Mortisomem

Retro horror adventure about escaping a demon in rural Brazil

David Pateti · Released Jan 12, 2024

Reviews: Very Positive; 92% of 71
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 1 year ago; Oct 3, 2025
Minimum PC: Integrated; 2 GB RAM · 1 GB disk; Full requirements

What is Mortisomem?

This first-person horror adventure takes place in inland Brazil in 1917, as an American merchant flees a demon. You explore an open map of forests and rural areas, meet locals, and uncover the region's history while searching for a way home.

For you if...

+you like short adventures with decisions that change the ending

Not for you if...

−you want constant combat instead of exploration and conversation

What players say

92% of 71 reviews are positive

Players praise the atmosphere and story, but complain about excessive walking across the map and a tedious boss fight.

Screenshots and trailer

Mortisomem system requirements

Minimum: Integrated, 2 GB RAM, 1 GB of disk space.

As published by the developer.

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Minimum

OS: Windows 7 (SP1+)
Processor: Dual Core CPU +2Ghz
Graphics: Integrated Graphics
Memory: 2 GB RAM
Storage: 1 GB available space
DirectX: Version 10
Notes: Any computer with at least 10-15 years old hardware can run this game

Does Mortisomem have co-op or multiplayer?

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

Single-player

Does Mortisomem 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, Linux
Achievements: 14
Steam features: Cloud saves, Family Sharing
Languages: Text only: English, French, Italian, German, Spanish - Spain, Simplified Chinese, Korean, Spanish - Latin America, Portuguese - Brazil, Portuguese - Portugal, Russian, Japanese.

Does Mortisomem 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 28, 2026. How to filter AI games on Steam