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!

Topics
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My Theory on Turrets
by Pipeline · Mar 27, 2012
28 Replies · 9,036 Views
Last post by iWork925
Apr 23, 2012
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Problems with Portal 2 after sleep or hibernation mode.
by Dom44 · Mar 27, 2012
6 Replies · 2,217 Views
Last post by dinnesch
Apr 21, 2012
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Portal 2 Wallpaper / Rainmeter Skin
by llamalords · Apr 17, 2012
0 Replies · 4,316 Views
No replies
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transitions?
by Heavyduty · Apr 10, 2012
2 Replies · 1,352 Views
Last post by Lpfreaky90
Apr 10, 2012
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potal 2 crashes
by jc3833 · Apr 06, 2012
2 Replies · 1,295 Views
Last post by Lpfreaky90
Apr 06, 2012
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Should I release...?
by ChickenMobile · Mar 30, 2012
11 Replies · 3,415 Views
Last post by MonkeyTouche
Apr 04, 2012
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Any ideas for co-op?
by audiotrash · Mar 20, 2012
3 Replies · 2,114 Views
Last post by Lpfreaky90
Apr 03, 2012
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Audio but no video?
by Gamer_Girl100 · Apr 02, 2012
1 Replies · 1,399 Views
Last post by Lpfreaky90
Apr 02, 2012
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Portal Mapping Help: Map Crashes and Portal Gun Default
by bankston_editor · Mar 30, 2012
5 Replies · 2,155 Views
Last post by FourthReaper
Mar 31, 2012
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Easter Egg Discovered!
by Pipeline · Mar 16, 2012
9 Replies · 2,654 Views
Last post by MasterLagger
Mar 28, 2012
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Black textures in co-op
by MrWalton · Mar 27, 2012
4 Replies · 2,854 Views
Last post by MrWalton
Mar 27, 2012
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Gel spreading
by protoborg · Mar 26, 2012
4 Replies · 1,425 Views
Last post by protoborg
Mar 26, 2012
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mod doesn't work
by D3M!5 · Mar 18, 2012
8 Replies · 2,634 Views
Last post by Lpfreaky90
Mar 26, 2012
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Portal 1 Level 4 Ported into Portal 2.
by NoamGM · Mar 17, 2012
3 Replies · 1,559 Views
Last post by Lpfreaky90
Mar 18, 2012
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The making of portal 2 - Writers of valve
by Arnar105 · Mar 15, 2012
4 Replies · 1,517 Views
Last post by Kaleido
Mar 15, 2012
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...FrankenTurret Noises?
by Pipeline · Mar 10, 2012
8 Replies · 2,711 Views
Last post by Pipeline
Mar 11, 2012
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Look for a Coop partner
by DocDar · Jan 22, 2012
13 Replies · 4,177 Views
Last post by WinstonSmith
Mar 10, 2012
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Speedrunning Custom Maps!
by adzicents · Feb 26, 2012
0 Replies · 1,178 Views
No replies
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Ruien's Favorite Maps
by Ruien · Feb 26, 2012
3 Replies · 1,565 Views
Last post by chimera201
Feb 26, 2012
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How to re-texture my portal gun and put my name on it?
by Makadi · Feb 26, 2012
1 Replies · 1,256 Views
Last post by ChickenMobile
Feb 26, 2012