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Team 1396 Pt. IVCollection by cgranata27
Imagine HairyHagrid trying to play this collection, cause ya know, he cant even speak a sentence without screaming like a girl or shitting on James.
Grandpa TestingCollection by WaterLemon
In Stupid Laboratiories they use Grandpas as test subjects and you are one of them. Complete all the test chambers and die because you are too old. I will make more maps if people play and rate them (P-body and Atlas are not grandpas. They come to s
Camera Portal 2Collection by Angel
Camera Portal 2 - Very interesting and attractive. Play =)
testCollection by Ruo
coopCollection by ryuza
Numbios ChallengesCollection by Antee`
Numbios is waiting for challengers. Patience is bitter but its fruit is sweet...
KittyCollection by Sexy Iron Maiden
Portal Single Play CollectionCollection by Koda, the dog
Dittle's Test Chamber Series for Portal 2Collection by Kitten Dispenser
This is my Collection for my Test Chambers that I make for Portal 2. These chambers are not for Co-Op mode.
Quick Tests - MichaelSwan1997Collection by Captain Bambi Trout
Quick Tests created by MichaelSwan1997
RedPil test roomsCollection by RedPil
Here are my test rooms of portal2, give it a try, any feedbacks appriciated ;) gl, hf ^^
Cause & EffectCollection by Mr. Atoni
These are the Cause & Effect chambers. They are more supposed to be fun, than actually be a puzzle. So have fun, and please let me know if something is broken. :-D
Portal in in Portal 2 remadeCollection by Velocity
Like the Titanic... But with Bears.Collection by [va]ginasaur
Turtle Labarotorys!Collection by Doot Doot
Some Turtles From Earth #44444 Defeated The Sentiant Cloud And Took Over Earth #1 And Now Owns Aputure Science... Its Up To Survive The Turtles Test Chambers!
Single EscapeCollection by Elovan
(Requires BEEmod to play) A series of five maps dedicated to puzzles using a single portal gun and telling the story of a test subject trying to escape from the facility. If anyone would be interested in taking these maps and fleshing them out in Ham
MisdirectionCollection by Toby Schwartz
This is a ongoing collection of puzzles designed to make you think about what is necessary and what is extraneous in each level. Some are complex and some devilishly simple. The release of the first two levels occured on June 16, 2013. More levels will
Welcome Back - bonus mapsCollection by H4mmerPerson
Bonus maps for Welcome Back: http://www.moddb.com/mods/welcome-back. Thanks to ScottOfNorth for the original concepts for these maps.
PanelsCollection by Massada
All panel chambers.
Weekly ChallengesCollection by Firedog_Alpha
The Educational Testing Initiative CollectionCollection by Dopeman
This is a collection of the Educational Testing Initiative (or ETI for short) tests. The ETI is an experiment to show people how the PeTI items work or just to give people ideas for their own PeTI tests. This collection includes several tests about the tes
Six Portals. P.S. NOT SIX FLAGS.Collection by That One Guy
ITS SIX PORTALS Grab Your Whole Family And Have Some Fun. At Six Flags We Have 3 things 1.Fun Rides 2. Rides that have a 90 percent chance of death 3. And Finally boots that you can fall from any height and not break your legs. ( THIS IS NOT SIX FLAGS I KN
The Best Portal 2 MapsCollection by LegenDove
Use this handy collection to find top-quality Portal 2 Maps! This collection is updated frequently and will feature quality maps contructed by fellow Steam members! Run by NHPSjordan *If you would like to join me in spotting the best Portal 2 maps, just
GLaDOS's Discarded ChambersCollection by P-Deak
GLaDOS once created these thest chambers for special test subjects, but, after a certain series of episodes, those tests were lost and almost totally destroyed with time. After all Enrichment Center has been cleaned up and renewed, the Discarded Test Cham
jjCollection by Mini Games
Primary Colour [Original]Collection by World Princess ♡~
Primary Colour Hello everyone! Today Aperture presents new test chambers by me what titled as Primary Colour! This is just original version. Soon I'll start making new edition of this version. But what this chambers have new than others? - P
testing track 9251Collection by ThatguyJosh
hello and wellcome to testing track 9251 all the chambers here were made by jmfpayette we hope you have a plesint time testing for us thank you coments and feedback is very apreciated thank you i hope you enjoy
Friendship Mechanical CollectionCollection by RICK 100
The collection of series maps from Portal 2 with much work team. La coleccion de series de mapas para Portal 2 con mucho trabajo en equipo.
Parkour/speed tests collectionCollection by cancer~chan
These are my first test chambers
Series 1 - Test Chambers by JetronicCollection by Jetty, dat boi!!!
Hi, this is my first official collection: Series 1. It will have a total of 5 (FIVE, NOT FOUR) tests, and it will be ready soon Don't forget to check my Page on Steam, and most importantly, don't forget to send any comments you want.