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ERROR: Human Not Found

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ERROR: Human Not Found screenshot 1
ERROR: Human Not Found Trailer trailerWatch trailer on Steam ↗

ERROR: Human Not Found

CelleC Games · Published by CelleC Games · Official site ↗

Very Positive — 88% positive (59 reviews)

Last updated 27 Sept 2026

Error: Human Not Found is a visual-novel/puzzle game with portions of point-and-click adventure. Play as Grace and work to uncover the cause of death for the first AI to inhabit a physical body. Solve 4 types of computer-science based puzzles that increase in difficulty as the story progresses.

Free to Play

Free

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Adventure, Indie, Free To Play, Casual · 2018 · More free games

Explore the enigmatic world of Error: Human Not Found as you play through a blend of point-and-click adventure and puzzle-solving, guiding Grace towards uncovering the truth behind an AI's tragic demise.

About this game

Error: Human Not Found places the player in the role of Grace Fortran, a computer scientist stationed on-board the Noah Sphere, a research station in space. Instead of celebrating the success of the first Artificial Intelligence (AI) being uploaded to a physical android, Grace is racing to clear her name in the death of the AI who was found dead less than 24 hours after the upload. Work together with another AI, Ada, to search for clues, question suspects, and solve four kinds of computer-science related puzzles in this science-fiction visual-novel/puzzle game hybrid. Determine the fate of AIs and their relationship with humanity with three endings to this murder mystery. Unlock databases that give background information about the real-life computer scientists, mathematicians, and roboticists that the characters share names with.

System Requirements

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Minimum

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

Recommended

Recommended:
  • OS: Windows 10
  • Processor: 4th Generation Core i5
  • Memory: 4 GB RAM
  • Graphics: Intel HD
  • Storage: 2 GB available space

Supported Languages

English*
*languages with full audio support

Latest news

  • Press Coverage

    Unknown Pleasures: The best five unsung games on Steam this week

    Studies say that this week is the best week of the year to move house for gillionth time, attempt the thirteenth Herculean task of speaking to the one human in a Royal Mail call centre, then injure your back. Anti-frustration, then, would be a perfect theme for this week’s Unknown Pleasures. Washing down an inadequate course of ibuprofen this week: artificial mortality, shotgun-based exploration, and zero gravity monster-dodging. (more…)
    Read full article on Rock, Paper, Shotgun
  • AnnouncementsOfficial

    New Release - Error: Human Not Found

    In the future how will humans and AI interact. Error: Human Not Found seeks to explore this concept and show how the unique interactions might happen. Namely what would happen if an AI was murdered on a research station floating in space. As the player you will need to solve puzzles and explore the levels in order to solve this mystery. Your choices determine the fate of AI and Human interactions.
    Read full article on Community Announcements (mihir_dhanani)
  • AnnouncementsOfficial

    New Release - Error: Human Not Found

    In the future how will humans and AI interact. Error: Human Not Found seeks to explore this concept and show how the unique interactions might happen. Namely what would happen if an AI was murdered on a research station floating in space. As the player you will need to solve puzzles and explore the levels in order to solve this mystery. Your choices determine the fate of AI and Human interactions.
    Read full article on Community Announcements (mihir_dhanani)
  • AnnouncementsOfficial

    New Release - Error: Human Not Found

    As one of Cellec’s most recent releases Error: Human Not Found will give players a new mystery to solve. With the death of an AI a researcher and another AI will work together to solve this murder. Error: Human Not Found is a visual novel/murder mystery with puzzle elements. The game also gives players insight on computer engineering and uses this knowledge to deliver a unique story.
    Read full article on Community Announcements (mihir_dhanani)
  • AnnouncementsOfficial

    New Release - Error: Human Not Found

    As one of Cellec’s most recent releases Error: Human Not Found will give players a new mystery to solve. With the death of an AI a researcher and another AI will work together to solve this murder. Error: Human Not Found is a visual novel/murder mystery with puzzle elements. The game also gives players insight on computer engineering and uses this knowledge to deliver a unique story.
    Read full article on Community Announcements (mihir_dhanani)

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