4
votes
1answer
468 views

How many vitrified doors are there in Portal 2?

I'm trying to get the Door Prize achievement in Portal 2, by investigating vitrified doors. I don't want spoilers to their locations or areas, but I would appreciate knowing How many vitrified ...
4
votes
4answers
762 views

If two people who have never played co-op before play together, will they both get the “Professor Portal” achievement?

Neither this question nor this question covered this. I have not yet played any Portal 2 co-op (online or offline), and neither has someone else. Will the achievement unlock for: Both of us? One ...
24
votes
1answer
1k views

How can I clear Steam achievements for Portal 2?

My brother has played Portal 2 on my account and got a decent chunk of the achievements without specifically trying for them. Shamefully, I haven't yet played it, but I want to of course. I really ...
7
votes
2answers
926 views

Is Portal 2 Talent Show Achievement disabled?

I and my friend just completed that chamber and we did not lose any cube and we didn't get the Talent Show achievement. We repeated the chamber, not losing the cube again and we still didn't receive ...
2
votes
1answer
398 views

How many different monitors exist in Chapter 8?

There is an achievement for smashing a certain number of different monitors in the game. It seems like there are no possible ways to break some of the monitors, but I still haven't broken enough of ...
6
votes
2answers
670 views

“Professor Portal” achievement in Portal 2

I achieved almost all of Portal 2 achievements, except "Still Alive" and "Professor Portal". The first one is not a big problem but second one is, since my steam friends who have Portal 2 have already ...
28
votes
4answers
2k views

How to unlock the achievements related to hidden areas in Portal 2?

Portal 2 features a number of achievements that are related to "hidden" areas: Door Prize Final Transmission Ship Overboard Portrait of a Lady Party of Three How can I unlock them?
8
votes
1answer
15k views

Where is the hidden weighted companion cube when playing Portal 2 in co-op? (Party of three achievement)

Amazingly I'm having trouble Googling for this one and I don't have the time going through all the chambers for crazy jumps etc... Where is it?
7
votes
3answers
673 views

Why did I stop getting achievements halfway through Portal 2?

I played through Portal 2's single player in 4 hours yesterday, however, I have only gained achievements for the first hour or so of playtime. What could have caused this? I didn't use any cheats, ...
12
votes
1answer
962 views

Is there an achievement in Portal 2 like Portal's Transmission Received?

Similar to the previous Portal's achievement, do you get an achievement in Portal 2 for bringing a radio along to certain points?
7
votes
0answers
25k views

All Portal 2 Achievements and how to get them [closed]

Being the achievement whore that I am, and knowing that others out there are as well, I thought it'd be good to have a centralized place where you can see what you have to do to get them all. ...
9
votes
4answers
2k views

Getting the Overclocker achievement in Portal 2

One of the achievements in Portal 2 is Overclocker Complete Test Chamber 10 in 70 seconds There doesn't seem much room for error if you want to finish that room in under 70 seconds. Any ...
27
votes
4answers
11k views

How do I achieve “Smash TV”?

Which eleven monitors do I have to break to obtain the Smash TV achievement? I'm assuming it's the monitors that appear throughout Chapter 8? But, having just run through Chapter 8 and trying to ...
5
votes
1answer
614 views

Can I unlock the “You Saved Science” achievement in split-screen co-op?

The achievement description states: Complete all test chambers in all courses of co-op. Can this be completed in split-screen to unlock this achievement, or does it have to be done over Xbox ...
16
votes
1answer
15k views

Where is the Portrait of a Lady achievement?

Where do I need to go in Portal 2 to get the Portrait of a Lady achievement? I thought it would've been the portrait of Chell I found (the one that was on the cover of the comic) but that apparently ...
48
votes
2answers
17k views

How do I take the companion cube with me after the level “Cold Boot” in Portal 2?

In "Cold Boot", on GLaDOS 7 -- the first time I encounter a companion cube -- the Material Emancipation grid is broken. GLaDOS makes a point of pointing this out, and saying don't take anything with ...