Protocol: Umbra

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Protocol: Umbra is an unsettling, observation-driven psychological horror game inspired by I’m on Observation Duty and FNaF, built in Python with Pygame-CE and powered by my own UI framework, Tessella. You are the AI of a spaceship orbiting a mysterious celestial body at the edge of the solar system. While the crew sleeps, you stay awake - watching through cameras, monitoring the vessel, and searching for anomalies. At first, it’s only small things: a misplaced object, a door open when you’re sure it was closed. But the longer you observe, the stranger everything feels - until you can’t trust what you’re seeing.

GameGator compares prices. This description, the release dates, and the age ratings come from IGDB. A later date on another platform is a separate release. A date still in the future is marked as not released yet.

Developer

cuait

Genres

Simulator

15,670 games

Indie

43,605 games

Puzzle

10,661 games

Platforms

Windows

74,254 games

Releases

May 08, 2026

Windows