Some people dream of becoming billionaires. Some people dream of saving the world. Some people dream of being the best video game player the world has ever seen. In Ready Player One, all three of these dreams can come true simultaneously. The OASIS opens up a whole new world of possibilities, letting people live out dreams of being mermaids, flying in space, or owning their own planet. With Halliday's billion-dollar contest in the mix, it might even let people make big plans for their real lives, too.