Steam

Zomb Zerro - 999

Also known as Zomb Zerro - 999, steam:3303340, zomb zerro 999

Trapped inside a high-tech facility warped by ritual, technician Keller must survive the aftermath of experiments gone horribly wrong.

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Last update

31 May 2026

Latest update

Patch notesPublished 04 Sept 2025

Small Demo Update

Patch Notes - Demo Update This update addresses several smaller issues reported since the demo launch. Fixes: Minor visual and interaction bugs resolved Small gameplay inconsistencies corrected General stability improve…

4 changesFixGameplayRead patch notes

Update history

Browse past updates and patch notes for this game.

3 updates

August 2025
The doors to Zomb Zerro 999 have opened. You weren’t supposed to be here yet. But now that you are... This demo gives you a brief glimpse into the systems beneath the surface. It’s not the full horror — just enough to u…2 changesGameplayStore05 Aug 2025
July 2025
Zomb Zerro 999 – Demo Launches August 25 We’re excited to announce that the demo for Zomb Zerro 999 will be available on August 25 - right here on Steam! Explore. Investigate. Survive. In this story-driven VR horror exp…2 changesGameplayPatch notes05 Jul 2025

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Small Demo Update

August 2025

July 2025