: While you must own Portal 2 , it does not need to be currently installed on your computer to run Portal Stories: Mel as a standalone application. Game Overview

Set between the events of Portal and Portal 2 , the game follows , a volunteer test subject who wakes up decades late in the decaying Aperture Science facility. Guided by a maintenance core named Virgil , Mel must use a prototype portal gun to navigate massive, complex environments and face a new threat to the facility. Key Features

: Includes over 700 custom voice-lines , an hour of original music, and thousands of new assets.

: Features 27 Steam achievements for completionists. Technical Troubleshooting

If you encounter issues during your playthrough, community-sourced fixes include: Portal Stories: Mel on Steam

The game is officially available for download on the Steam Store . : Completely free . Requirement : You must own a copy of Portal 2 on PC to play.

: Approximately 6 to 10 hours of gameplay across 22 levels.

is a free, high-quality community-made modification for Portal 2 , released on June 25, 2015 . It is widely considered one of the most ambitious fan creations in the Portal universe, even winning Best Fan Creation at The Game Awards 2015. Download and Installation