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Bleeding EdgeCollection by kshegzyaj
You're going to bleed.
Zen ApertureCollection by LOZEMO76
Prepare to face some of the most fierce, fascinating, calmful, exciting challenges you have ever been through. (With Complete Zen!)
PhobiaCollection by Dexter
A collection of maps based on fears: altitude, narrow places, and much more.
The somewhat simple but not too simple testsCollection by getynge
This is a compilation of a bunch of somewhat simple, but not too simple, tests. (It will expand as I make more tests)
Cube Hunter Test SeriesCollection by Awesome Weegee
A series of tests based on finding and gathering Weighted Storage Cubes as a key piece in solving each puzzle
Portal EscapeCollection by Fry98
co-op mapsCollection by okaki
co-op maps collections
The Riddler CollectionCollection by Arceus152
Set of chambers inspired by 'The Riddler' himself and each with it's own unique riddle to help you solve the chambers one by one so remember to read each chamber's individual riddle or you could be going by trial and error for a long time at the mercy of ...
APERTURE Laboratories:First stepsCollection by SAND BICH
High security jailCollection by Xue Fang ツ
The highest security jail in the world is making a test to find failures in the security system. The good news is you will find failures, The bad news is you will go on place, alone, make a complete check up. -Good luck-
Magelanex Map BundleCollection by It's0wen
Hi and this is my collection of portal 2 maps! Please check out My Plorta Tests and My CO-OP Chambers!
Gel 'n' LaserCollection by mice304
Gel and laser. That's all I can say. It's not very hard test but you can play it just to kill time. Have fun!
Rescue The Frankens... All PartsCollection by HJustice
Frankens are prisoned! They need your help. You must rescue them, with your portalgun! Be careful! There are lots of sentries and traps! Good Luck Hero!
The Power of TwoCollection by Herr Warthog
Co-op maps Still under developtment, but working.
Tests Volume 2Collection by Bob the Weeping Angel
Don't expect anything hard. All were made by me. Try Vol.1 http://steamcommunity.com/sharedfiles/filedetails/?id=71686042
Riddle Me ThisCollection by SkateJerrySkate
A short collection of single player maps to keep your mind working.
GLaDOS's Lost TestsCollection by Unlocked
These are the lost test of GLaDOS. Before GLaDOS completely took over aperture science, the humans hid these tests because of reasons like "Too deadly" and "Not Possible" and other junk like that. Well GLaDOS ignored the humans and for 65 years has been s...
Portal Still AliveCollection by SurelyExploding
A remake of the challenge chambers from Portal: Still Alive on the Xbox Live Arcade
The Mame ChambersCollection by Kurumi
Galgamos Advanced Portal Testing FacilityCollection by -=CotS=- Galgamos
Greetings ladies and gentlemen. I am Galgamos and I'm the owner of this facility. It appears that there is a problem with our main AI. Would you mind to shut it down for us? We don't want to put any more workers into these chambers just to reach the...
That ItchCollection by Iksman
That Darn Itch... My collection of self made, fun to play maps I will also make a collection of the maps I found funny and nice, called "Dat Itch" That Darn Itch... to play Portal 2... it's killing me. I NEED PORTAL 2 NOW!
The Sundance LevelsCollection by wildBcat
Some fun levels that begin really easy and move up in difficulty. Work still in progress
Coop Extension BoxesCollection by Tobeh
Challenging coop puzzles, without too many elements!
The Humans are DeadCollection by Eruiongyll
Fun COOP MapsCollection by Parker
Onimia: CO-OPCollection by Beepity-boop
New maps will be done soon
The Lambda CooperativeCollection by Łλмв∂αðєłтą
The Lambda Cooperative is a collection of testing chambers designed for two players by the Lady Lambdadelta herself, creator of such singleplayer chambers as "The Lambda Chambers", "Lambda v2.0" and "Squarefall".
Coop mapsCollection by FedoS
junehanCollection by wnsgks8
Co-Op Challenges (1-5)Collection by Noctis
It will take a long time. Have fun on these Co-Op Challenges that I worked very hard on.