

Devil Collection is a social card-based battle game available on the Mobage platform. Like many other titles on the service, it follows a free-to-play structure. The game's narrative revolves around players protecting modern Tokyo from a demonic threat as a demon summoner who uses a mobile app to summon and merge demons. By collecting demon allies and customizing their abilities through fusion, players can build and manage their own decks. Each card's rarity is indicated by star ratings on the card's side, with the top-tier Master rank holding six stars. The game regularly features special events offering card rewards, such as a pre-registration bonus for a Super Rare Cerberus card and a Snow Wars event centered around the Jack family, introducing the King Frost card.
Players took on the role of a demon summoner in modern-day Tokyo, battling a demonic invasion using summoning and fusion abilities accessed through a cellphone app. By collecting demon allies and combining them with tailored skills, players could build and manage their own decks for battle.