...In low light and solitude I first imersed myself. My headphones and screen immediately presented the most humdrum, plausible beginning for a reality based game: you are going in to work. Fade in to the interior of an automated tram car. A prerecorded voice welcomes you to the Black Mesa Transit System. Such inauspicious beginnings mark the first 20 minutes of the game, and while it might sound boring, it has a devious psychological purpose.