"Ready Player One" is set in a dystopian future where people escape their harsh realities by immersing themselves in a virtual reality called the OASIS (Ontologically Anthropocentric Synchronous Immersive Simulation). Created by James Halliday and Ogden Morrow, the OASIS is a place where users can be anyone, do anything, and live out their fantasies. When Halliday passes away, he leaves behind a challenge: find his Easter egg hidden within the OASIS, and inherit his vast fortune and control over the OASIS itself.