Catechesis is a horror-themed role-playing game available on Nintendo Switch, where players step into the shoes of Daniel, an altar boy possessed by a demon. The game combines a rich narrative with anime-style cutscenes and unique character interactions, creating an immersive experience. Players must navigate a dual life, completing virtuous tasks during the day while battling demons at night, all in an effort to save his grandfather and prevent the world from succumbing to darkness.

The gameplay features a day-night cycle, allowing players to attend school and work during daylight hours before venturing into dungeons after dark. Combat is strategic, with a focus on ranged and melee weapons, enhanced by a twin-stick aiming system. Players can explore the world using a flashlight or candles to uncover hidden secrets and resources, while the atmospheric soundtrack by Michael Kelly adds to the overall experience. Catechesis delivers a unique blend of horror and RPG elements.