A story at Wired charts the course of Chain World, a video game designed by Jason Rohrer to be different from any game that came before it. Quoting: "It would exist on [a USB flash drive] and nowhere else. According to a set of rules defined by Rohrer, only one person on earth could play the game at a time. The player would modify the game’s environment as they moved through it. Then, after the player died in the game, they would pass the memory stick to the next person, who would play in the digital terrain altered by their predecessor—and on and on for years, decades, generations, epochs. In Rohrer’s mind, his game would share many qualities with religion—a holy ark, a set of commandments, a sense of secrecy and mortality and mystical anticipation. This was the idea, anyway, before things started to get weird."