Portal: Project Beta
PuzzleA Portal 1 beta mod using 2006 Valve beta assets and maps.
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Portal Reversed Map Order
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Hazmat's Portal Map Pack
PuzzleA small mod consisting of 7 maps. Designed to keep the original feel of Portal 1, while adding in puzzle elements only seen in Portal 2. This mod features...
Portal-Life 2
First Person ShooterPortal-Life 2 gives the player access to the Portal Gun in Half-Life 2!
portal Deep chambers Redux
Cinematicremember near portal 2's release when everyone was trying to make their own take on either portal 2 or trying to make their own facility well during that...
Portal : Smile
Educationalportal smile has a few elements of portal2. but, this mod was released before portal2 release. and this mod is basically use korean language but you can...
Portal: The Classics
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Outside Influence - Volume One
CinematicDiscover Aperture Science anew with original puzzles, elements and environments in a fully voiced story.
Portal: Unity
PuzzlePortal: Unity is a mod for the Valve game "portal" with almost everything revamped. New story levels, New textures, redesigned portals, new protagonist...
Portal: Project Beta Revived
Futuristic SimHave you ever wanted to roam around in the Half-Life style 2005 Beta of Portal, or maybe fight the Beta GLaDOS in the 2006 Beta? Well, look no further...
Portal: The Second Slice
PuzzlePortal: The Second Slice is a mod that aims to remake concepts from the lost “core hub” era/version of portal 2 in portal 1 and extending on them.