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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When do you think Co-Op takes place?
by Godzilla (Lazars) · Jul 08, 2011
8 Replies · 2,561 Views
Last post by NuclearDuckie
Jul 09, 2011
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Magical Gaming Experience
by Xeyide · Jul 04, 2011
4 Replies · 1,742 Views
Last post by ChickenMobile
Jul 08, 2011
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Crashing issue (coop)
by Kiserian · Jul 06, 2011
2 Replies · 3,778 Views
Last post by Hober
Jul 07, 2011
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Professor Portal Trophy/Achievement
by P-Body46 · Jun 28, 2011
5 Replies · 1,963 Views
Last post by kwp21 pitts
Jul 04, 2011
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portal 2 co op, custom maps, sv_cheats
by ilikeapples · Jun 30, 2011
8 Replies · 8,858 Views
Last post by Darkylight
Jul 02, 2011
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Portal 2 Custom Map Loader
by kyle273 · Jun 19, 2011
8 Replies · 4,114 Views
Last post by KenJeKenny!?
Jun 30, 2011
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Portal 2 Co-op Vehicle
by onyx86 · Jun 04, 2011
16 Replies · 6,513 Views
Last post by gavsta
Jun 30, 2011
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An Extra Monitor for Break TV Achievement
by MasterLagger · Jun 29, 2011
3 Replies · 1,692 Views
Last post by MasterLagger
Jun 29, 2011
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Musical Companion Cube?
by MasterLagger · Jun 27, 2011
5 Replies · 2,341 Views
Last post by MasterLagger
Jun 29, 2011
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Need a specific quote of GLADoS'
by Leoden7 · Jun 28, 2011
3 Replies · 2,341 Views
Last post by Leoden7
Jun 29, 2011
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Help with professor Portal Trophy!
by P-Body46 · Jun 24, 2011
3 Replies · 1,968 Views
Last post by P-Body46
Jun 25, 2011
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How can I record a co-op session?
by Tomalla · Jun 23, 2011
14 Replies · 5,626 Views
Last post by Tomalla
Jun 23, 2011
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how do they do it?
by RageCompeX · Jun 21, 2011
2 Replies · 1,698 Views
Last post by Darkylight
Jun 21, 2011
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Portal 2 is offensive to orphans
by Jomonay · May 18, 2011
27 Replies · 10,043 Views
Last post by kwp21 pitts
Jun 21, 2011
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Map Request
by Thinkingwithreddit · Jun 13, 2011
34 Replies · 9,019 Views
Last post by ChickenMobile
Jun 21, 2011
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Is this possible ?
by Cnone · Jun 16, 2011
14 Replies · 4,687 Views
Last post by WinstonSmith
Jun 19, 2011
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What is your favorite map?
by Thinkingwithreddit · Jun 10, 2011
5 Replies · 1,939 Views
Last post by The Irate Pirate
Jun 18, 2011
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No Voices?
by Shounenbat · Jun 06, 2011
3 Replies · 2,128 Views
Last post by MasterLagger
Jun 16, 2011
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SP maps with Cube Throwing
by schrobotindisguise · Jun 05, 2011
6 Replies · 2,383 Views
Last post by schrobotindisguise
Jun 15, 2011
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Co-op CTC Capture the Cube
by MasterLagger · Jun 09, 2011
11 Replies · 4,439 Views
Last post by Idolon
Jun 14, 2011