74%Strong matchZERO PROTOCOL
87%41187% positive reviews, Very Positive across 411 reviews·Survival Horror · Atmospheric
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Protocol 9‑9‑9 is compromised. Trapped in a high-tech facility twisted by ritual, Technician Keller discovers experiments that ran horribly wrong – sneak, survive, defend, and face horrors beyond reason in VR.
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ZombZerro999
SteamAbout ZombZerro999
Zomb Zerro 999 - A VR Horror Experience
Uncover what should never have been found.
Explore a secret mountain base where science and occult ritual collided—and something horrific awakened.
Zomb Zerro 999 is a psychological VR horror game blending immersive physics, tense survival, and atmospheric storytelling. Solve puzzles, face abominations, and survive long enough to uncover the truth buried beneath Ground Rock Station.
The Story
You are Samuel Keller – Technician [Keller 07], Clearance Level 2.
Deployed by O.A.R. Operations via teleport jump to Ground Rock Station, your directive is clear: restore critical systems and locate a signal anomaly.
But something went wrong.
You arrive to an empty facility… and something waiting.
Scattered logs suggest a ritual breach. A containment failure. Maybe worse.
Keller’s profile flags unauthorized override events—and prior knowledge of the facility.
His emotional state is marked unreadable.
He has a directive.
But maybe also a past.
Now you’re trapped underground. Alone.
And the things inside are no longer bound by science—or walls.
Features
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Dark & Unsettling Atmosphere – Explore a hidden mountain facility consumed by horror, ritual, and mystery.
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Physics-Based VR Immersion – Grab, throw, and interact with objects using natural motion controls.
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Tense, Purposeful Combat – Face enemies with limited ammo, fists, and improvised tools found in the environment.
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Resource Management – Manage scarce magazines and occasional essential items to survive.
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Integrated Puzzles – Solve environment-based challenges that block your progress or reveal secrets.
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Environmental Storytelling – Uncover notes, visuals, and subtle audio hints that deepen the mystery.
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Dynamic 3D Audio – Hear whispers, growls, and distant machinery with full spatial audio immersion.
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Quick-Access VR Menu – Switch weapons and tools without breaking immersion.
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Smart Autosave – Progress is automatically saved at key checkpoints.
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Comfort Options – Choose between smooth or snap turning, seated or standing play.
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Full VR Movement – Walk, sprint, jump, and climb through immersive 3D spaces.
Full Game Expansion
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Complete three-act storyline from eerie descent to confrontation
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Expanded combat encounters and puzzles
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Core weapon: the pistol, alongside improvised tools
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Deeper exploration of Ground Rock Station’s mystery
Prepare Yourself
Descend into Zomb Zerro 999 and face the nightmare.
Discover the truth… if you survive.
Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
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