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 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: Project Beta

Portal: Project Beta

Puzzle

A Portal 1 beta mod using 2006 Valve beta assets and maps.

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-Life 2

Portal-Life 2

First Person Shooter

The original Half-Life 2: Portal Mod, with HL2 maps, Gordon Freeman Playermodel, new HUD, installation guide and in a ZIP file. Have fun! -iCrazyBlaze

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...

Portal Beta

Portal Beta

Puzzle

Project closed. Forever. I don't work in beta. It's dead.

Portal: Last Hope

Portal: Last Hope

Adventure

In Portal: Last hope, you play a key role in the beta testing of Aperture Mesa Testing Initiative Center. You will be able to solve them by the "aid...

iCrazyBlaze's Really Stupid Portal Modpack

iCrazyBlaze's Really Stupid Portal Modpack

Puzzle

Just a bundle of mods that I found on teh interwebz. Links to the original mods can be found in "README_Mods.txt". Have fun!

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...

Portal:Android

Portal:Android

Puzzle

I need story writer and map maker and voice acter. First story writer write a story(every test chamber need turret because this mod is about android...

White Mesa

White Mesa

First Person Shooter

Welcome to the White Mesa! This is a mod for Portal that adds new whole story. Evil GJiDOS AI was destroyed by a unknown human. Your name is Jeff Nake...

Portal: Project 2005 Remake

Portal: Project 2005 Remake

First Person Shooter

This is a recreation mod of the 2005 version of portal.

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.

Hazmat's Portal Map Pack

Hazmat's Portal Map Pack

First Person Shooter

A 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 Beta

Portal Beta

Adventure

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

Portal 2006 alpha 28.1.4.5

Portal 2006 alpha 28.1.4.5

Puzzle

My version of Portal Project Alpha. Portal Gun Beta animations and real alpha portals!

Portal: Combined Technologies

Portal: Combined Technologies

Puzzle

Portal: Combined Technologies, also referred to as simply "Combined Tech", is a puzzle, story, and combat driven Portal 1 mod (recently being converted...

Portal: Ratman Stories

Portal: Ratman Stories

Puzzle

Portal: Ratman Stories is a fan-made mod for Portal, featuring Doug Rattmann (from the Portal 2 Comic) as Protagonist. Ratman Stories starts the day GLaDOS...

Outside Influence - Volume One

Outside Influence - Volume One

Cinematic

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

Blue Portals

Blue Portals

First Person Shooter

Blue Portals is a unique Portal mod that has players traverse through new test chambers using only the single portal device and many new test elements.

Map db

Map db

Arcade

this is not a mod. this a place for maps. next release:TBD

Portal: Source SDK Edition

Portal: Source SDK Edition

First Person Shooter

WHAT IS: Portal: Source SDK Edition? Portal: Source SDK Edition is an open source version of Portal 1 using the leaked 2007 code.

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...

CWTH

CWTH

First Person Shooter

What you would do, if everything seems to be over and you are still alive? We are pretty sure you'd like to come home. The story takes place in Half-Life...

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

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...

iAmRattman

iAmRattman

Adventure

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