Malleus Cocconum: The Heiress

A gothic visual novel where choices can lead to death

Domus Aurea · Released Jan 15, 2025 · Early Access

Reviews: Very Positive; 95% of 164
Recent reviews: Very Positive; 100% of 18 in 30 days
Players: 4; daily peak, Oct 28, 2026
Steam Deck: Unsupported
Last update on Steam: 3 months ago; Jul 2, 2026
Minimum PC: Integrated; 2 GB RAM · 4 GB disk; Full requirements

What is Malleus Cocconum: The Heiress?

You play Arenda Finch in a single-player visual novel set at Dunkenwood House, where she transfers after expulsion from a church-run girls’ school. You make choices about her studies and relationship with her brother, and can investigate the manor’s history and family secrets while pursuing graduation and an inheritance.

For you if...

+you enjoy mysteries with psychological horror themes
+you like stories with multiple endings

Not for you if...

−you want a finished story rather than early access

What players say

95% of 164 reviews are positive · 100% of 18 in the last 30 days

Players praise the cast of characters.

Screenshots and trailer

Malleus Cocconum: The Heiress screenshot 1

Malleus Cocconum: The Heiress system requirements

Minimum: Integrated, 2 GB RAM, 4 GB of disk space.

As published by the developer.

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Minimum

OS: Windows 7
Processor: Intel Core 2 Duo
Graphics: Integrated graphics
Memory: 2 GB MB RAM
Storage: 4 GB available space

Does Malleus Cocconum: The Heiress have co-op or multiplayer?

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

Single-player

Does Malleus Cocconum: The Heiress run on Steam Deck?

Unsupported No: Valve rates it Unsupported on Steam Deck.

Not supported on SteamOS

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows, macOS, Linux
Achievements: 35
Steam features: Family Sharing
Languages: Text only: English, Simplified Chinese, Traditional Chinese.

Does Malleus Cocconum: The Heiress 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 27, 2026. How to filter AI games on Steam