Shin Megami Tensai: Devil Summoner is set in modern-day New York City, where the protagonist, a young man named Keats, becomes embroiled in a mysterious conflict between humans and demons. Keats soon discovers that he has the ability to summon and control demons, and must use this power to uncover the truth behind his own past and the sinister forces manipulating events.
Gameplay involves exploring various locations, including the city's streets and ancient ruins, while battling enemies and recruiting new demons to join your team. You'll need to manage your party's abilities, items, and stats carefully, as well as make strategic decisions about which demons to summon and when.