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Dark ScienceCollection by FQ
FQ HERE. Yes we are presenting Black Mesa(NOT ANOYING COMPANIE) Science the newest science of science. I will explain it to ya. This test chambers are made for dieing. The new test subject knows more about the map if it die. But we hate Black Mesa much ,so
problem solving folderCollection by 战神
Toad testCollection by Toad
Série de test simple crée par Toad1750.
Missle AnusCollection by PolarBear
It's just stuff
Mevious's puzzlesCollection by Dekarflamon
Just like the name.
I recommend! :DCollection by Formenis
Just a collection with the best COOP maps i played in portal
|-SUPER MARIO PORTAL World 1-|Collection by JH - Hylian Gamer
Oh no Princess Cube (The princess companion cube) has been captured. Try to save her as her kingdom crumbles. Run through tons of differnet worlds to find her hidden away. Avoid the evil turrets trying to stop you from reaching your goal. Exit the castle a
Fly Of The FutureCollection by DamienTheValkyrie
Creative Futures presents new single testing course! You'll have so much fun in 30 momentum and flings chambers!!!!! You'll have journey in 21 regular chambers and 9 Sixense Bonus chambers (required also Rszer Hydra and Sixense MotionPack DLC). ATTENTION!
amazingCollection by Nik :D
M_testsCollection by Anna
Who Needs Portal Guns When You Have Science:Collection by Big Steve
This is a Collection of test chambers that do not require the use of a portal gun, just pyshics and gravity. this is my first map making project for portal. i do not want trolls to leave bad reviews, so if your a troll... back off imediatly or i will flood
Remixed MapsCollection by wildgoosespeeder
These are maps I remixed where, most typically, I found an interesting exploit or alternate set of steps in other people's maps and reworked the map to require those alternate steps and remove the originally required steps. The original maps my maps are
Pneumatic Diversity Vent PuzzlesCollection by wildgoosespeeder
Lost potential that fans found other uses for! Good maps, not just any map that features them.
the world portal collection.Collection by duboiszt
this is the collection of world portal levels. these levels may look like you are going into the future or the past or they may make you feel like you have switched gravity to a diffrent side of the room.
ur a hoeCollection by daisee
ur a hooooooooooooe wtf
Small Claustrophobic SpacesCollection by Radioactive0wl
Little air, and little space. All unique maps except one which is a smaller version of another. They all have one thing in common, they use 3 or less blocks. Some puzzles are simple, some not. Enjoy. 0wl
Portal 2 mapsCollection by Elrasta33
Portal Pro 2Collection by PixelPerfect
This is a sequel to Portal Pro. One of Mevious's Portal Projects.