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Think TankCollection by The Harvester
Think Tank. Yes that is what you should be if want a great challange. Try to find you way out to the last map and you will eventually fight against my Turret Slave Army. Be careful they are dangerous.
Omega TestingCollection by (TMS)Ulquiorra Cifer
the Omega Testing track has officially arrived today with 20 dangerous tests Other Testing tracks Alpha Testing-coming soon will have 15 tests Beta Testing-Gonna begin construction after Omega Mad Testing-dont know if this one will come likely after ...
Easier Puzzle MapsCollection by KennKong
I prefer to play difficult maps, but maybe you don't. And just because I think a map is easy, doesn't mean I think it isn't good. The maps you find here are relatively easier than my "Hardest Puzzle Maps", and many should be easy for almost anyone, bu...
New EraCollection by [iRON] DoktorDoraro
A New Era Of Testing
Multicube 1.0Collection by ☺
Quick small mapsCollection by Chair
Small quick tests
from the eyes of the creatorCollection by Judge
My first creations. Just a few levels I thought I'd make to test your skills. If you like them please comment for more levels. Give me some ideas too.
Good Maps I'd recommendCollection by .sheridan .vespo
Just some maps I have played and would like to remember. This collection is mainly for myself, but I thought, I would make it public, so everyone can have some quality maps to play.
Apeture testingCollection by progamer187
play in single player then ecape then save testing wit your favorite b0ts
Tests Volume 3Collection 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 Vol.2 http://steamcommunity.com/sharedfiles/filedetails/?id=71840970
Aperture Sports 2012: Basketball CollectionCollection by Croft
A collection of maps depicting the popular sport 'Basketball' and using portal's mechanics recreating that game
Escape!Collection by hs_doubbing
You need to escape from the prison. The level called "Prison" is the first part of the series.
No escapeCollection by e-wok345
I was wondering what if glaDOS didn't let Chell go? This collection story thingy shows what happens. Note: if Cave says anything, ignore him.
Test Chambers 1-10Collection by Sage
Alright, 1-10. Simple, right?
Run & JumpCollection by IsterX
Dans les salles de la serie "Run & Jump" il faudra utiliser les diferents gels pour finir la dis salle.
Azul, naranja y blanco.Collection by Phyross
Three chambers where you will have to use the properties of the three gels in the game. Tres cámaras en las que tendrás que usar las propiedades de los tres geles del juego.
Boing !!Collection by StIg
A collection of my puzzles. All are of medium difficulty and all use Blue Gel at some point or another, hence the name Boing! Please provide feedback, they've all been playtested, but anything wrong, let me know. Never stop testing...
The Lovely Test ChamberCollection by wubbzy301
BSItestsCollection by OnionKiller
Markia Testing Initiative ( MTI )Collection by Nathan Walkers
Your Marianne, brother of the director, You tried to see me but YOU ACCIDENTALY GO INTO THE CHAMBERS!!! Olso, He was acualy at the end chamber. Go through the chambers and have fun!
Aperture Science Facile Testing FacilityCollection by Meowmaid
A collection of test chambers by Dylia, queen of the easiest test chambers known to existance.
Darks Little PuzzlesCollection by ayy lmao
Puzzles made by me, just out of fun. But they do honestly feel like puzzles.
Mind Maze CollectionCollection by Taurael
Part I * theme: defying gravity * final version online Part II * theme: jumping * still under construction Part III * theme: lasers and cubes * final version uploaded Part IV * coming soon Have fun! If you find any bugs or glitches, fe...
The Frankencube HouseCollection by atmaSurge
This house calls to me. Amidst the circuitry, lasers, and high-technology within, there is a dark and ancient secret. A secret someone wanted to keep behind bars. Haha, nah. It's just a house, or something! Let's walk around, push some buttons, and ...
For Lack of A Better Name: The InnovationCollection by ҐⱪɑƦσS
The Collection of all the F.L.A.B.N (For Lack of A Better Name) Maps
The Seven TrollsCollection by jasonm144
7 maps of fustration, but completable. Can you finish them all?
Kw’s Portal 2 Multi-ChallengesCollection by Kwpolska
This is a bunch of maps with many challenges in it, every one different from each other.
Too EasyCollection by skunktronix
A series of test chambers that appear easy at first glance, but there's much more to them than you'd expect. Try the obvious solution first, and see what happens.
The End Of The BeginningCollection by Soulary
This collection will only be interesting if you find it interesting, and as such i hope that you find it interesting! :D
Don't Make Lemonade!'s Simple CollectionCollection by Rag33
A collection Of Simple Maps By Don't Make Lemonade!