
Thalassomania
Thalassomania is a PS1-style 4-player multiplayer psychological horror. Stranded on a derelict ship, you and your friends must navigate, repair, and steer the ship home while evading the lurking terror that is onboard with you. Can you survive, or will you become a lost soul in the sea’s abyss?
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Game contextLatest: IGF Team
| ContextThe evidence factors used to assess whether this game belongs on IndieGame.Fan. | Status | Notes Latest Contributor: IGF TeamEdit notes |
|---|---|---|
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Updated: Jul 11, 2026Publisher scaleThe operating scale of the game's publisher. | ||
Updated: Jul 11, 2026Publisher statusHow the game's publishing relationship is classified. | ||
Updated: Jul 11, 2026Release statusWhether and how the game has been released. |
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15 itemsAbout the Game
Thalassomania plunges you into a chilling PS1-inspired multiplayer horror experience where the open ocean becomes your worst nightmare. Stranded on a derelict ship, you and your friends must outwit, outmaneuver, and survive a relentless creature hunting you. Navigate, repair, scavenge, and steer the ship to safety while avoiding, hiding from, and outsmarting the lurking terror. Can you navigate the ship’s challenges and steer it to safety, or will you become just another lost soul in the sea’s dark abyss?

Team up with up to 4 players online or face the horror alone. Collaborate, communicate via voice chat, and strategize to manage ship functions, repair critical systems, and fend off the relentless creature that stalks you through every shadowy corner.

Immerse yourself in the chilling atmosphere of retro survival horror with chunky polygons, gritty textures, and moody lighting that harks back to the PS1 era. Feel the nostalgic dread as the low-res visuals bring a unique edge to the terror.

Encounter a mysterious humanoid creature that pursues, sabotages and adapts to your strategies. Outsmart, evade, and distract this nightmarish foe in a suspenseful game of cat-and-mouse where every move matters.

Take command of your ship operations including steering, engine maintenance, navigation, and resource management. Balance your focus between keeping the ship operational and dealing with the lurking horrors.

Experience a unique challenge every time you play with procedurally generated events and supernatural encounters. The ship’s layout, tasks, and the creature’s behavior adapt dynamically, ensuring no two journeys are ever the same.

Complete vital tasks under pressure to keep the ship functional. Solve puzzles, fix broken equipment, scavenge for supplies, and navigate through treacherous waters while evading the creature’s pursuit.

Immerse yourself in the eerie soundscape with a haunting soundtrack and ambient effects. Feel the ocean’s oppressive presence and the creature’s lurking threat with audio that heightens the fear and tension.
In Thalassomania, survival isn’t just about keeping the ship afloat—it's about outsmarting, evading, and surviving a relentless predator. Work together, stay silent, and navigate through your fear as you attempt to reach the safety of land. But remember, the creature is always watching, always hunting. Can you escape, outwit, and endure its clutches and find your way home?
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Team up with up to 4 players online or face the horror alone. Collaborate, communicate via voice chat, and strategize to manage ship functions, repair critical systems, and fend off the relentless creature that stalks you through every shadowy corner.

Immerse yourself in the chilling atmosphere of retro survival horror with chunky polygons, gritty textures, and moody lighting that harks back to the PS1 era. Feel the nostalgic dread as the low-res visuals bring a unique edge to the terror.

Encounter a mysterious humanoid creature that pursues, sabotages and adapts to your strategies. Outsmart, evade, and distract this nightmarish foe in a suspenseful game of cat-and-mouse where every move matters.

Take command of your ship operations including steering, engine maintenance, navigation, and resource management. Balance your focus between keeping the ship operational and dealing with the lurking horrors.

Experience a unique challenge every time you play with procedurally generated events and supernatural encounters. The ship’s layout, tasks, and the creature’s behavior adapt dynamically, ensuring no two journeys are ever the same.

Complete vital tasks under pressure to keep the ship functional. Solve puzzles, fix broken equipment, scavenge for supplies, and navigate through treacherous waters while evading the creature’s pursuit.

Immerse yourself in the eerie soundscape with a haunting soundtrack and ambient effects. Feel the ocean’s oppressive presence and the creature’s lurking threat with audio that heightens the fear and tension.
Survive the Stalker's Hunt
In Thalassomania, survival isn’t just about keeping the ship afloat—it's about outsmarting, evading, and surviving a relentless predator. Work together, stay silent, and navigate through your fear as you attempt to reach the safety of land. But remember, the creature is always watching, always hunting. Can you escape, outwit, and endure its clutches and find your way home?