Portal is a first-person puzzle game. Players must solve physical challenges by opening portals to maneuver objects, and themselves, through the enigmatic Aperture Science Laboratories.

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Portal 2 Mappack (it's for portal 1)

Portal 2 Mappack (it's for portal 1)

Puzzle

Portal 2 Mappack is just a mappack for the original game Portal. This will just have 4 different chambers, it's not a huge mappack. This is just for fun...

Underground Story

Underground Story

Puzzle

Portal | Underground story This Portal story is based on the MTN Portal Story | Part One! This mappack includes around 75 levels. in this mappack have...

Portal: Aperture Offices

Portal: Aperture Offices

First Person Shooter

This mod is about a scientist at Aperture during the making of GLADOS. in many ways it is a prequel to Portal Prelude

Portal 2 SkinPack for Portal 1 v1.5

Portal 2 SkinPack for Portal 1 v1.5

Puzzle

v1.5 already! Im releasing this as a mod so that I can upload more than 1 screenshot :P

Portal: Insane Aperture

Portal: Insane Aperture

Puzzle

When Aperture Science sells its Database Division, its managers use their last moments of power to plan a sabotage of GLaDOS.

Portal Elevators

Portal Elevators

First Person Shooter

Designed for the strongest Source Engine players, this mod is axed around the cutscene skips and the speed of elevators to create the ultimately funny...

Every sound in Portal replaced with my voice.

Every sound in Portal replaced with my voice.

Puzzle

I replaced mostly every sound in portal with my voice...

Narbacular Drop: Source Remake

Narbacular Drop: Source Remake

Puzzle

I am going to try to make the game Narbacular Drop in Source Engine! It will take lots of work and I would like the community to help me.

Portal Beta

Portal Beta

Adventure

This is a fan-made mod that plans to re-create the beta version of Portal. :)

Outside Influence - Volume One

Outside Influence - Volume One

Cinematic

Discover Aperture Science anew with original puzzles, elements and environments in a fully voiced story.

Portal: Aftertouch

Portal: Aftertouch

First Person Shooter

This Mod takes place between Portal: Prelude and the original Portal. Its the Year 2009... Glados has a new Testsubject with number #44362881 (her real...

Portal: Cyberspace

Portal: Cyberspace

Puzzle

Portal: Cyberspace is a mod for the valve game portal. When you awake in the Enrichment Centre GLaDOS attempts to force you to take part in a new and...

Portal: Inside Out

Portal: Inside Out

Puzzle

A Portal 1 Modification where you have to fight your own way to more than 15 Evil levels that are developed by a powerful Malware Virus. There are some...

Portal : Revive

Portal : Revive

First Person Shooter

During the Revive, You should be quiet. Or, Your head would not be on your neck.

Aperture Testing Facilities

Aperture Testing Facilities

First Person Shooter

This is a Sci-Fi mod for portal.This mod is made totaly by me. Hope you like it

iAmRattman

iAmRattman

Adventure

What ARE you doing? Without following this mod’s progress :D

Rexaura

Rexaura

Puzzle

Rexaura is a mod for Portal based on high energy pellets and several new mechanics surrounding them.

Insane Aperture Prequel

Insane Aperture Prequel

First Person Shooter

This is based off of Portal: Insane Aperture, a project I am currently working on.

Multiplayer Portal

Multiplayer Portal

First Person Shooter

This mod is a multiplayer version of Portal. It is currently in pre-alpha stage and will not work with Portal 2. Leave a comment if you want to join the...

Portal : Smile

Portal : Smile

Educational

portal 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...

Aperture: Recruit

Aperture: Recruit

First Person Shooter

What would you do if you wake up in a place that you never seen before? And if you did that in a game, and the game says that it happened? What you would...

Portal: Combine Partnership

Portal: Combine Partnership

Puzzle

This mod creates a connection between the Combine (Half-Life 2) and Aperture Science. It will most likely contain a new AI to replace GLaDOS. It will...

Mount Aperture

Mount Aperture

First Person Shooter

From the Journal of Test Subject #232: 31.21 N, 28.71 W. 2043 AD. It's hard to believe that just fifty years ago people were worried about the water levels...

Coretex Cluster

Coretex Cluster

Puzzle

The Evil Core has taken over GLaDOS and plans to use her weapons to destroy the world! As the last person alive in Aperture, it is your duty to stop him...

Interaction

Interaction

First Person Shooter

This is an unusual mod, with the brand new mechanic. The most part of game you will not be able to touch anything: you'll have to interact with boxes...

Portal : In search of cake

Portal : In search of cake

Puzzle

This mod is set in the newly Aperture Laboratories in the South of [SOME CONTINENT] where the only employee, GLaDOS, controls all the facilities, She...

The Projex

The Projex

First Person Shooter

Projex is a Valve's Portal Mod which is a personal creation that tributes the fabulous game of Portal. This is more of a skin rather than a real-game...

Portality

Portality

Puzzle

Here are some maps included in this mod for Portal players. Remember to try Bonus Maps. Have fun!

Portal: Vocaloid Edition

Portal: Vocaloid Edition

First Person Shooter

What happens when you install GlaDOS into the Vocaloid Hatesune Miku? The worlds greatest virtual diva becomes the worlds greatest virtual antagonist...

Portal: North

Portal: North

First Person Shooter

You wake up in a ruined laboratory, Aperture labs to be procise you don't have a portal gun in your hand, but you can tell your going to need one.