Set inbetween Portal and Portal 2, Portal: Revolution tells a brand new story using new characters. You play as a test subject who is awoken by a personality sphere called Stirling and join his mission to find a powerful device capable of restoring Aperture to its former glory.
ENGINE
Portal: Revolution uses a modified version of Portal 2: Community Edition's engine, which is a custom version of the Counter-Strike: Global Offensive Source Engine branch using licensed source code provided by Valve Software.
This allowed us to introduce many mechanics and improvements to the engine to create an experience which would be impossible in Portal 2.
