Best Underwater Games on Steam (for Mac OS)
Steam currently has 670 Underwater games, but not all of them are able to be played on Mac. Explore our list of the best picks ranked by Player Score. Our Player Score rankings are calculated directly from reviews left on the Steam store and will be updated in real-time as more players leave their feedback. Underwater game rankings were last updated on 7/12/2025.
Looking for more? Explore other lists such as:
- Best underwater games on Steam
- Best underwater Steam Deck games
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- Free underwater games on Steam
- Free Steam games
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- Best rated Steam games
1. Subnautica
Descend into the depths of an alien underwater world filled with wonder and peril. Craft equipment, pilot submarines and out-smart wildlife to explore lush coral reefs, volcanoes, cave systems, and more - all while trying to survive.
Subnautica holds the #1 spot for "best Mac OS Underwater game on Steam" with a Player Score of 96. Its score was calculated by analyzing a total of 317,212 reviews on Steam. This breaks down to a total of 307,690 positive reviews and 9,522 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $29.99 to play and can be played and ran on both Windows and Mac systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Steam Price | $29.99 |
| Release Date | 1/24/2018 |
| Franchise | Unknown Worlds |
| Developer | Unknown Worlds Entertainment |
| Publishers | |
| Steam App Id | 264710 |
2. DAVE THE DIVER
DAVE THE DIVER is a casual, singleplayer adventure RPG featuring deep-sea exploration and fishing during the day and sushi restaurant management at night. Join Dave and his quirky friends as they seek to uncover the secrets of the mysterious Blue Hole.
DAVE THE DIVER has achieved a Player Score of 96, placing it in the #2 spot for the best Mac OS Underwater games. Its score was calculated by analyzing a total of 133,069 reviews on Steam. This breaks down to a total of 128,975 positive reviews and 4,094 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $19.99 to play and can be played and ran on both Windows and Mac systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Steam Price | $19.99 |
| Release Date | 6/28/2023 |
| Developer | MINTROCKET |
| Publisher | MINTROCKET |
| Steam App Id | 1868140 |
3. Loddlenaut
Play as an interstellar custodian sent to clean up a polluted ocean planet. Pick up trash, explore the vibrant waters, and take care of axolotl-like alien creatures!
Loddlenaut has achieved a Player Score of 94, placing it in the #3 spot for the best Mac OS Underwater games. Its score was calculated by analyzing a total of 4,583 reviews on Steam. This breaks down to a total of 4,496 positive reviews and 87 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $19.99 to play and can be played and ran on both Windows and Mac systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Steam Price | $19.99 |
| Release Date | 11/16/2023 |
| Franchise | Secret Mode |
| Developer | Moon Lagoon |
| Publisher | Secret Mode |
| Steam App Id | 1644940 |
4. Barotrauma
Barotrauma is a 2D co-op submarine simulator – in space, with survival horror and RPG elements. Steer your submarine, complete missions, fight monsters, fix leaks, operate machinery, man the guns and craft items, and stay alert: danger in Barotrauma doesn’t announce itself!
Barotrauma has achieved a Player Score of 92, placing it in the #4 spot for the best Mac OS Underwater games. Its score was calculated by analyzing a total of 76,585 reviews on Steam. This breaks down to a total of 71,877 positive reviews and 4,708 negative reviews — making it "Very Positive" on Steam.
It is priced at $17.49 to play and can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play Barotrauma on the Steam Deck (though some functionality may be limited).
| Steam Price | $17.49 |
| Release Date | 3/13/2023 |
| Franchise | Daedalic Entertainment |
| Developers | |
| Publisher | Daedalic Entertainment |
| Steam App Id | 602960 |
5. Pools
Walking simulator. Explore, admire and listen. Uncanny. Relaxing. Unnerving. Eerie. Immersive. No monsters chasing you or jumping towards at your screen, but can feel oppressive at times by invoking fears of getting lost, the dark, tight spaces and liminal space architecture. Inspired by backrooms.
