ERROR: Human Not Found

Science-fiction visual novel with an AI murder to investigate

CelleC Games · Released Jan 12, 2018

Reviews: Very Positive; 86% of 70
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 29, 2026
Steam Deck: Untested
Last update on Steam: 8 years ago; Jan 5, 2018
Minimum PC: DirectX; 2 GB RAM · 2 GB disk; Full requirements

What is ERROR: Human Not Found?

A free, single-player visual novel and puzzle game set aboard the Noah Sphere space research station. You play computer scientist Grace Fortran, investigating an AI's death to clear her name. Working with another AI, Ada, you search for clues, question suspects, and solve four types of computer-science puzzles in a mystery with three possible endings.

For you if...

+you enjoy stories about artificial intelligence and moral questions

Not for you if...

−you prefer action-focused games to reading dialogue and solving puzzles

What players say

86% of 70 reviews are positive

Players praise the characters and computer-related puzzles. A recent negative review criticizes the amount and quality of the writing.

Screenshots and trailer

ERROR: Human Not Found system requirements

Minimum: DirectX, 2 GB RAM, 2 GB of disk space.

As published by the developer.

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Minimum

OS: Windows 8.1
Processor: 4th Generation Core i3
Graphics: DirectX or OpenGL compatible card
Memory: 2 GB RAM
Storage: 2 GB available space

Does ERROR: Human Not Found have co-op or multiplayer?

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

Single-player

Does ERROR: Human Not Found run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Steam features: Family Sharing
Languages: Full audio: English.

Does ERROR: Human Not Found 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