Steam

Pressure Protocol

Also known as Pressure Protocol, pp, pressure protocol

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.

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Last update

24 Jun 2026

Latest update

AnnouncementPublished 28 Feb 2026

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 improvements

5 changesGameplayBalanceRead announcement

Update history

Browse past updates and patch notes for this game.

2 updates

February 2026
Pressure Protocol - Demo Available NowThe 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…Announcement2 changesServer13 Feb 2026

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New Demo Update - New Content & Bug Fixes

February 2026