The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!
User reviews:
Recent:
Overwhelmingly Positive (885 reviews) - 98% of the 885 user reviews in the last 30 days are positive.
Overall:
Overwhelmingly Positive (72,464 reviews) - 98% of the 72,464 user reviews for this game are positive.
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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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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Downloadable Content For This Game

 

Recommended By Curators

"Phenomenal, while it doesn't use it's space as well as the original, the Steam Workshop and mods allow for near infinite playtime worth every penny."

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
    • Storage: 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
    • Storage: 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
    • Storage: 8 GB available space
    • Sound Card: OpenAL Compatible Sound Card
Customer reviews
Customer Review system updated Sept. 2016! Learn more
Recent:
Overwhelmingly Positive (885 reviews)
Overall:
Overwhelmingly Positive (72,464 reviews)
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40,034 reviews match the filters above ( Overwhelmingly Positive)
Most Helpful Reviews  In the past 30 days
64 of 66 people (97%) found this review helpful
45 people found this review funny
Recommended
159.4 hrs on record
Posted: August 31
Now that I've gotten all the achievements and given up so much of my life to science, it's time to review this outstanding game.

--Pros--
♥ Witty and honestly perfect dialogue
♥ Memorable characters and references
♥ potatoes
♥ Amazing soundtrack
♥ Creative puzzles
♥ Co-Op
♥ Cute mutants
♥ Lemons and a snazzy Cave
♥ $60
♥ You can seriously replay this game over and over again, I'm living proof of it with 150+ hours
♥ Amazing community maps that you can always play if you want more pizzazz

--Cons--
♦ Neurotoxin
♦ Being called fat
♦ The cake is a lie
♦ Does not include friends for co-op (But there's always a companion cube for you lonely people)
♦ You can't eat the potato
♦ Birds


Okay but seriously, this game will forever stay in my heart. Its originality and engrossing storyline is why it's so beloved by others. No matter what kind of gamer you are, and no matter what kind of mood you're in, you will enjoy the gameplay. Just trust me, try this game. You'll be GLaD you did. <3
Was this review helpful? Yes No Funny
61 of 64 people (95%) found this review helpful
5 people found this review funny
Recommended
51.8 hrs on record
Posted: September 8
No steam library is complete without this masterpeice
Was this review helpful? Yes No Funny
20 of 24 people (83%) found this review helpful
11 people found this review funny
Recommended
25.5 hrs on record
Posted: September 7
Are you still there?

Lemons, m♥ron, portal, cube, gel, portal, think, think, think! You're fat. Portal. Logic. Think hard! Potato. Push the button. Don't push the button.

Target lost.
11/10
Was this review helpful? Yes No Funny
15 of 17 people (88%) found this review helpful
2 people found this review funny
Recommended
16.8 hrs on record
Posted: September 13
My first Portal game. Obtained in 2016.
immersive tutorial, great story, awesome gameplay.
Instantly bought the first one - no regrets.
Was this review helpful? Yes No Funny
12 of 13 people (92%) found this review helpful
2 people found this review funny
Recommended
11.9 hrs on record
Posted: September 16
Portal 2 is even better than Portal
Portal 2 is another game on my "must play" list. Portal was already incredible, yet somehow Valve managed to make the sequel exquisite.

Positive:
- Fluid, responsive controls
- Amazing puzzles, both for single player and co-op
- Great difficulty curve
- This time there is actually a story. We finally get to learn more about Aperture Science.
- Wheatley joins the party. In combination with GLaDOS, their unique personalities and humour just make Portal 2 incredible. Basically fantastic script and voice-acting.
- This is not just a remake of Portal. This time gels are added to put a unique touch on puzzles. Basically an upgrade in gameplay and difficulty.
- Co-op mode! Like single-player, the co-op mode is brilliantly designed, and addictively fun.
- Community-made maps (basically endless fun and challenges)
- Companion cube still loves you <3

Negative:
- Still no cake
- You require a competent buddy for co-op

Conclusion:
Valve really outdid themselves this time. There really isn't much else to say. The praise I gave in my Portal review is just as valid here, although it must be said that Portal 2 deserves even more praise. You would be a fool not to play Portal and Portal 2.
Was this review helpful? Yes No Funny
8 of 8 people (100%) found this review helpful
Recommended
41.9 hrs on record
Posted: September 30
Valve's Swan Song.
Was this review helpful? Yes No Funny
8 of 9 people (89%) found this review helpful
Recommended
171.0 hrs on record
Posted: September 23
I love this game so much. Like, I could play this game every day for the rest of my life because of how much it offers. I would play Co-op with anyone. I've beat this game 5 times and I've speedrunned it. If I can't stress how much I love this game, I want to state that I really love this game.

Ughh until I do a proper review, WHICH I WILL. I can only say that this is truly a masterpeice, and I have no complain about this game. This is in my opinion the example of a perfect game.

