I know some people were confused as to what DmC using the Unreal engine meant for the game. This article explains what an engine is and does on a basic level. I thought you guys might find it a good read.
Here:
http://www.gamesradar.com/ask-gr-anything-whats-game-engine/
Here:
http://www.gamesradar.com/ask-gr-anything-whats-game-engine/