The Perpetual Testing Initiative

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The Zombie Soldier 9 nov 2013 à 16h56 
I am taking the guess that "TeacherGaming" will use these kind of games to "educate" students in the classroom. They've done it with Minecraft already, so what will we do?
InfernoTNT 20 août 2012 à 1h56 
try my map:Co-Op Map
man_sorin99 6 août 2012 à 7h22 
so no coop no portal please
MrDyl 4 août 2012 à 10h59 
http://steamcommunity.com/sharedfiles/filedetails/?id=87272506

a bundle of maps to date. and i did test them and they all are possible to compleate.
grester43hck 22 juin 2012 à 17h54 
hello guys i made my first chamber last day and it seems to be very difficult because my friends can´t pass it jajaja. I love the idea of find some new people to trying my chamber and can pass it. Enyoying it guys ¡

http://steamcommunity.com/sharedfiles/filedetails/?id=77906654

Apologies for my bad english. The reason is that i´m spanish haha
GGamer360 17 mai 2012 à 11h05 
GoGo check my BunnyHop Tutoruial Map: http://steamcommunity.com/sharedfiles/filedetails/?id=72420067 really important for everyone
GGamer360 16 mai 2012 à 4h02 
My newest Portal 2 map: http://steamcommunity.com/sharedfiles/filedetails/?id=72155403 PLEASE check it out, it is really nice and has challenging levels. And please wrtie some feedback as a comment.

Are you PRO enough to master my levels?

Good Luck and Have Fun!
Lord Nibbler 14 mai 2012 à 4h45 
go to the properties for P2 in the library and the select verify local cache, I also had this problem
DreadHaven 9 mai 2012 à 16h28 
I installed the update, but now Portal 2 doesn't work anymore. It keeps showing an error report regarding a failure to locate the opening menu. How do I fix this?
Omni *EZ SKINS EZ LIFE 8 mai 2012 à 10h09 
So, still waiting...