• The story of Shin Megami Tensei IV: Apocalypse depicts the remnants of Tokyo, ravaged by a catastrophe. Demons and humans co-exist, but in this state, the remnants of humankind are just a prize being fought over by the higher deities. One lone Hunter, the game's protagonist, meets an early demise

• The story of Shin Megami Tensei IV: Apocalypse depicts the remnants of Tokyo, ravaged by a catastrophe. Demons and humans co-exist, but in this state, the remnants of humankind are just a prize being fought over by the higher deities. One lone Hunter, the game's protagonist, meets an early demise and through a pact with a lesser god, is brought back to life in exchange for his pledge of servitude. From there, the protagonist allies with other Hunters in the ruins of post-apocalyptic Tokyo beginning a plot that crosses over with the events of the original Shin Megami Tensei IV.
• Demons Aplenty: Shin Megami Tensei IV: Apocalypse has nearly 450 demons to fight, fuse, or recruit to player parties
• Fuse for Affinities: Demon fusion, combining two or more demons to form a more powerful one