Crisis Core: Final Fantasy VII (クライシス コア -ファイナルファンタジーVII- Kuraishisu Koa -Fainaru Fantajī Sebun-?) is an action role-playing gamedeveloped and published by Square Enix for the PlayStation Portable. First released in 2007, the game is a prequel to the 1997 video game Final Fantasy VII and is a part of the metaseries Compilation of Final Fantasy VII, which includes other products related to the original game.
The game primarily focuses on Zack Fair, a young member of the paramilitary organization SOLDIER, who is assigned to look for the missing SOLDIER Genesis Rhapsodos. As he searches for Genesis, Zack discovers Genesis' origin, Project G, and how it is related to two other high ranking SOLDIERs; Sephiroth and Angeal Hewley. The game's storyline takes the player from the war between the megacorporation Shinra and the people of Wutai to the events in Nibelheim, and right up to the time just before the beginning of Final Fantasy VII.