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The Employee: Official CollectionCollection by Dr. ☠range
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...
Motanum's Standardize PuzzlesCollection by Motanum
Motanum's Standarlized Tests! All maps made in hammer and now take advantage of the workshop! Now with Cave Johnson's lines! Starts relatively easy and gets more complicated as it goes on! Don't forget to rate and enjoy! And leave comments
The Get Smart SeriesCollection by DeathWish808
The Get Smart Series.
Mari0 mappack (Work in progress)Collection by ヘラルド420煙時間VHS
This collection contain remakes of the maps from the Mari0 game, produced by Stabyourself.net, from the mappack called "Portal". I'm not the creator of Mari0, just a fan who enjoyed the game and was looking a way to recreate this maps for Portal or Portal...
Escapology of DiseasesCollection by RectorRocks
Maps with dangerous diseases in which you must escape in order to avoid contracting it.
Reddit Community MapsCollection by Espen
This is a collection of maps made by the Reddit community. If you want your map(s) added to the collection, just link to the map(s) you want added in the comment section and to your reddit profile. Please do not make requests of maps that are not made...
New Game Element - Sphere CannonCollection by DrFauli
This is a new game element named 'sphere cannon', which works for SP and COOP maps and can be used in PTI Editor and Hammer Editor.^ Features: - movement synchron to portalgun - sounds and reload animations - left mouse button to fire a (blue) sphe...
Adventure puzzle collectionCollection by UFS FrostGiant
Here is a collection of all my maps created for single-player.They are all funny with new techniques,mechanics and tricks. Some of maps are around medium difficulty and some may be a bit harder. Enjoy playing ! If you want me to play your maps you can ...
No portals. Just JumpsCollection by James
Various kinds of jumps. Contains 5 maps, 2 easy, 1 medium, 1 hard, and 1 very hard. The maps do not use portals but instead timing and creative use of strafing and jump tactics. Lots of speed gel :) Very hard map just added (simple tasks but very hard t...
5 ExtraTestsCollection by Extragamer
4 тест камер сделанных в игровом редкаторе.
Eight Mappack - Sober (Part 2)Collection by echoplex
Subject ZCollection by doctorhitts
Here's a collection of all the Subject Z maps I have created. There really is no story, or order they should be played in, they're just listed chronologically from when I created them. Some were experimental and I named them as such. I hope you enjo...
Wheatley laboratoriesCollection by BEN 77
Mine WorldCollection by Solevant_Gecko
PC Gamer: Best Portal 2 Singleplayer Maps & CampaignsCollection by Aradalf
PC Gamer's top Portal 2 singleplayer maps and campaigns, available here: pcgamer.com/2012/11/03/the-best-portal-2-singleplayer-maps-and-campaigns
Escape from ApertureCollection by Anachronistic ALLOS
[ PLAY THE REMAKE INSTEAD! http://steamcommunity.com/sharedfiles/filedetails/?id=476097276 ] In another multiverse, you are Mark Bendest, a test subject who volunteered at Aperture for an experiment to turn people into three-dimensional manifestations ...
Pneumatic Diversity vent testing initativeCollection by Flo2912
This is a collection of test, using the Pneumatic Diversity vent, a planed testing-element. Valve removed it in last minute, I dont know why :( Note: I haven't made this maps, I only searched for them.
Multi-Purpose ChambersCollection by kimryan0416
The Lemon FilesCollection by Acid Regulation
Join Cave Johnson in his search for new ways to make more money... (Besides the profits he makes with Aperture, which you are still testing for) ----------------------------------------- Made with BEEmod and Hammer. ------------------------------...
GmodVk CollectionCollection by Skap
Коллекция участников группы vk.com/garrysmod
I'm Special Introduction - CompleteCollection by RelativePierce
A refreshing collection of test where creativity is the key to the solution. These test requires a new way of thinking comparing to what portal already taught you. They are probably challenging and I do not promise they are super fun, but I do promise the...
Portal 2: The AftermathCollection by Spamfan
Portal 2: The Aftermath, is a Portal 2 workshop collection which introduces to the player events that might occur after the singleplayer campaign ends. Offering at least one entire hour of mind-boggling gameplay, challenging you to use Portal...
Abandoned Chambers COOPCollection by Hunter-Killer
With everyone testing in other dimensions and GlaDOS occupied with her new little killers, Atlas and P-body were getting pretty bored so with nothing better to do they decided to wander off into the unknown and ended up stumbling across the abandoned cham...
The Highly Confounding Halolz Testing Initiative for Gentlemanly Portal PlacersCollection by StacMaster-S
The official collection of Halolz community test chambers! Are you a Halolz regular? Submit your levels to our Steam group today! http://steamcommunity.com/groups/halolz-portal
VerticalCollection by Grameir
Vertical tests. Not too hard, not too easy,
Escape from ApertureCollection by Hunt2013
As GLaDOS regains full control of the facility the only way to escape is to play along. Complete the testing courses and find the way out starting from the Cave Johnson Era of Aperture make it to the current and gain your freedom.
Russian Test Box MapsCollection by HINK
Русские карты для Портал 2) Первая карта, по словам большинства, непроходима, поэтому делал прохождение её концовки. См. видео.
Friends ForeverCollection by Stark
In this co-operative set of tests will be reviewed by the power of friendship. How much important is friendship with the passage of these cameras, you learn right now!
TimeTOdie - Special Chamber SeriesCollection by TimeTOdie
This is a collection of my special chambers. Every chamber has at least four puzzles. Some chambers are so big that they are seperated into two parts. Have fun!
Pure IntellectCollection by Ultiman NSE
https://www.dropbox.com/s/5ji7kvprav9mc3p/pilogo.png?raw=1 Welcome to the Pure Intellect Saga. GLaDOS has sent you (as the clever test subject Chell) into the bowels of Aperture as a way to dispose of you. Staggering your way thro...