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AppendicesCollection by Solid Jim
These maps aren't particularly lengthy when you know what you're doing, but you may find yourself needing to re-examine the way some testing elements interact. It is effectively a "best-of" selection of my test chambers (in my opinion; yours may of cou...
EntropyCollection by Solid Jim
Congratulations, test subject! You have been selected to participate in mandatory non-automated scheduled maintenance of this test chamber. Human-assisted monitoring is an important facet of the scheduled maintenance program: although each chamber has bui...
Co-op Portal2 #1Collection by XTECH [XGS]
Some of my first Portal 2 Co-op maps made in Portal 2
GelocityCollection by Tŏχic
GelekinesisCollection by Clericopter
A trio of test chambers focusing on the intricate mating rituals between gel and excursion funnels.
Portal MapsCollection by kinky
Custom test chambers. Crafted by me. For SCIENCE!
Think With Fewer PortalsCollection by DeWayne Mann
All maps are designed to use a minimal amount of portals. Most of them can be done with no portals at all; a few don't even allow portals.
Test Chambers by Ric666Collection by Ric666
A collection of my test chambers. Some may be a bit long but hopefully fun. Hope you enjoy & please leave any comments below or at this topic: http://forums.steampowered.com/forums/showthread.php?t=2701865 Thx :)
Wheatley LaboratoriesCollection by Vilka
FesTech CollectionCollection by Fesevoa
Test Chambers designed and built by the FesTech Corporation(c) 2077.
Carol's Co-op ConundrumsCollection by carol
A collection of my co-op maps.More will be added as I make them so please sfollow me, ubscribe and make the list a favourite to receive updates. "Cage and Stair" - a simple idea but timers are used to force coordintaed play and there is an awkward (AKA...
PeTI Test Cycle 01: Handheld Portal DeviceCollection by TestSubject069
Hello [Subject Name Here], And welcome to the Aperture Science Perpetual Testing Initiative. You have been self-selected by our team to engage in the most thrilling contribution to Science in the entire history of the multiverse! This collection of supre...
PeTI Test Cycle 02: Thermal Discouragement BeamCollection by TestSubject069
Dear [Subject Name Here], Hello again! This is Cave Johnson from Earth 1, and man! Greg's multiple universe theorem is moving along perfectly! Well, perfectly for us at least, who cares what's going on at your end. The point is that you've passed through...
PeTI Test Cycle 03: Military Grade Sentry TurretsCollection by TestSubject069
Dear [Subject Name Here], Greetings non-Earth 1-lings! We've decided that your current level of testing gusto isn't spiffy enough so we've decided to throw in our Military Grade Sentry Turrets into the mix. That's right! You lucky bastards get to tango w...
PeTI Test Cycle 04: Aerial Faith PlateCollection by TestSubject069
Dear [Subject Name Here], Oh, it's you. Good for you! I've got bigger problems than having to deal with some monstrous nightmare from the fifth die-mension here! Now, if you're in the mood to score some brownie points with the ole' boss down on Earth 1 I...
PeTI Test Cycle 05: Material Emancipation GrillCollection by TestSubject069
Dear [Subject Name Here], Alright test subject, I've got good news and bad news. The good news is that if you've got superflous organs like extra lungs, hearts, livers, or other things like that, we've got an incredible program called the Self-Esteem Pro...
PeTI Test Cycle 06: Excursion FunnelCollection by TestSubject069
Dear [Subject Name Here], So the way this multiversethingamajig works is that in some universes gravity pulls people onto their ceilings or where Sentry Turrets shoot lolipops. Having said that, on Earth Prime, Asbestos is harmless. Now we may have gotte...
Aperture Laboratories - Multiverse Encounters - Dominion DivisionCollection by Arron Dominion
With the introduction of the Multiverse, different divisions have popped up. The Dominion Division is one of them, training subjects that partake in their testing program with the skills they will need for future encounters with the mechanics of testing....
The Tobbii CampaignCollection by Andrea
All of the maps I've made for Portal 2, play them and pretend there's a story where I force you to test things without any purpose... Hooray!
Simple TestsCollection by Spike
A set of simple test chambers divided into volumes. There are currently 3 volumnes available with a total test chamber count of 21.
Hellhownd's Portal 2 FunCollection by Hellhownd
A collection of test chambers I have created for you!
My maps for Portal 2.Collection by FMYury
Testchambers for Portal 2 :)
Thinking With PortalsCollection by Rexion
Just some random maps to mess around in Portal 2! Please enjoy.
AlternativityCollection by LOZEMO76
When Aperture's Mainframe goes faulty, Aperture's CEO, Cave Johnson gets frustrated. When the mainframe goes faulty, testing elements stop working. Soon Cave Johnson finds out that Black Mesa has been stealing Aperture's Energy. Then Black Mesa wants to s...
Go TeamworkCollection by Trogdor the Burninator
Icewinds Chambers vol. 1Collection by Hofschranzer
These is my first small chamber-pack. Have fun!
A Party of Four.Collection by SirArthur
Cubes are fun. companion cubes are a piece of lovely fun. But friends, are simply.... quite better than cubes. (Not companion cubes of course, just standards cubes.) This is not just a simple collection of chambers. These chambers were made as a gi...
Shade - Mindless EntertainmentCollection by Shade
This pack contains four maps that are simple but fun. Three are normal Portal chambers, and one is exploring the engine (inspired by Pechinko). I hope you like them :- )
The ZRAY CollectionCollection by Raptor42
All the maps made by Group ZRAY http://steamcommunity.com/groups/z-ray