Portal 2: Ending, Credits Song [HD]

Portal 2 Best of GLaDOS

Valve Song: COUNT TO THREE ■ feat. Ellen McLain (official GLaDOS), The Stupendium & Gabe Newell

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I Listened To Wheatley!

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2022 - Non-Euclidean Doom: what happens to a game when pi is not 3.14159…

*HQ* Portal 2 OST - Main theme (Reconstructing Science) Extended Version

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Minecraft's New Horror Features are Already Here

Why Doom is Awesome: Binary Space Partitioning

Oh, This is Why People Like Portal 2

Portal 2 - The Moron Theory

My game is 262,000 times faster than Minecraft. I'll show you how.

Portal 2: End Credits Song 'Want You Gone' by Jonathan Coulton [1080p HD]

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Visualizing 4D Pt.1

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I've never seen ANYTHING like this before... Temple OS