T.Rexington on 20 February 2012
To expand on Metallicube's idea, it's all just branding, it's kind of the same deal with the term "hardcore gamer" with the exception that nobody really calls them self a casual gamer anywhere near as much. If you had to define, I'd say a casual game concentrates on easy but really fun gameplay, it'll still have challenge to it, but never to the point where the players will feel discouraged and will keep on playing.
