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TesCO-Operation seriesCollection by Dr. Hax
The collecton of the TesCO-Operation maps.
Loco Chambers: Hopping MadCollection by Vatos Locos
(Single Player) This Collection focuses on a specific jumping ability. Difficulty: Chamber 1 - Easy/Medium Chamber 2 - Hard Chamber 3 - Very Hard These 3 Chambers are not meant to be overly fun, but rather meant to teach you a really cool new tri...
Time 2 CooperateCollection by Parano.Oya
This collection includes the cooperative maps for "Time 2 Cooperate".
Loco Chambers: Co-op Game ChambersCollection by Vatos Locos
Co-op The Ultimate Co-op Collection of Gaming Chambers! All Chambers within this Collection are 'Game' Chambers (Player vs Player) Please refer to Chamber descriptions before playing. Have Fun!
Countdown to Extinction (Director's cut)Collection by jk7201
This is a special version of the Countdown to Extinction collection. It contains the original maps plus some extra stuff. The difficulty increases as you proceed, so following the suggested map order is highly recommended.
L1zardr0cket's Best of the BestCollection by SHREK FAMLY
This collection of maps are my personal favorites :) I hope you enjoy!!!!
Laser ConnectionCollection by FLooper
It's a collection of all maps, where you have to connect a laser with some receiver to exit the level. I call the lever "Laser Connection". At this time, there are 4 maps in total. I hope you have fun to think about the solutions ;) !i!i!i!i!i!i!i!i!i!...
Escape From PotatOS LaboratoriesCollection by PotatOS Gaming
What is 'Escape From PotatOS Laboratories'? Escape From PotatOS Laboratories is a custom hammer'ed Portal 2 series set in the custom made location known as PotatOS Laboratories, also known as my labs. CoreOS oversees all the test chambers but things star...
Nigh Eva - Back In Time CollectionCollection by Turret Cube
Lautaro CooperativesCollection by Lautaro
If you like to play cooperative chambers, then you're in the right place, here are my best ones:
InfinityCollection by Aevo
Finally got the Hammer Editor working. Decided to make a map series with it. Background plot is fairly self-explanatory... You're somebody working in Aperture in the 1970s and you're doing... stuff...
MidnightCollection by RectorRocks
Midnight is a seven map mappack that revolves around Chell and an unknown character as GLaDOS puts her to testing. Each level have their own achievements and ends with a post-game report, that shows which achievements were obtained and the time taken to c...
Test subject 5519Collection by Infamous player
SO who is this guy named "Test subject 5519", and what is going on there? Well don't ask me, i yust asked you! Thats why if you want to know what is this guy up to and what exacly is going on there you're going have to check it by your own! AND ANOTHE...
Portal 2.63Collection by Nobody No-One
DISCLAIMER ::::: The Subscribe to All Button does not work. You must subscribe individually, in order. PORTAL 2.63 is an entirely custom story with 10 chapters and 139 tests, made from the best maps in the Workshop, assembled for the ...
UNREAL CHAMBERSCollection by Enderlux
These are the unreal chmbers. Prepare for the most unreal chambers you've ever seen :D
Gravitron CollectionCollection by echoplex
Gravitron Collection - a series of singleplayer tests for Portal 2, in which you control a gravity gun, and built on this test chambers. It is planned to create about 10-15 tests, although their number may change. Thank you for playing in these tests and ...
The Office PrankCollection by Camßεn
You play as Haley, a simple employee of Aperture Science, simply going to work everyday, working an office job in the main lab area. But today something was wrong. All of your coworkers are nowhere to be found. What could it possibly mean? Venture dee...
The Employee: Official CollectionCollection by Dr. Orange
The Employee: Official Collections is exactly what it sounds like. The official collection pack for the Employee series. More maps will be added when they are released. Complete storyline (hover mouse over spoilertext to read) spoilers...
Gelocity 1 vs 1Collection by Raidix
A collection of Portal 2 race maps. The tracks are covered with orange speed gel. Use your portal gun cleverly to trick your opponent and be the first to reach the finish line!
[COOP] This is TeamworkCollection by DrFauli
Easy/Medium maps with great teamwork, mostly using two main elements to create puzzles.
ReconstructionCollection by LoneWolf2056
An in progress series of maps in the destroyed/ reconstructing theme, continuing from the Dilapidation series you must try to find a way to escape Aperture laboratories, but with GLaDOS awake and rebuilding the facility, that might not be so easy. Puzz...
INTO THE MULTIVERSE (an incomplete adventure)Collection by Blappeture Executive NO.1
The enrichment centre has worked hard to build the first ever Multiverse Device. However, you are but a mere test subject and are not privy to its sensitive machinery. So it was only natural that when you walked past security and pressed a few buttons whe...
Chrono Occurrence (WIP)Collection by S̲t̲i̲m̲i̲c̲h̲
In this new adventure you take control of a testing robot who will test the new time control button devices. Pause time or slow down time to accomplish things you couldn't before! Special thanks to: Sumeron - Professional SFX tester, voice acting,...
10 Reasons for ReassemblyCollection by Jepp
Difficulty: Medium/Hard Theme: Destruction Estimated Playtime: ~3 hours Hello dear testsubjects! 10 cooperative testchambers signing in, I hope you you'll enjoy and as always try to give me any thought about the maps in return, it makes difference...
Left 2 TestCollection by Mr Doom
Made in Hammer. Custom files added with VIDE. Story: Set between the events of Portal and Portal 2, you are Lazarus Grey, one of the subjects who survived GLaDOS' destruction. You are forced to navigate the abandoned facilites of Aperture and find an ...
Stasis Map PackCollection by Dreey
Somewhere in the bowels of Aperture, lies houndreds of test subjects, waiting for their entire life to be awaken to do some science.
UndergroundCollection by BEN 77
Diversity MappackCollection by ColorCubeMan
A mappack containing 4 tests in which the player will solve some GLaDOS chambers, escape from her facility and explore the old Aperture Science.
Friendship is magic! (Co-op)Collection by 14KarraT
I hope you will enjoy this collection and you will feel the power of friendship. Deviantart: http://14karrat.deviantart.com/ YouTube: http://www.youtube.com/user/14KarraT Don't forget "Love and tolerate" ! :3
DaMaGepy's mapsCollection by DaMaGepy
Medium-difficulty fun maps with special puzzle elements and custom graphic/music. I'm unemployed atm, this also means (luckily?) that I have all the time in the world to make maps :) I try not to post a map in 3-4 piece, I always hated that. I like hu...