A recently released fan mod for Portal 2 adds 40 new test chambers for players to wrap their heads around, including new mechanics and a brand new story.
Portal: Revolution was developed by Second Face Software in a modified version of Portal 2: Community Edition, a community-made mod to help players create and play community content.
The developer estimates Revolution will take around eight hours to finish, and players will encounter a new laser cube variant and puzzles which use only the blue Portal Gun during the campaign.
