WORLD WITHOUT OIL is a collaborative alternate reality event simulating the first 32 weeks of a global oil shock. The gamemaster set the price of fuel and level of availability for each week, and challenged players to document their lives in this new energy-deprived reality. Players responded with over 1500 in-game stories, expressed in blogs, videos, phone calls, and images, that give WORLD WITHOUT OIL compelling depth and visceral realism. A serious game for the public good, the "alternate reality game" is being heralded as the first to engage the collective imagination of Internet users to confront a real-world problem - our dependence on oil. The portal to the WORLD WITHOUT OIL archive is www.worldwithoutoil.org.