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

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

: 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