14

You won't be able to delete any of the data and play it. Steam will force you to re-download all of the content before you can launch the game.


14

No, Xbox 360 discs cannot be installed on a PC. If you'd like to play Portal 2 on PC, you would need to buy a separate Steam copy.


13

This is actually a feature. Here's Portal 2 developer PersonGuy's explanation: Because the game is running 'offline', it doesn't have access to the progress data in Steam. To make this work we'll need to rewrite quite a bit splitscreen session code that assumes multiple log ins. So instead of making you start at the very beginning every session, ...


13

There is a huge thread on steamcommunity.com about an update from several months ago causing Portal 2 to have terrible performance on Macs. According to two users, this update fixes that issue. This is most anyone currently knows, there hasn't been any official word or reverse-engineering from the community yet.


10

Various answers here and here indicate that uninstalling and reinstalling the game will fix the problem (none of them mentioned if they tried verifying the game cache first, which should theoretically do the same thing, but be much faster). This post also suggests that you may need special graphics-card drivers for Windows 8.1, which you should be able to ...


8

We don't exactly know what GLaDOS is testing for. However, from the events of Portal 1, we can guess she's testing how efficient humans are in solving puzzles when under psychological stress. And indeed, she did put a lot of stress on Chell, such as: Telling her she'd die if she doesn't solve the puzzle. Claiming the chamber would not be monitored. ...


7

Its under copyright and they do not have any posted licensing terms, so unless you have a reason to claim 'fair use' there are no licensing terms. If you want to license the music and include it in your game, you are going to have to contact valve. http://www.valvesoftware.com/contact/


7

In order to get credit for each door, you must activate a little box with an intercom which start a short humorous announcement from Cave Johnson. There are a total of six of these "intercom" things. If the door you are looking at doesn't have a working intercom thing, it doesn't count towards the achievement - keep looking. A good video guide is here if you ...


7

The Animal King Turret is first seen during Chapter 1 ("Courtesy Call") on the screen in the elevator room just before test chamber 2. As the player exits the elevator, the recorded announcer gives the following voice-over: If the Earth is currently governed by a manner of animal-king, sentient cloud, or other governing body that either refuses to or is ...


6

If you mean the music that I think you mean, then it's Santorini, by Greek instrumentalist Yanni Hryssomallis. The original is here. It sounds like an electronic version rather than the original in the trailer though.


6

First go to the main menu and go on the community test chambers. Then go on either single player or co-op. Use the mouse/controller to scroll to "My Queue" and it should say all the names and maps of the chamber you have got. Happy playing!


5

Yes there ARE people left on the surface. At the end of Portal 2 you leave the elevator and are confronted with fields of wheat. Wheat fealds are quickly over run by weeds when left unattended. As there isn't a single weed in the fields then there must be people left alive to tend to them......


5

Because game engines don't necessarily follow the laws that apply for you and me ?... Simply put that's just how the Game engine is designed to operate. No one ever advertised the Source engine as one to apply the 3rd law of motion.


5

Based on this reddit thread, the bars indicate which chambers have been completed by the respective player. As each chambers are completed, the bars will be filled in. The blue bars indicate which chambers have been completed by the player controlling Atlas The orange bars indicate which chambers have been completed by the player controlling P-Body In the ...


4

I think the feeling of succes will be greater when you've solved it yourself. But that's just me. If you really want to know, watch this video:


4

On OSX and Linux, joy_remap_player_for_controller1 1 is not a valid command. There is, however a workaround. In short, you exploit a bug in the command that allows you to test coop maps with a single player (in_forceuser). Here's how: Make sure your controller is connected (important on OSX at least. Plugging the controller after the game is launched does ...


4

This feature is now available using a method significantly easier than the answers from 2011 suggest. You will need at least once XInput (XBox 360 compatible) controller. Two controllers (officially supported) On the main menu, select Play cooperative game Have the second player press X on their controller Woosh! Keyboard / Mouse and a controller On the ...


4

you can catch him using the developer console. when he starts falling of his rail, open the console and enter this command: ent_fire !picker enablepickup; ent_fire !picker use then you will be holding him, but when you plug him into the "stick", he acts like he fell to the ground. then you can pull him out, but if plug him back, he will do nothing. and ...


4

In both PC and console, I believe you can't, the grabbing system has changed since Portal 1, where you could either free or throw (free : grab key, throw : primary fire). Now it's a bit trickier, because you have to make a swing in order to throw your cube. The swing-release is possible because with a mouse, you control the position of the view, which means ...


4

Finishing all of the levels in a category will unlock the next one. So in your case, if you finish all of the levels under Mass and Velocity, you will unlock Hard-Light Surfaces.


4

I remember this one, The way to get the cube is to block off one of the cube's pathways with the light bridge. Hopefully that's enough information to get you where you need to be, without solving it. Good Luck!


4

I think you may be misunderstanding how game engines work. Game objects don't have real world physics properties by default. Simulations of physical properties like bullet recoil can only be present if they have been specifically programmed into the game. Even if a turret or weapon was programmed to have recoil when fired, the programmers could just turn ...


4

SOLUTION: Ignore stock (libre/open source) drivers Ignore AMD website's Crimson or older driver recomendations Check for latest AMD drivers (phoronix 1 is the best way) download latest (for now August-2018) drivers here: https://www.amd.com/en/support/kb/release-notes/rn-prorad-lin-18-30 check in the AMD Radeon™ Product Family Compatibility section if your ...


3

Using a third party program it is possible to reset your achievements as they are NOT stored server-side. Though extremely unlikely, it is possible to be banned for doing this. As of July 2015 I don't believe Steam is banning for using SAM. http://gib.me/sam/


3

Try deactivating your antivirus and your firewall while installing your game. This will often fix your problems. If that doesn't help, try selecting a different Steam server, and install it again.


3

I had the same problem as you. It only worked after I closed the game, unplugged all the controllers and reopened the game. Not sure if it's related, but I also changed the Fullscreen setting to "Windowed (no border)". Good luck!


3

Yes, Portal 2 is available for Mac. If you search for it on Steam, you will see the Apple logo, which indicates it is available for Mac. The system requirements are also listed on the store page for Portal 2.


3

The fix for me was to go to F:\SteamLibrary\steamapps\common\Portal 2\bin and modify the file GameConfig.txt It contains something like "GameDir" "C:\SteamLibrary\steamapps\common\Portal 2\portal2" Change C:\<Old Drive> to F:\<New Drive>. Also do same thing for "BSP" "Vis" ... and any other Data that defines a path.


3

No, this isn't possible to do on the Xbox 360.


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