I know people tend to joke about having a Civ addiction, but the number of people who have in fact binged an entire night or more playing civilization and have experience addiction like relationships with it should tell you that the line is thinner than I think most people are comfortable with.

Few games are “just good old fashioned fun.” Every game is designed to draw our attention. The distinctions between intent/accident, “it’s just fun”/designed to be addicting, etc. are not always very clear.