A video explaining the concept behind Portal, a mini-game to be included with Half-Life 2: Episode Two.
Download 'portal_071806_hd.zip' (51.84MB)
Extract and open, simple as that.
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Valve is an entertainment software and technology company founded in 1996 and based in Bellevue, Washington. The companyâ€™s debut title, Half-Life, has won over 50 Game of the Year Awards and was...
Registered 29th December 2002
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