Portal 2 Developer Commentary Information Center
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Overview on Portal 2 Developer Commentary
I noticed that there really wasn't any high quality videos of the Co-op These are a collection of stampy's older videos that have now been deleted. (with original thumbnail) Tags: Stampy Stampy's ... In this GDC 2012 talk, Valve's Erik Wolpaw and Chet Faliszek (not shown, but they're there -- promise!) discuss how Valve created ... As you play the game you unlock short videos in which the guys behind the game reveal secrets about its development.
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Portal 2 - Developer Commentary Complete on Single Player (All with Subtitles)
Portal 2 - DEVELOPER COMMENTARY
Portal 2 Co-op FULL Developer Commentary (with subtitles)
Portal Developer Commentary (No Background Sounds)
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Last Updated: May 26, 2026
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