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Portal Single Player

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Easter Egg - DEBUNKED (Spoilers!)By msleeper · 20 Answers · 7,194 ViewsLast post: 13 years ago · youme
Valve should Balkanize the challenge map AchievementsBy Crooked Paul · 16 Answers · 5,687 ViewsLast post: 13 years ago · Hyakkidouran
13 years ago
Hyakkidouran
NEW BUG Discovery or whatever you want to call it(Glitch)!!By sKoToSa9 Answers · 2,872 ViewsLast post: 13 years ago · sKoToSa
Bug discoveredBy VolumetricSteve5 Answers · 1,943 ViewsLast post: 13 years ago · DeviMon
Portal bug how to transport items from chamber 16 to 17By DeviMon0 Answers · 955 ViewsLast post: 13 years ago · DeviMon
screenshot from discord_23By iamafractal6 Answers · 2,363 ViewsLast post: 13 years ago · iamafractal
13 years ago
iamafractal
Unlimited cubes Test Chamber 13By krikkit5 Answers · 2,352 ViewsLast post: 13 years ago · krikkit
No Story by Theprogram00By msleeper4 Answers · 2,156 ViewsLast post: 13 years ago · msleeper
13 years ago
msleeper
Speed run 17:50 completionBy Kingpin0 Answers · 1,078 ViewsLast post: 13 years ago · Kingpin
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VG Cats does it AGAIN!By espen1803 Answers · 1,770 ViewsLast post: 13 years ago · Hober
Challenge 17 with NO PortalsBy DiddyKong42 · 10 Answers · 3,893 ViewsLast post: 13 years ago · volt
Collectors EditionBy espen180 · 12 Answers · 4,202 ViewsLast post: 13 years ago · Wroth
Glados killed with turretBy Omgee7 Answers · 2,701 ViewsLast post: 13 years ago · Wroth
Timeline for Portal? [SPOILERS]By f0rkz · 59 Answers · 17,975 ViewsLast post: 13 years ago · MrTwoVideoCards
13 years ago
MrTwoVideoCards
Creative thinking... (Spoiler)By Robinson · 34 Answers · 9,236 ViewsLast post: 13 years ago · MrTwoVideoCards
13 years ago
MrTwoVideoCards
fastest timesBy mikebolt · 14 Answers · 4,749 ViewsLast post: 13 years ago · Player1
Aperture Discord/Test Chamber 23 by KorjagunBy MrTwoVideoCards0 Answers · 1,609 ViewsLast post: 13 years ago · MrTwoVideoCards
13 years ago
MrTwoVideoCards
Logic Portals -Chamber 00 to 03 by HurricaaaneBy MrTwoVideoCards · 11 Answers · 5,134 ViewsLast post: 13 years ago · MrTwoVideoCards
13 years ago
MrTwoVideoCards
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Final Boss Speed RunBy Wroth · 11 Answers · 3,889 ViewsLast post: 13 years ago · Wroth
Portal - Only 20 minutes longBy espen1802 Answers · 1,504 ViewsLast post: 13 years ago · Yusayoh