Top 100 Portal Videos With The Longest Duration by s4videosTop 100 » 200 » 300 » 400 » 500Video TitleDurationCategoryGame1.Dom Plays Portal Custom Maps - Hetzchase Nailway ep 4 "Alternate Path"31:14Let's PlayPortal 2.Dom Plays Portal Custom Maps - Hetzchase Nailway ep 1 "G String Man"24:09Let's PlayPortal 3.Dom Plays Portal Custom Maps - Hetzchase Nailway ep 3 "Error and Error"23:35Let's PlayPortal 4.Dom Plays Portal Custom Maps - Hetzchase Nailway ep 2 "Kleiner-face"16:37Let's PlayPortal 5.Dom Plays - Ep #1 - Some crappy Portal 1 custom maps15:00Let's PlayPortal 6.Forgotten - Portal 1 custom map - walkthrough by the author14:37WalkthroughPortal 7.Dom Plays Portal Custom Maps - Hetzchase Nailway ep 5 "BONUS EPISODE"4:21Let's PlayPortal 8.Pick up the what?0:23Portal Top 100 » 200 » 300 » 400 » 500