Portal Single Player

Talk about the game, custom maps, how to get the achievements and beat the challenge maps, and anything related to Portal 1. Caution: Spoilers abound!

Topics
Weighted Companion Cube
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by Test Subject Apr 18, 2008 12 Replies · 5,341 Views
by pestchamber
May 10, 2008
Think you are good? Challenge yourself!
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by Anphrax Oct 15, 2007 26 Replies · 10,527 Views
by Test Subject
Apr 22, 2008
Wierd bug?
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by nightfire Apr 01, 2008 8 Replies · 2,972 Views
by Test Subject
Apr 18, 2008
Portal Magazine?
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by Bosf Feb 22, 2008 7 Replies · 3,425 Views
by SaSuK3
Apr 09, 2008
Portal - least portals
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by Jaso Apr 08, 2008 1 Replies · 1,929 Views
by rellikpd
Apr 08, 2008
Advanced Chambers Challenges
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by rellikpd Mar 20, 2008 12 Replies · 5,461 Views
by GlaD0S
Mar 30, 2008
chamber 15 - 19 seconds
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by Kingpin Mar 15, 2008 1 Replies · 1,563 Views
by Kingpin
Mar 16, 2008
Chell hasnt got teeth?
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by Bosf Feb 22, 2008 8 Replies · 3,806 Views
by Bosf
Mar 11, 2008
Test chamber 18 orientation weirdness
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by uXs Mar 09, 2008 10 Replies · 5,945 Views
by uXs
Mar 11, 2008
Chamber 15 - 20 seconds
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by Kingpin Mar 10, 2008 9 Replies · 3,275 Views
by NykO18
Mar 11, 2008
Undo a glitch
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by rellikpd Mar 06, 2008 3 Replies · 1,832 Views
by Aldéz
Mar 07, 2008
Portal Speedrun - 13:46
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by DemonStrate Feb 28, 2008 8 Replies · 3,336 Views
by sssummer
Mar 06, 2008
two commands at once?
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by Bosf Feb 28, 2008 13 Replies · 5,563 Views
by Bosf
Feb 29, 2008
Portal camera hack?
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by Bosf Feb 27, 2008 4 Replies · 2,180 Views
by Bosf
Feb 28, 2008
What does terminal Velocity mean?
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by Bosf Feb 25, 2008 14 Replies · 5,770 Views
by Bosf
Feb 26, 2008
Love GLaDOS speed run
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by Kingpin Feb 22, 2008 3 Replies · 1,993 Views
by Grax
Feb 23, 2008
Rainbow Palace by Duffedwaffe
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by Grudge Feb 21, 2008 0 Replies · 2,390 Views
No replies
What a new rig can do...
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by Kingpin Feb 13, 2008 5 Replies · 2,466 Views
by NykO18
Feb 17, 2008
Thinking with portals: IRL
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by msleeper Oct 19, 2007 8 Replies · 3,322 Views
by frozenose
Feb 10, 2008
Portal Camera Jumping Bug
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by DeviMon Jan 09, 2008 3 Replies · 2,272 Views
by Phr³³k
Feb 05, 2008