Description

This mod by the Portal: Prelude Team is the prequel to the Portal game. Features include more gameplay hours than the original game, 8 chapters, 48 challenges, 6 advanced maps, a brand new storyline and more than 400 lines of speech.

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Portal: Prelude 1.1.5
Comments
Guest
Guest - - 699,159 comments

I thought this was sketchy but it wasn't. Lol

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BorderWorldGaming
BorderWorldGaming - - 4 comments

No idea why but I cant get the installer to launch

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Guest
Guest - - 699,159 comments

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Spacer!
Spacer! - - 13 comments

invaild data???

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HeYaSTIC
HeYaSTIC - - 7 comments

If you think "Why is there an error that says "this file contains invalid data"?", it's because this version used gcf system, but portal uses vpk system now

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