Protocol: Umbra cover art

Game

Protocol: Umbra

2026 · PC (Microsoft Windows) · Puzzle · Simulator · Indie

About this game

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.

Screenshots

Protocol: Umbra screenshotProtocol: Umbra screenshotProtocol: Umbra screenshotProtocol: Umbra screenshotProtocol: Umbra screenshot
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Trailers & videos

Teaser

Game facts

Release date

May 8, 2026

Developer

cuait

Publisher

cuait

Platforms

PC (Microsoft Windows)

Genres

Puzzle, Simulator, Indie

Themes

Horror

Game modes

Single player

Perspective

First person

More games to explore

Game data and artwork via IGDB.

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