A survival horror action role-playing game and a sequel to the novel Parasite Eve written by Hideaki Sena. It is also the first game in the Parasite Eve video game series.
The story follows New York City police officer Aya Brea over a six-day span in 1997 as she attempts to stop the monster that is sparking the creation of a creature that will destroy the human race through spontaneous human combustion. Players are allowed to move freely around several open environments while utilizing a pausable real-time combat system along with several role-playing game elements.