Regulus -The Advent- is an immersive role-playing game available on Android that invites players to explore the dark realms of demons within The Purgatorium. Players take on the role of Ashford, the Prince of Notoria, as he investigates the spreading Vesper Crisis alongside the Regulus Squad. The game features a captivating storyline where players encounter various factions of enemies, each posing unique challenges that must be overcome to progress in the game.

In Regulus -The Advent-, players can strategically set up their squad to combat threats and enhance their characters through upgrades. This system allows for tailored gameplay experiences as players adapt to increasingly formidable foes. With its engaging narrative and dynamic battle mechanics, this free-to-play game offers an intriguing adventure for fans of the RPG genre.