Steins;Gate (2009)

Choose the original English PC visual novel for its complete set of character endings and true ending. Phone replies and calls determine the routes; a spoiler-light guide can help with the precise final-route flags. Steins;Gate 0 is a related separate story, not a payment needed to finish this one. Expect a long, chatty opening, Japanese voice acting and increasingly difficult time-travel decisions once the group understands what it has changed.