Portal: Revolution is a fantastic narrative-driven Portal 2 mod, that takes place in the dilapidated remains of the Aperture facility before the events of Portal 2.
As far as Portal 2 mods go, Portal: Revolution is a pretty incredible one. It features full voice acting, over 40 new test chambers, original characters and a narrative driven campaign that takes 6-7 hours to play through.
The core mechanics in Portal: Revolution are pretty much the same as the original, but the environments look a lot more impressive and there are even some new puzzle elements introduces (such as the laser cubes).The quality of the whole thing feels like it could be an official Valve game and it makes a worthy accompaniment to the other two Portal games. Highly recommended.
Controls: Mouse – Point & Click
Available On: Windows (Steam – Portal 2 Game Required)
Download Portal: Revolution Here