Ready Player Two is a 2020 science fiction novel by American author Ernest Cline. It is the sequel to his 2011 debut novel, Ready Player One. Set after Wade Watts wins control of the virtual-reality system known as the OASIS, the novel follows Wade and his friends as they discover a brain–computer interface created by James Halliday and undertake another quest. Its story examines the benefits and risks of immersive technology, including addiction, surveillance, and the possibility of digitally reproducing human consciousness.