Thalassomania Demo

About the game

Co-op PS1 horror on a North Sea trawler for 1-4 players. Fish, steer through the storm, keep the engine alive and watch the cameras while the jobs split you up. There's one more aboard than there should be, and you'll hear it before you see it.

Current players

123

Updated Nov 2, 5:35 PM

24hr peak

285

Highest count in the last 24 hours

All time peak

340

Highest count in recorded history

Player history

713 observations in viewHistorical player data prior to Sept 2026 is from steamcharts.com.Oct 28, 2026, 5:05 PM – Nov 2, 2026, 5:35 PM

Game details

Rankings: Most Played#2,624 Popular Releases#88
Developer: OffTheHookGames
Publisher: OffTheHookGames
Release date: Oct 28, 2026, 4:04 PM
Languages: English
Price: Free to play
Platforms: Windows
macOS
Features: Feature names
Single-player
Multi-player
Co-op
Online Co-op
LAN Co-op
Cross-Platform Multiplayer
Camera Comfort
Custom Volume Controls
#category_contrast_controls
Tags: Horror Online Co-Op Fishing Survival Horror First-Person