Catechesis is a horror-themed RPG that invites players to step into the shoes of Daniel, a demon-possessed altar boy navigating a dual life of virtue and battle. The game features a compelling narrative filled with unique characters and anime-style cutscenes that enhance the storytelling experience. Players must balance between attending school and working during the day while preparing to confront demons at night, making choices that impact both personal and world fate.

The game boasts several engaging features, including an improved stealth system and a dynamic day-night cycle that enriches exploration. Combat is tactical, utilizing a twin-stick aiming system for ranged and melee attacks. The haunting soundtrack by Michael Kelly adds depth to the gameplay, while players can uncover hidden lore and resources by illuminating dark corners with a flashlight or candles. Catechesis offers a captivating blend of horror, role-playing, and exploration.