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Challenging MapsCollection by [ASBO] Adam
A collection of highly challenging maps, use every trick in the book!
BetaSpark.UK Portal 2 Level(s)Collection by BetaSparkUK
A series of levels created by BetaSparkUK for the BetaSpark.UK community to test out. This map is one of many maps released by BetaSparkUK! Why not subscribe to all future releases and much more? Head to his profile and click subscribe under Workshop item...
The Slightly Different ChambersCollection by Carnage
Each Chamber Has A Different Difficulty. No Two Chambers Are The Same
re:Escape From ApertureCollection by Anachronistic ALLOS
A remake of my classic series Escape From Aperture, made to look moreso proper than it did before. You are a test subject named Mark Bendest, and you must Escape from Aperture! I spent a long time remaking the Escape from Aperture series as my las...
J67 Laboratories TestchambersCollection by J67Wolf
This is a collection of all of my testchambers that I made.
portal 2 coop collectionCollection by Xenom
Byte CollectionCollection by Turret Cube
Volume 3: ForgottenCollection by ChristianG
Beneath the ruins is life. Not real life, of course. That hasn't been in Aperture Science since Chell left the facility. Turret life, robot life, element life! That's the life I'm talking about. The following chambers may have music attached to the beginn...
AlphanumerisismCollection by Paladon
My collection of test chambers, from A1-??. Have fun