Screenshots
Watch trailer on Steam ↗Pressure Protocol
ZenoLithic · Published by ZenoLithic
Content notice: Pressure Protocol includes scenes of intense horror, blood, and violent creature encounters. The monster can ambush players, drag them away, and kill them. Some sequences will show blood and moderate gore.
Last updated 28 Sept 2026
A 1-4 player co-op survival horror game set in a collapsing underwater facility where a relentless creature hunts you and your crew through the dark.
Action, Indie · More free games
Explore the depths of a collapsing facility with up to three friends in this intense co-op survival horror experience from ZenoLithic. Navigate treacherous corridors and face off against an unrelenting creature hunting your crew.
About this game
In Pressure Protocol, 1-4 players fight to escape an underwater facility on the verge of collapse. Power is failing. Pressure is rising. A creature stalks you and your team every step. Crawl through the vents, coordinate, and carefully manage your tools as the environment and the monster work against you. Survive or drown in the dark.
System Requirements
Will my PC run this? →Minimum
- OS: Windows 10 (64-bit)
- Processor: Intel i5 or AMD equivalent
- Memory: 8 GB RAM
- Graphics: Nvidia GTX 1060 or equivalent
- Network: Broadband Internet connection
- Storage: 2 GB available space
- Sound Card: Any
Recommended
- Network: Broadband Internet connection
Supported Languages
*languages with full audio support
Latest news
Patch NotesOfficial
New Demo Update - New Content & Bug Fixes
Major Demo Update Now Live• Spectator Mode added• Main Lab expanded• New stamina system• Health & healing mechanics• Improved enemy balance (no more instant kills)• Bug fixes & stability improvementsRead full article on Community Announcements (Dino Panda)AnnouncementsOfficial
Pressure Protocol - Demo Available Now
The official demo for Pressure Protocol is now live ahead of Steam Next Fest.Descend into a failing deep-sea research facility where something has begun responding to your presence. Restore power, navigate the facility, and survive long enough to uncover what lies beneath.This early demo gives players their first hands-on experience with the world of Pressure Protocol. Multiplayer support and additional content will continue expanding over time.Wishlist now and experience the descent.Read full article on Community Announcements (Dino Panda)
