Crisis Core: Final Fantasy VII

Crisis Core: Final Fantasy VII is a prequel to Final Fantasy VII and is a part of the Compilation of Final Fantasy VII. The game stars Zack Fair, a member of SOLDIER, assigned to find the missing SOLDIER Genesis Rhapsodos and discovers more information about SOLDIER's high-ranking Sephiroth and Angeal. Square Enix debated on porting Before Crisis: Final Fantasy VII, originally just for the Japanese mobile market, however, decided to just start fresh with a new game; Crisis Core.
The game sold over 3 million copies worldwide and received generally positive critical reviews. It scored a 35/40 from Famitsu magazine and was praised for how well the story tied into Final Fantasy VII. Some said the game was too short but had plenty of side-quests to keep you busy, along with an involved battle system.