Buy Steins;Gate

Steins;Gate is an interactive visual science fiction novel. You will follow a bunch of tech-savvy young students who have found ways to change the past through the mass media, thanks to a microwave they have tampered with. But they will quickly find themselves in the heart of a plot that surpasses them. You interact with the group through a phone. You receive calls and messages from students and decide whether to answer or not. That will have an impact on the rest of the story. And since your choices are decisive, several ends are possible.