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Portal Single Play CollectionCollection by you stole fizzy lifting drinks
Numbios ChallengesCollection by Antee`
Numbios is waiting for challengers. Patience is bitter but its fruit is sweet...
Portal2_GamesCollection by twillb
what is thisCollection by x1372
Companions for LifeCollection by ChandlerMakesVidya
This is the collection for my Portal 2 Custom Series involving you and your friend; the Companion cube. You and her need to get through tests of increasing difficulty. Don't worry, it will never stab you...
E1craZ4life's Portal 1Collection by E1craZ4life
Remade in Portal 2's PTI level builder. With modifications to compensate for absent elements, lack of available space, or just to mix it up a little.
The Puzzle PackCollection by YoshiBobby
MAPS STILL CURRENTLY IN DEVELOPMENT! Join the Puzzle Pack Update Group! http://steamcommunity.com/groups/puzzlepack And check out some cool Puzzle Pack-related side games! http://steamcommunity.com/sharedfiles/filedetails/?id=172885025 The Puzzle
The Educational Testing Initiative CollectionCollection by ImNoOne
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
Scrap It PackCollection by Frostbyte
A collection of my Scrap It levels, wich were designed to be edited into something better...
Test Room - Portal 2Collection by Atimaster
Kolekce testovacích místností hry porál 2. Celkem bude 20 místností, z toho lehké a jiné Hardcore, snad se budou líbit a dobře se pobavíte. Collection of test rooms Portal second In total, 20 rooms, of which light and other Hardcore, maybe you will like
Just One RoomCollection by ShockFroster
This is a collection of some small chambers. No hidden doors, no extra large maps etc... ...each just one tricky room.
Classic Game CollectionCollection by ShockFroster
The classic game collection including... Portal Flipper Spaceinvaders Lemmings Memory Brainstorming meets Funmaps.
[COOP] BrainteaserCollection by DrFauli
Very difficult logic puzzles which require only thinking with portals. - no extra skills needed; - no fast timing needed; Estimated blindrun playtime is over 45 minutes per map, altough you can solve each of them within 5 to 7 minutes, if you know e
8-HARDCORE-IQCollection by xJxCZ
Cryptic Singularity CollectionCollection by allen
Cryptic Singularity is a Collection of Maps, Single and Coop. Has to be different, lacking in white spaces making it harder to put your portals. But there is always something there to help you.
ZaphCollection by Woodman
amazing itemsCollection by Deskilln
amazing puzzles race playground rolercoasters cube tricks
Zaramaja's Portal 2 Singleplayer TestsCollection by Zaramaja
All the tests I create in Portal 2 using the Community Test Chambers Test Editor will be here. You can play them in any order you like, as there isn't really a story for them. These tests will not be based on any one mechanic for a certain amount of tests,
The VaultCollection by CellarDoor96
GLaDOS: Welcome, [subject name here]. Please be advised that you may be experiencing some side effects as a result of your prolonged cryogenic stasis, but these should soon pass. If they persist for longer than 6-8 hours, please see the nearest medical p
CraftTure PackCollection by [DK] markaabo [DK]
CraftTure Maps Pack
Portal 1 in Portal 2Collection by CDanilo25
READ HERE FIRST! I tried to create the levels of Portal 1 via the in-game editor and the #BEEMOD. The Hammer was not used. I had to change a little the layer structure, due to some limitations of the editor, but the result is quite satisfactory. -
Portal 2 test chambersCollection by dreamweaver
Where I put test chambers
Maps To Play Around InCollection by Syrsly
Just a collection to amuse myself with. It features some items made by me and some items made by others.
Alucaperture ScienceCollection by I'm a Yandere in Lingerie OwO
Some Portal 2 maps I made with the in-game editor with the idea of messing the engine to an unforgivable extent. They are also unecessarily hard and cruel.
All SP LevelsCollection by Zak
chambersCollection by Ryosuke Takahashi
Portal 2 mapCollection by Dittu
Portal 2 Test ChambersCollection by Hinventon
Just Portal 2 test chambers that I have played or will play.
TeilerCollection by witchbeast39