Steins;Gate(2009)

Steins;Gate is a Japanese visual novel developed by 5pb. and Nitroplus. It is the second game in the Science Adventure series following Chaos;Head. The game is described by the development team as a "hypothetical science ADV" and explores time and time travel in 2010 Akihabara. The gameplay follows non-linear plot lines which offer branching scenarios with courses of interaction.