Fan-Made Mod 'Portal: Revolution' Released on Steam

The free mod offers eight hours of gameplay, over 40 new puzzles, and has received overwhelmingly positive reviews.

Portal: Revolution, a fan-made mod of Portal 2, has been released on Steam for free.
The mod, developed by Second Face Software, offers eight hours of gameplay and over 40 new puzzles.
The game is set between the events of Portal 1 and 2, and introduces new elements such as a new laser cube variant and a resurrected feature from the original Portal 2 development.
The mod has received positive reviews, with 94% of over 3,000 reviews on Steam being positive.
Portal: Revolution is available for free to anyone who owns a copy of Portal 2 on their Steam account.