Shin Megami Tensei: Persona 4 (ペルソナ4 Perusona Fō?) is a role-playing video game developed and published by Atlus for Sony's PlayStation 2, and chronologically the fifth installment in the Persona series, a spinoff series of the Megami Tensei Franchise. Persona 4 was released in Japan in July 2008, North America in December 2008, and Europe in March 2009, and was later re-released on the PlayStation Network in April 2014. An enhanced remake for the PlayStation Vita, Persona 4 Golden (Persona 4: The Golden in Japan), was released in Japan in July 2012, North America in November 2012, and in Europe in February 2013.
Persona 4 takes place in a fictional Japanese countryside and is indirectly related to both Shin Megami Tensei: Persona 3 and the Persona 2 games. The player-named main protagonist is a high-school student who moved into the countryside from the city for a year. During his year-long stay, he becomes involved in investigating mysterious murders while harnessing the power of summoning Persona. The game features a weather forecast system with events happening on foggy days to replace the moon phase system implemented in the previous games.
The plot of Persona 4 was inspired by the work of mystery novelists owing to its murder mystery premise. The rural setting was based on a town on the outskirts of Mount Fuji and intended as a "'nowhere' place" and is the central setting to have players sympathize with the daily life of the characters. The developers added many in-game events to prevent the game from becoming stale. During the localization, numerous alterations to names and cultural references were made to preserve the effect through translation, but some Japanese cultural references were altered or removed.