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GelekinesisCollection by: Clericopter
A trio of test chambers focusing on the intricate mating rituals between gel and excursion funnels.
Portal MapsCollection by: USApache1080
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_RUS
FesTech CollectionCollection by: Fesevoa
Test Chambers designed and built by the FesTech Corporation(c) 2077.
WatchingCollection by: Australium Pyro
Well, someone's watching you and giving you advice for the test.
Stage 2Collection by: Alioth
This collection contains more pretentious levels. The solution is hidden and you have to be tricky to find it. Enjoy. Diese Kollektion enthält schon anspruchsvollere Level. Die Lösung ist meist versteckt und du must trickreich sein, um sie zu ...
Aperture Science -The new Testing CoreCollection by: Soundstorm
Glados is in standby for a hardware service and the new alternativ KI Core is online. Continuing testing, science is important! SYSTEM CRASH: PLEASE READ THE HEX LOG FILE: 46 6f 75 6e 64 20 47 6c 61 64 6f 73 20 43 6f 72 65 20 44 41 54 41 42 41 53 4...