Quit your day job and begin developing games!
From the humble beginnings of programming alone in the basement, build up your company by employing and training new workers, researching new technologies and dominating the market with hit games of your design.
Follow a roughly similar gaming history as the real world as famous companies release their gaming consoles, starting with the first generation 8bit consoles, play through 60 years of history and see all the technological advances, from 2D graphics all the way to augmented reality.