Yandere Simulator is an upcoming stealth action video game for Windows. The story follows obsessively lovesick schoolgirl Ayano Aishi, nicknamed "Yandere-chan", who takes it upon herself to eliminate anyone she believes attracting the attention of her "senpai", Taro Yamada. A 1980s-set prequel game mode, Yandere Simulator: 1980s Mode, following the similar story of Ayano’s parents, was soft-launched on October 10, 2021. The non-canon Yandere Simulator: Mission Mode follows Ayano as an assassin pursued by a hunter named Nemesis.