Protocol: Umbra
PC

Protocol: Umbra

cuait• cuait
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May 07, 2026
375016
cuait
cuait
IndieSimulatorPuzzle
Single player
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About the Game
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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.

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Steam Itch.io
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Protocol: Umbra
Protocol: Umbra
2026 • cuait
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