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Protocol: Umbra

cuait

Protocol: Umbra

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.

Released
8 May 2026
Developer
cuait
Publisher
cuait
Engine
Pygame
Platforms
PC (Microsoft Windows)
Genres
Puzzle · Simulator · Indie
8
Achievements

Protocol: Umbra

Quick answers

Protocol: Umbra

The story

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.

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Key facts

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Protocol: Umbra

Trailer

Protocol: Umbra

Screenshots

Protocol: Umbra

Reviews and languages

4 languages in the interface, 0 of them with full voice acting. English is supported.

Protocol: Umbra

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