Portal: Revolution

Portal: Revolution is a fan-made mod for Portal 2, which plays before the events of Portal 2 in the dead and decaying Aperture facility. Delve into a new story with original characters, spanning over 8 hours of gameplay and featuring over 40 new challenging test chambers that make use of new mechanics. Portal: Revolution is a fan-made mod for Portal 2 which plays before the events of Portal 2 in the dead and decaying Aperture facility.