The Science Adventure series (科学アドベンチャーシリーズ, Kagaku Adobenchā Shirīzu) is a Japanese video game franchise created by 5pb. in collaboration with Nitroplus. The series currently consists of four main visual novel games; Chaos;Head, Steins;Gate, Robotics;Notes, and Chaos;Child which have each received various ports, sequels, and spin-offs, as well as various manga and anime adaptations.