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Map Creator ToolsCollection by Geneosis
I will make here a list of the demo/showcase maps I made and I found. This collection will only contain maps showing mechanisms useful for map creators and usually hidden to the player. Feel free to use them in your own maps! Guide : http://steamcommuni
DaMaGepy's mapsCollection by DaMaGepy
Medium-difficulty fun maps with special puzzle elements and custom graphic/music. I'm unemployed at the moment, this also means (luckily?) that I have all the time in the world to make maps, feel free to PayPal-DONATE any amount if you like them and want
PenroseCollection by Stratos
The Penrose Collection features an ever expanding series of maps with a focus on the Surface Division Field. That fancy invention is a new testing element the lab boys at Aperture Science South developed to conjure mid-air portals that allow two-way access
PIXELS are still aliveCollection by At0mium
Pixels and problems. Those maps are based on reflexion and skill. I hope that you'll enjoy that! --------------------------------------------------------------------------------------------------- Bonjour à vous, âmes en quête de défi! Vous cher
Diversity MappackCollection by ColorCubeMan
A mappack containing 4 tests in which the player will solve some GLaDOS chambers, escape from her facility and explore the old Aperture Science.
DilapidationCollection by LoneWolf2056
A 7 part series of maps in the destroyed/overgrown style, explore and puzzle in the ruins of the Aperture Laboratories as you try to escape. Puzzles will be of mostly Medium/Hard difficulty, no ninja moves required. It should take around 2-3 hours to compl
Aperture's TAG: The Paint Gun Testing InnitiativeCollection by Motanum
Expirience a re-imagination of Tag: The Power of Paint in the world of Aperture Science! This Map-Pack is NOT part of the DLC storyline and does NOT include Cave's lines. NEWS! Please vote for this in greenlight! We have come a long way since this wa
UndergroundCollection by BEN 77
Gelocity Time TrialCollection by Radix
A collection of Portal 2 race maps. The tracks are covered with orange speed gel and your task is to reach the finish line in a limited time.
Portal 2 - Left4Dead EditionCollection by Stagger Lee
A ongoing collection of L4D inspired puzzle chambers. Anyone who has played Left4Dead or Left4Dead2 will tell you that they often have to carry their team. It is no different in here. Work with your teammates in your struggle to make it to the safehou
Portal Era : The AdventureCollection by La Petite Magicienne
Hammer Adventure Final Version -- Medium Difficulty -- 1h - 2h - Autosave =============== Story =============== Place : Aperture Center Year : Unknown You wake up in a strange room, without portalgun. Try to escape this place and find a way to the
Sunbury ChambersCollection by BierPizzaChips
All 80 maps of the Sunbury Chambers series. The Series includes COOP and Single-Player maps. All maps having PeTI in the brackets had been created with the Ingame Editor. All maps missing the PeTI statement had been created primarily with Valve's Hammer
THE LONE FUTURE-STARTER [Collection]Collection by [P2:Abyss] Seji-Evan
WARNING If you just like solving super duper hard puzzles chances are that you will not like this mappack, i'm warning now for prevent unnecessary posts =D. [MAP 1] Now, a little backstory: You are an unknown person that was integrated in the program o
Stasis Map PackCollection by dr.Dreey
Somewhere in the bowels of Aperture, lies houndreds of test subjects, waiting for their entire life to be awaken to do some science.
Fun mapsCollection by cyron43
Maps for fun. That means they provide either no puzzles or just very easy ones.
Original Portal: Still AliveCollection by Fat Ninja Walrus
The first Portal is still alive! This collection contains all twenty courses from the first Portal, remade for Portal 2. I started working on this project the very first day they released the PETI, my goal being to recreat the original courses to the best
Left 2 TestCollection by Mr Doom
Made in Hammer. Custom files added with VIDE. Story: You are [???], one of the subjects who survived after the events of Portal. You are forced to navigate the abandoned facilites in an attempt to escape.
ElectrophobiaCollection by Mevious
Three medium to very difficult co-op testing spheres focusing on fizzlers and how they are the bane of your robot existence. No strict timing or advanced/ninja techniques are required. This was made for the 2011 Thinking With Portals Summer Mapping Compet