- MAGES., Nitroplus, 5pb.
- PQube, JAST USA, MAGES., Kadokawa Shoten, 5pb.
5pb. and Nitroplus created the Japanese visual novel Steins;Gate. Following Chaos;Head, it is the second game in the Science Adventure series. The development team describes the game as a "hypothetical science ADV" that explores time and time travel in 2010 Akihabara. The gameplay follows non-linear plot lines that offer branching scenarios with interaction paths.