Online co-op Underwater games

Every online co-op Underwater game on Steam we know of, newest first. Add tags or a price band to narrow it down.

Showing 41–50 of 53 games matching Underwater · updated 12 Oct 2026

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Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
74% of 189

Real VR Fishing recreates real-world locations. Start across 40 maps, then expand to 95 fishing spots and 300+ species through DLC. Cast, feel every bite, and build your own aquarium — solo or with up to 3 friends. Pure, relaxing catch-and-release, in VR.

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Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
74% of 2,321

「IfSunSets」 is a survival RPG adventure game. During the day, secure necessary supplies across the island, and survive the night against strong and terrifying monsters that track you down. You can utilize resources you've secured to build a base to fend off threatening monsters.

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Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
58% of 232

Eden Island is a beautiful survival game. As a survivor, you will explore and survive on a realistic tropical island, craft weapons against beasts, farm and hunt, build your own home.

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$
Released
Price
$ · Cheap
Players
👥 Up to 5 players
Reviews
100% of 9

Somnium Tenebris is a 5-player, investigative horror game set in a Lovecraftian world. Explore the depths of the ocean with your team as you uncover evidence in your efforts to identify the megalithic creature... and escape before it's too late.

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Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
58% of 70

UBOAT: The Silent Wolf is an amazing combination of a role-playing game and a simulator, offering a deep and immersive experience, allowing you to feel like a real submarine captain during World War II.

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Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
100% of 1

Explore Islands and the ocean in a Singleplayer or a Coop adventure. Relaxing gameplay, music and hundreds of unique activities to do. Whether you are an Explorer of the unknown, a Farmer that wants to tend to thousand of crops or someone who enjoys combat through boss battles. This game is for you.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
100% of 4

Classic snake game with modern rules and infinite exciting. Play alone or with friends to fight against AI. The classic snake game reimagined with modern rules for infinite excitement. Battle the AI alone or with friends to become ruler of the seas.

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$$
Released
Price
$$ · Standard
Players
👥 Up to 5 players
Reviews
93% of 129

Clash claws and flip opponents belly-up in physics-based crab battles! Combine dual-wielded weaponry with multiple fighting stances to create a custom fighting style. Bash, blast, scoop and pummel enemies onto their backs to achieve victory!

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$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
76% of 384

While searching for a new home, an unexpected failure in your ship has left you stranded on a planet surprisingly similar to Earth. Discover a vast open world, hunt for food, develop technologies, and build yourself a new home to survive!

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