As a philosopher who teaches aesthetics and a gamer, I find questions about games and art to generally be rather interesting. As I have argued elsewhere, I take the intuitively plausible view that video games can be art. However, even if that matter is considered settled (which can be debated), there is still a rich vein of philosophical issues to mine.
The idea that a game should be focused on the game is, interestingly enough, also consistent with Aristotle’s view: “each art ought to produce, not any chance pleasure, but the pleasure proper to it.”