes No
38 of 50 people (76%) found this review helpful
9.1 hrs on record
Posted: September 25
Dude, it's portal!
Was this review helpful? Yes No
22 of 24 people (92%) found this review helpful
15.7 hrs on record
Posted: July 11
Great game, but still no cake

Kudos to the guys at Valve for bettering an original yet again. Portal was a masterly work of originality and ingenuity and PORTAL 2 takes the principles laid down in the first game and develops them even further. The puzzles are even more creative and there’s a much wider variety of environments to work your way through. And these environments are often quite breathtaking to behold, which is in itself impressive given the age of the Source engine. Graphically it’s huge, expansive, and immersive. And then there’s the writing of course. Valve have always been at the head of the pack when it comes to the quality of the writing behind their games and P2 is no exception. The script is sharp, dry, and delivered to perfection by the cast. To top it all there is now the option to play community-created maps and coop games with others. What more could you want? 5/5
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