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The Educational Testing Initiative CollectionCollection by Bye
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 Spark
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 cancurchan
These are my first test chambers
Series 1 - Test Chambers by JetronicCollection by Relâmpago Marquinhos
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.
Your In jailCollection by Portal 2 GLaDOS
Your In space jail You must Excape! but how???
Matt the Brony's Test ChambersCollection by dongerdude
I made some Test Chambers, play them
My CoopCollection by <NO_NAME>
My cooperative maps to Portal 2.
The 'Key' Challenge SeriesCollection by Jazzyboy
"Greetings, test subject. We have recently initiated the 'Key' Challenge. This is a new series of Aperture-developed challenges. These challenges were designed with you in mind. More specifically, they were designed to manipulate you and then kill
The Aperture ZoneCollection by Herbabotomusfilms
"you unlock this door to a key of imagiation beyond it is another dimention A dimension of sound A dimension of sight A dimension of mind your moveing into a land of both shadow and substance of things and ideas you just crossted over into.... The A
Entry-Level ChambersCollection by The Lil' Orca
Nothing too special; just my first collection of my first attempts of making test chambers. They are not too difficult and I am not fully satisfied with them, but I shall continue to experiment in making new chambers with better challenges.
Perpetual CorridorsCollection by Skyferret
A collection of puzzles based on corridors. These could range from small corridors like hallways leading somewhere like other chambers, or one large corridor divided into sections.
testCollection by stremfighter
love2scoot workshopCollection by love2scoot
My varied exploits with the Portal 2 level editor
Australiumfish's Timing Tests.Collection by Australiumfish
A collection of my Time-based challenges for people who want a challenge that dont require excessive amounts of logic. Faith Plates, Lasers, Light Bridges, Excursion Funnels (sort of), anything that can have a time challenge made of it, has been done he
The Juggler ChambersCollection by
You have to use collisions and skill to complete these maps #F4F
Zep's collectionCollection by TeyoOtter
This collection will generally contain portal 2 maps I make in the new editor. There is a slight chance it will temporarly contain a map made by someone else. It won't be there forever but I am pretty sure steam tells you who made the map so I might just l
ASETeC - Aperture Science Extended Testing CourseCollection by Shots of a Bodily Nature
Additional testing courses, easy to medium difficulty, incorporating the unique element of interaction with portions of previous test chambers. This testing initiative is know as the ASETeC, or Aperture Science Extended Testing Course. (WIP collection.
rcmero's MazesCollection by [EdBoy] rcmero
This collection includes all my test chambers created with the help of the Lab Rat program, which can be found here: http://www.kyleschouviller.com/labrat/ I recommend using this program if you need a first aid when creating chambers, as it creates a
Umbrella LaboratoriesCollection by Maghetto
Il Progetto Umbrella Laboratories fà parte di una collezione di livelli che raggryppa tutte i test Umbrella!
Aperture Science SP FacilityCollection by Kenji
This is my first collection of maps made by me. Hope you enjoy them.
The Cognitive GauntletCollection by MLightningW
I proudly present to you a series of tests which I call: "The Cognitive Gauntlet". Some of these tests were designed to be an extreme challenge, while others were designed for fun, or even for a slight challenge. A helpful hint I can give you in these test
Beautiful LasersCollection by Zapperlott
This collection is all about tricky laser puzzles - I will add more maps as i make them Enjoy! Rate&Comment Thanks for playing
Mini test collectionCollection by Stubbsy
This is a collection with no story, so you could call it independent. It is made for those who get bored and want a little something something! The tests aren't perfect and glamorus, so don't hatw on that! In fact don't hate at all! :D Remember - if
Running Trials: A Series of Infuriating Timed Jumping Puzzles with an Edgeless Safety CubeCollection by Crinja
So you think you're all so high and mighty, being able to defeat my other test chambers so effortlessly. All I wanted was to create a sustained testing environment that took more than half an hour to get through. Well ol' crazy scientist Crinja hasn't stop