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Nightmariners header art

Nightmariners

NightMariners is a co-op horror adventure game where you sail across dark seas, explore cursed islands, and enter dangerous caves.

Steam Page
Release
May 15, 2026
78 days ago
Steam Reviews
5 user reviews5 reviews80.0%

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Latest Contributor: IGF TeamEdit notes
Updated: Jul 11, 2026Developer scaleThe operating scale of the game's developer.
Updated: Jul 11, 2026Publisher scaleThe operating scale of the game's publisher.
Updated: Jul 11, 2026Publisher statusHow the game's publishing relationship is classified.
Search Google: How is Nightmariners and Ocean's Call Studios funded?FundingThe known source of funding behind the game.
Search Google: Who controls the creative direction and IP for Nightmariners and Ocean's Call Studios?Creative controlWho appears to retain creative control of the game.
Updated: Jul 11, 2026Release statusWhether and how the game has been released.

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About the Game

NightMariners is a co-op horror adventure game set across dark seas, cursed islands, and dangerous caves.

Sail with your crew, reach mysterious islands, and enter deep caves by raft. Your goal is to find lost Core Fragments and bring them safely back to your ship.

But once a Core Fragment is taken, the island begins to change. Lights start to fail, navigation becomes harder, and creatures begin closing in. To survive, your crew must stay together, protect the carrier, and return to the ship before the darkness overwhelms you.

Key Features:

Co-op Horror Experience:

Play with your friends, complete missions as a crew, and try to survive dangerous islands together.

Ship and Raft Travel:

Sail across dark seas with your ship, reach mysterious islands, and continue deeper into caves by raft.

Core Fragment Missions:

Find lost Core Fragments, carry them back, and deliver them safely to your ship.

Rising Danger:

After taking a Core Fragment, the island becomes more hostile. Lights weaken, paths become harder to follow, and creature pressure increases.

Cave Exploration:

Explore dark, foggy, and dangerous caves. Stay alert and do not lose your way.

Teamwork:

Who will carry the fragment? Who will guide the way? Who will protect the crew? Every role matters.

Dark Atmosphere:

Experience rough seas, dim lights, cursed islands, and tense cave environments filled with danger.

In NightMariners, finding the fragment is only the beginning. Bringing it back is the real test.