Source: http://www.newyorker.com/online/blogs/el...

What is it that has made this type of game such a success? It’s not simply the first-person perspective, the three-dimensionality, the violence, or the escape. These are features of many video games today. But the first-person shooter combines them in a distinct way: a virtual environment that maximizes a player’s potential to attain a state that the psychologistMihaly Csikszentmihalyi calls “flow”—a condition of absolute presence and happiness.

“Flow,” writes Csikszentmihalyi, “is the kind of feeling after which one nostalgically says: ‘that was fun,’ or ‘that was enjoyable.’ ” Put another way, it’s when the rest of the world simply falls away. According to Csikszentmihalyi, flow is mostly likely to occur during play, whether it’s a gambling bout, a chess match, or a hike in the mountains. Attaining it requires a good match between someone’s skills and the challenges that she faces, an environment where personal identity becomes subsumed in the game and the player attains a strong feeling of control. Flow eventually becomes self-reinforcing: the feeling itself inspires you to keep returning to the activity that caused it.

As it turns out, first-person shooters create precisely this type of absorbing experience.