428: Shibuya Scramble

428: Shibuya Scramble is a visual novel adventure game produced by Koichi Nakamura with Jiro Ishii serving as executive producer, developed by Nakamura's company Chunsoft, and initially published by Sega, originally in Japan for the Wii on December 4, 2008.

The game was ported by Spike to the PlayStation 3 and PlayStation Portable in September 2009. A version for iOS and Android was released in November 2011. PlayStation 4 and Windows versions were released in September 2018.

428 is set in the Shibuya ward of Tokyo where the narrative is presented using a combination of scrolling text, live action stills and video sequences. The game shares many story and gameplay elements with Chunsoft's 1998 sound novel game Machi, the most prominent being the locale, Shibuya. Although Chunsoft does not openly state 428 is a sequel, the game contains numerous references to Machi, and an early marketing slogan reads "Breaking a long silence, Shibuya gets going again."

The game has received high praise from critics, earning a perfect score in Famitsu Weekly, Japan's largest circulating video game magazine, as well as acclaim from international publications.

The game also features a special scenario contributed by Kinoko Nasu and Takashi Takeuchi of Type-Moon fame, who wrote and provided character designs for them respectively. This scenario by Type-Moon got a sequel as an anime television series titled Canaan, which aired in Japan from July to September 2009.

A series of four novels based on the game were published by Kodansha between the months of September and December 2009.