This jam is now over. It ran from 2026-03-01 12:00:00 to 2026-03-11 11:00:00. View results

The ocean is ancient, oppressive, and full of things that were never meant to be seen.
Underwater Horror Jam 3 invites you to descend once more past the light, past safety, and into whatever is waiting below.


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This jam is about underwater horror in all its forms. Claustrophobic dives, impossible structures, silent watchers in the dark, or the slow realization that something is aware of you. Whether you’re trapped in a failing submersible or drifting alone in open water, the fear should come from the depths themselves.

At least 85% of the game must take place underwater.
Submersibles, diving suits, cameras, free swimming, whatever you'd like... How the player explores is your choice. But the horror must remain submerged.


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Any engine. Any style.
Focus on atmosphere, immersion, and the dread of being somewhere humans don’t belong.

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Secret Themes

Eldritch Monstrosities

"Terror Lake"


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Make it unsettling.
Make it immersive.
Make it deep.

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Discord Link

Click Me!



Submissions(13)

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Browser playable (5)
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Windows (6)
macOS (2)
Linux (2)
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Visual Novel
Can you slay the mermaid?
Action
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an underwater horror experience. scavage for artifacts, and save your daughter.
Adventure
Survival
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Demoproject for a the underwater horror game jam 3
Adventure
Operate the aging DES - 1533 to navigate your way through the bottom of a cursed ocean.
Survival
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O TERROR DAS PROFUNDEZAS
Platformer
Play in browser