Protocol: Umbra
May 8, 2026
Main 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.
- Developers
- cuait
- Publishers
- cuait
- Event
- ZNT Horizon 2025
- Platforms
- PC (Microsoft Windows)
- Genres
- Indie, Puzzle, Simulator
- Themes
- Horror
- Steam
- View on Steam
Release Dates
Oct 08, 2025 Alpha (Worldwide)
PC (Microsoft Windows)
May 08, 2026 Full Release (Worldwide)
PC (Microsoft Windows)
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How Long Is Protocol: Umbra?
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