Portal 2 Single Player / Coop

Talk about the game, theories, how to get the achievements and beat the challenge maps, and anything related to Portal 2 Single Player / Coop. Caution: Spoilers abound!

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Portal 3 - Fanmade Edition - Looking for Moders!
by soniccore · Nov 06, 2011
76 Replies · 28,502 Views
Last post by portalmario1
Nov 19, 2012
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Portal 2 Randomly Crashes With Workshop Maps?
by wildgoosespeeder · Nov 04, 2012
5 Replies · 3,922 Views
Last post by wildgoosespeeder
Nov 06, 2012
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Turn Off Goo Reflection?
by wildgoosespeeder · Sep 06, 2012
17 Replies · 7,323 Views
Last post by wildgoosespeeder
Oct 26, 2012
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Playtesters Wanted for The Shadows of Time
by FelixGriffin · Oct 25, 2012
5 Replies · 1,885 Views
Last post by FelixGriffin
Oct 25, 2012
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portal 2 thinking it's only 127 mb
by Lpfreaky90 · Oct 23, 2012
2 Replies · 1,937 Views
Last post by ChickenMobile
Oct 24, 2012
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Co-op Partner Needed For Youtube Vidz
by masonlikestrains · Oct 07, 2012
1 Replies · 1,666 Views
Last post by Lpfreaky90
Oct 07, 2012
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Some problems with: ED_Alloc: no free edicts
by r1corix · Oct 03, 2012
7 Replies · 4,119 Views
Last post by Lpfreaky90
Oct 05, 2012
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New contest
by GLaDOS CUBE · Sep 27, 2012
2 Replies · 1,681 Views
Last post by ChickenMobile
Sep 27, 2012
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Mapping Competition by MyApertureInnovations
by ChickenMobile · Sep 25, 2012
4 Replies · 2,227 Views
Last post by Habzs
Sep 25, 2012
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Chrome Aperture
by SpAM_CAN · Sep 05, 2012
6 Replies · 5,257 Views
Last post by FelixGriffin
Sep 22, 2012
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Looking for someone to play coop with...
by rudirudolf · Sep 22, 2012
1 Replies · 1,556 Views
Last post by Lpfreaky90
Sep 22, 2012
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75% OFF Portal 2 Coupon to give as a gift
by josepezdj · Sep 04, 2012
9 Replies · 3,683 Views
Last post by josepezdj
Sep 16, 2012
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Odd visual glitch
by Shane · Sep 06, 2012
1 Replies · 1,451 Views
Last post by portal2tenacious
Sep 06, 2012
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Did not recieve 75% off voucher :(
by YM_Industries · Aug 17, 2012
22 Replies · 8,278 Views
Last post by portal2tenacious
Aug 29, 2012
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I need maps to speedrun because speedrunning is boring
by tanger2b · Aug 15, 2012
11 Replies · 4,745 Views
Last post by MasterLagger
Aug 28, 2012
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Steamcommunity map pack
by chabon333 · Aug 20, 2012
19 Replies · 7,114 Views
Last post by wrathofmobius
Aug 25, 2012
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WTF fling
by portal2tenacious · Aug 22, 2012
14 Replies · 5,173 Views
Last post by portal2tenacious
Aug 23, 2012
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console issue
by meteoros · Aug 17, 2012
2 Replies · 1,649 Views
Last post by Alexander Bell
Aug 17, 2012
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Portal 2 gets STUCK on this "thumbs up/thumbs down" menu.
by eatchocolate · Aug 17, 2012
4 Replies · 15,342 Views
Last post by Alexander Bell
Aug 17, 2012
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Coop PTI maps ( a request )
by novaspace · Aug 07, 2012
5 Replies · 2,244 Views
Last post by Alexander Bell
Aug 09, 2012