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Turtle Labarotorys!Collection by Limes
Some Turtles From Earth #44444 Defeated The Sentiant Cloud And Took Over Earth #1 And Now Owns Aputure Science... Its Up To Survive The Turtles Test Chambers!
Weekly ChallengesCollection by Firedog_Alpha
The Educational Testing Initiative CollectionCollection by Badass370
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 [IM] 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
Single EscapeCollection by Elovan
(Requires BEEmod to play) A series of five maps dedicated to puzzles using a single portal gun and telling the story of a test subject trying to escape from the facility. If anyone would be interested in taking these maps and fleshing them out in Ham
MisdirectionCollection by Toby Schwartz
This is a ongoing collection of puzzles designed to make you think about what is necessary and what is extraneous in each level. Some are complex and some devilishly simple. The release of the first two levels occured on June 16, 2013. More levels will
Welcome Back - bonus mapsCollection by H4mmerPerson
Bonus maps for Welcome Back: http://www.moddb.com/mods/welcome-back. Thanks to ScottOfNorth for the original concepts for these maps.
PanelsCollection by Massada
All panel chambers.
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
Bisqwit's difficult puzzlesCollection by Bisqwit
Portal 2 puzzles that either require some serious thinking or rely on difficult maneuvers to complete.
Bisqwit's glitch-dependent puzzlesCollection by Bisqwit
Puzzles that you must know and use a glitch to solve.
Bisqwit's coop puzzlesCollection by Bisqwit
Bisqwit's puzzles with custom visualsCollection by Bisqwit
Puzzles with Styles MOD used.
jjCollection by Junior_Baxter
Primary Colour [Original]Collection by Nutella Swan
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 jmfpayette
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 C A N C E R - C H A N
These are my first test chambers
Twirl & DerpsterCollection by xXdank_memesXx
Designed For DangerCollection by piguyperson
CompanionCollection by piedpipr314
This set of levels, you keep the companion cube. Toss it in the funnel at the end of the level, and the next level will deliver it via another funnel. It uses several items off beemod 2. Some of these levels also have some easter eggs.
Kal's Kollection of Kool LevelsCollection by _Kalapeno
Yeah, I'm just going to put a bunch of random levels that I think are amusing in this pile over here. That pile over there? Thats nothing... Just levels that suck utter shit. (Not all levels outside of this collection are utter shit.)
The Workshop Adventures in Portal 2 Collection...Collection by KingIsaacLinksr
These are all the puzzles that UKGareth316 and KingIsaacLinksr have played and uploaded to our respective channels. Enjoy! King's Video Collection Playlist: http://www.youtube.com/playlist?list=PLNshVYBDrnPLYW_0sCNDPTB0lhUpjRnyn&feature=mh_lolz UKGare
A Simple Gap...Collection by KubeKing
-Do you play Portal 2? -Do you like toxic goo? -Do you like puzzles that have you navigate over toxic goo, manipulating lasers, fizzlers, light bridges, panels, excursion funnels, and other neat stuff? -Finally, do you want these questions to end so you
lockerCollection by The Indominus Rex
playCollection by tjbohn
Thinking With CubesCollection by Gelter
A collection of all the Thinking With Cubes maps that I have made.
MineCollection by tN|Obsidien
EinzeltestCollection by Zuluflor