Research and Development is a puzzle-centric mod for Half-Life 2: Episode Two featuring an unarmed player but plenty of violent mayhem.
Wonder what the colours are for? Perhaps like batteries that you put in or something.
You know this mod has been released for like two years already, right?
Those color blocks are part of a puzzle. You put them in the right order (shown... light prism / rainbow order).
You are not logged in, your comment will be anonymous unless you join the community today (totally free - or sign in with your social account on the right) which we encourage all contributors to do.
2000 characters limit; HTML formatting and smileys are not supported - text only