The Steins;Gate series is a science fiction visual novel franchise that began with the release of Steins;Gate in 2009, which was later ported to multiple platforms in 2012 and 2013. The series expanded with spin-offs including the romantic comedy Steins;Gate: Hiyoku Renri no Darling and the anthology Steins;Gate: Senkei Kousoku no Phenogram. It is a major entry within the larger Science Adventure franchise.
Developed by 5pb. and Nitroplus, the narrative centers on Okabe Rintaro and his fellow researchers at the Future Gadget Laboratory, who accidentally discover a method of sending text messages to the past using a modified microwave. This "Phone Trigger" system serves as the primary gameplay mechanic, where player choices in answering emails and phone calls alter the story's timeline.
Following the initial success of
Steins;Gate (2009), the franchise expanded its reach through various ports and localized editions. The core experience of
Steins;Gate (2012) and
Steins;Gate (2013) brought the time-travel narrative to a wider audience across multiple console generations. The spin-off
Steins;Gate: Hiyoku Renri no Darling (2012) and its subsequent release
Steins;Gate: Hiyoku Renri no Darling (2013) offered players lighter, non-canonical romantic scenarios. Further depth was added to the universe with
Steins;Gate: Senkei Kousoku no Phenogram (2013), which explored alternative perspectives from different characters, alongside its
Steins;Gate: Senkei Kousoku No Phenogram [Limited Edition] (2013) release. These titles solidified the franchise's reputation for intricate plotting and character-driven science fiction.