STORE COMMUNITY ABOUT SUPPORT
test the day of doom demoCollection by WouterSmits
this is an demo campaign about testing challange i hope you like it Please play this out first map is intro test sacend the game itself i build this for the first time please forgive me if bad try to understand i build this for first time if someone
Playground mapsCollection by Velzerat
12 Angry Tests (Combined)Collection by Squid
Just All the 12 Angry Tests put Into One.
Maps That Get Download ErrorsCollection by wildgoosespeeder
I want to play these maps, but I can't due to technical reasons. These are usually 2012 maps. Sometimes I come across 2012 maps that no longer download properly. Reuploading (overwriting) fixes the issue. Once I see any of these maps in working order, I'll
Portal 3Collection by Cythen
Maps With DeficienciesCollection by wildgoosespeeder
General Information: The purpose of this collection is to showcase bad level design. It didn't originally serve this purpose. Now this collection serves a broader purpose while still serving its original purpose. This collection came into existan
Into InsanityCollection by luigiman94
GLaDOS is making test and it starts making you go insane.
Portal 2 CoopCollection by Schtandard
BAE <3Collection by Trash
puzzlesCollection by soupboy
Aperture Testing 2.0Collection by Fubuki-Poi
GLaDos has been upgraded, tests will now have more....Extreme...parts from part of the test being in pitch blackness to multiple choices prepare yourself, your mind, and your partner
The Cooperative Frustration InitiativeCollection by Mr. Holmes
The Cooperative Frustration Initiative is a co-op course designed by me, Doctor Scoot, and features puzzles of varying difficulty but generally increasing as you progress. Also, some little metal idiot "hacked" into Chamber #5's construction protocol. W
my stuffCollection by Big Forgetful
Labyrinth ProjectCollection by Niesi18
This Project is easy. Many Labyrinths for fun. It will be heavy :3 goodluck (:
kljhbnkjCollection by Blanc
Coop collectionsCollection by Zekemonster (Хрис)
tutti_frutti_gaymingCollection by Ashinatori
Mind BenderCollection by Geek2Win
this is my mind bender siris.
Mindless Chamber (series)Collection by lλmbda
The Mindless Chamber levels put together into one giant collection. (will be updated when newer chambers are completed)
2 Days From RetirementCollection by lan54321
You are working as a test subject at The Lab^Trademark. 2 days before your retirement something happens that changes the world as you know it.
Portal Stories: Mel - Advanced mapsCollection by a drunken squirrel
Remember how much trouble you had with the original levels? Still remember the solutions? Longing for new levels? Well then this is the set for you! I appreciate any feedback or recommendations for any other levels I should make harder. Oh! And a quick ti
Painting life in colorCollection by Hyakkidouran
A set of 3 maps, each one revolving around painting with a specific colored gel. Those maps are made with the in-game editor. They are failrly long but they don't feature instant death traps and you should not die if you don't go too fast. Nothing to
Weas coopCollection by (CL) Nene
aboveCollection by Paul
A Bunch of Test's (Singleplayer)Collection by SimplyComplex
Every Level in A Bunch of Tests
Android HellCollection by Kovax
Sometimes when your going thru hell, all you need is friends and family, in this case you'll need another droid. Good luck... youll need it.
portal 2Collection by Linkativity
Silta's Test Chambers.Collection by Silta
Collection of various test chambers I've put together.
icyCollection by ozbitty
A Game of High StacksCollection by Glacial Turtle
A series of levels playing with the concept of putting things on top (or below, or to the side) of other things to make other things happen. Exciting times ahead. Collection image courtesy of crashmattb: https://www.flickr.com/photos/7383636@N06/3865