Portal Beta - 2006 Germany Games Convention Demo

Portal Beta - 2006 Germany Games Convention Demo

FunnySecondChannelMan

[Portal Beta] Portal 2006 Trailer Recreation

Portal Beta 2005 & More 2006 Content

Portal Beta Playthrough - 2006

Portal: BETA - 2005 Version - Complete Game

[PORTAL BETA] Playable 2006 Pre-leak Glados fight

Portal Teaser Trailer

Portal's Weird Beta Maps

Portal December 2006 Beta Ending

Windows And Doors

Portal Beta Official Full Playthrough

Portal - GC 2006 - Gameplay (IGN)

Valve Video Archive

portal leak fix: 2006 maps compilation

Poppymuffinseed

GLaDOS Boss Fight (2006 Beta) - Portal: Project Beta

Beau Productions - Rip Rip Rip

E3 2010: Portal 2 surprise announcement at Sony's press conference

Kahleb Kensinger

Portal 2: Early Animation Tests

Portal Beta: Early 2007 GLaDOS Escape Map

[PORTAL 2005] - ВЫРЕЗАННЫЙ И РАННИЙ КОНТЕНТ!

STALKEROS VALVE

Portal 2 Beta inspired test animations

[Portal Beta] Portal Project Beta 2010