Catechesis

A horror RPG where an altar boy's good deeds open hell

Baroque Decay · Release: Q3 2027

Release: Q3 2027; not released yet
Wishlist rank: #498; most wanted
Followers: –; following the game
Demo: 4 playing; Get the demo

What we know: A demo launched in June 2026, followed by development updates and an October release-date announcement; the game is listed for Q3 2027.

What is Catechesis?

In this horror RPG, you play Daniel, a demon-possessed boy trying to save his grandfather without endangering the world. He goes to school and work by day, then explores a dungeon and fights demons at night. You can also explore the city, upgrade weapons, and use light to find resources and hidden paths.

Screenshots and trailer

Catechesis system requirements

Minimum: Integrated GPU supporting…, 2 GB of disk space.

As published by the developer.

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Minimum

OS: Windows XP
Processor: Core 2 Duo
Graphics: Integrated GPU supporting OpenGL on the system
Storage: 2 GB available space
Notes: Requires a 64-bit processor and operating system

Does Catechesis have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does Catechesis run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Full controller support
Platforms: Windows, macOS, Linux
Steam features: Cloud saves, Family Sharing
Languages: Text only: English, Spanish - Spain, Galician, French, German, Japanese, Korean, Portuguese - Brazil, Russian, Simplified Chinese, Turkish, Ukrainian.

Does Catechesis use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 26, 2026. How to filter AI games on Steam