Shin Megami Tensei IV (Japanese: 真・女神転生IV) is a role-playing video game developed by Atlus for the Nintendo 3DS. It is the fourth entry in the Shin Megami Tensei series, which is part of the larger Megami Tensei franchise. The game is set in a post-apocalyptic version of Tokyo in the year 20XX. The player takes on the role of a Samurai, a member of a secret organization tasked with protecting the world from a hostile force known as the Black Samurai. The game follows the player's journey as they explore the world, interact with its inhabitants, and battle demons. The player must make choices throughout the game that will affect the story and its outcome. The game features a turn-based battle system and a variety of weapons, armor, and items that can be used to customize the player's character. Shin Megami Tensei IV also features a robust online component, allowing players to connect with others and trade items. Shin Megami Tensei IV is a deep and complex role-playing game that offers an immersive experience and a unique take on the post-apocalyptic genre.