I've gifted this game nearly 10 times now. I've made it my tradition to gift Portal 2 to any friend I introduce to steam to, and let me tell you know, each one of them ends up being an loving portal fan.

Buy this game, no questions. It's meta critic of 96 and the most positively review steam game for a reason!
Was this review helpful? Yes No Funny
6 of 6 people (100%) found this review helpful
1 person found this review funny
Recommended
27.2 hrs on record
Posted: September 8
You can build your ownn maps, which is good, thanks Valve
Was this review helpful? Yes No Funny
8 of 10 people (80%) found this review helpful
1 person found this review funny
Recommended
15.8 hrs on record
Posted: September 4
Portal 2 is far more refined than its predecessor.

Better graphics. Granted the game did came out 4 years after.

Better humor. 81 min into the game I must have chuckled 4-5 times at GlaDOS's remarks.

Better physics. The cube and various objects **feel like** they bear actual weight this time.

Better puzzles. I no longer get disoriented solving them.

I actually care about Chell, that flying bot with blue eye and of course GlaDOS----this didn't happen while I was playing Portal.

While I'd gave Portal a borderline 6 / 10, I'm inclined to rate Porta 2 at least a 8.5 / 10.
Was this review helpful? Yes No Funny
3 of 3 people (100%) found this review helpful
2 people found this review funny
Recommended
2.5 hrs on record
Posted: September 8
it hase puzzels so its good
Was this review helpful? Yes No Funny
Recently Posted
✪Tiki
16.1 hrs
Posted: October 1
Good game and fun with *FRIENDS* and alone
Helpful? Yes No Funny
CryPotato
16.0 hrs
Posted: October 1
TRIP



BALLS


IN



PUZZLES
Helpful? Yes No Funny
Caroline❤ The Queen of Angel
3.8 hrs
Posted: October 1
Science is magic x3
Helpful? Yes No Funny
Hustlin
0.6 hrs
Posted: October 1
Brilliant.
Helpful? Yes No Funny
Phight Tussy
20.6 hrs
Posted: September 30
epic game
Helpful? Yes No Funny
☢e621☢ Eclipse
9.7 hrs
Posted: September 30
worth, every, penny
Helpful? Yes No Funny
Philly
6.2 hrs
Posted: September 30
Hey thats pretty good
Helpful? Yes No Funny
Selorium
216.1 hrs
Posted: September 30
Note: This review contains some spoilers. Read at own risk!








In the co-op story ending, GLaDOS is scanning test subjects. The camera focuses on a monitor showing the scan results. It also acts as the credits, as the names are Valve employees who worked on the game/story.
While doing so, GLaDOS comments one some of their "results."
Here's what she commented on Valve employees (and other various Apperture Science products):
  • Adrian Finol: "Team player."
  • Alex Vlachos: "Horrible people skills."
  • Andrew Burke: "Never listens."
  • Andy Nisbet: "Never shares."
  • P-body: "Always sleeping."
  • Brian Jacobson: "Never on time."
  • Chandler Murch: "Inattentive listener."
  • Chris Douglass: "Awful attendance record."
  • Chris Welch: "Blabber-mouth."
  • Connor Malone: "Hates Mondays."
  • Dave Saunders: "Incoherent."
  • Derrick Genrich: "Insecure."
  • Doug Wood: "Procrastinator."
  • Eric Wolpaw: "Chronically late."
  • Jeff Unay: "Aggresive. I like that."
  • Joe Demers: "Timid."
  • Wheighted Storage Cube & Companion Cube: : "Feeds off the misery of others."
  • John Lippincott: "Lacks confidence."
  • Ken Banks: "Underestimates scope of work. They all do that."
  • Liam Lavery: "Moves lips while reading."
  • Mark Nagel: "Can't read."
  • Martin Otten: "Lacks empathy."
  • Matt Nickerson: "Cheater."
  • Matthew An: "Steals lunch from staff fridge."
  • Philip Saltzman: "Makes long lunches. [chuckles] Not for long."
  • 3 Packaged turrets: "Avoids responsibility."
  • Steve Bond: "Never completes work."
  • 3 Cores: "Laughs at own jokes. What a bore."
(Others that aren't on this list are either can't be heard coherently or can't be heard at all.)
It's almost like they're "accidentally" being mean to their employees!
Also like to point out that Gabe Newell is listed as "Global Emergency Archeologist" and Robin Walker (best known for co-developing Team Fortress & Team Fortress 2) as "Direct Human Fighter."
All of this came from here.
Helpful? Yes No Funny
ioletsgo12345|
101.9 hrs
Posted: September 30
Portal is portal.
Portal is Great.
Great is amazing.
And amazing is fantastic.
so portal is fantastic
Helpful? Yes No Funny
Olrox
10.3 hrs
Posted: September 30
Amazing game. Period.
Helpful? Yes No Funny