Pools has achieved a Player Score of 92, placing it in the #5 spot for the best Mac OS Underwater games. Its score was calculated by analyzing a total of 4,870 reviews on Steam. This breaks down to a total of 4,641 positive reviews and 229 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $9.79 to play and can be played and ran on Windows, Mac, and Linux systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Steam Price | $9.79 |
| Release Date | 4/26/2024 |
| Franchise | UNIKAT Label |
| Developer | Tensori |
| Publishers | |
| Steam App Id | 2663530 |
6. Megaquarium
The public aquarium simulator. Design your displays, look after your fish, manage your staff and keep your guests happy! It's all in a day's work as the curator of your very own Megaquarium.
Megaquarium has achieved a Player Score of 91, placing it in the #6 spot for the best Mac OS Underwater games. Its score was calculated by analyzing a total of 3,403 reviews on Steam. This breaks down to a total of 3,238 positive reviews and 165 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $7.49 to play and can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play Megaquarium on the Steam Deck (though some functionality may be limited).
| Steam Price | $7.49 |
| Release Date | 9/13/2018 |
| Developer | Twice Circled |
| Publisher | Twice Circled |
| Steam App Id | 600480 |
7. Tiny Aquarium: Social Fishkeeping
A happy aquarium that lives at the bottom of your screen! Tiny Aquarium is a social idle simulator that keeps growing, even when offline. Hatch, sell fish, decorate, go fishin’, and visit your friends’ aquariums with bite-sized daily sessions.
Tiny Aquarium: Social Fishkeeping has achieved a Player Score of 91, placing it in the #7 spot for the best Mac OS Underwater games. Its score was calculated by analyzing a total of 1,194 reviews on Steam. This breaks down to a total of 1,150 positive reviews and 44 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $4.99 to play and can be played and ran on Windows, Mac, and Linux systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
| Steam Price | $4.99 |
| Release Date | 6/23/2025 |
| Franchise | Gamersky Games |
| Developer | Lunheim Studios |
| Publishers | |
| Steam App Id | 2581950 |
8. Chillquarium
Chillquarium is a cozy and relaxing idle game. Buy fish and raise them in real time, then sell them to turn a profit! Customize your aquarium as you progress from a simple starter tank to your dream setup by filling your collection with rare exotic fish and ultra-rare color variants!
Chillquarium has achieved a Player Score of 90, placing it in the #8 spot for the best Mac OS Underwater games. Its score was calculated by analyzing a total of 7,281 reviews on Steam. This breaks down to a total of 6,764 positive reviews and 517 negative reviews — making it "Very Positive" on Steam.
It is priced at $5.99 to play and can be played and ran on both Windows and Mac systems. At the moment, it is possible to play Chillquarium on the Steam Deck (though some functionality may be limited).
9. Subnautica: Below Zero
Dive into a freezing underwater adventure on an alien planet. Below Zero is set two years after the original Subnautica. Return to Planet 4546B to uncover the truth behind a deadly cover-up. Survive by building habitats, crafting tools, & diving deeper into the world of Subnautica.
Subnautica: Below Zero has achieved a Player Score of 89, placing it in the #9 spot for the best Mac OS Underwater games. Its score was calculated by analyzing a total of 97,344 reviews on Steam. This breaks down to a total of 88,096 positive reviews and 9,248 negative reviews — making it "Very Positive" on Steam.
It is priced at $29.99 to play and can be played and ran on both Windows and Mac systems. At the moment, it is possible to play Subnautica: Below Zero on the Steam Deck (though some functionality may be limited).
| Steam Price | $29.99 |
| Release Date | 5/14/2021 |
| Franchise | KRAFTON, Inc. |
| Developer | Unknown Worlds Entertainment |
| Publishers | |
| Steam App Id | 848450 |
10. Cast n Chill
Cast n Chill is a cozy idle (and active) fishing game where you explore serene lakes, rivers, and oceans. Catch rare fish, upgrade your gear and reel in legendary catches - all with your loyal companion by your side.
Cast n Chill has achieved a Player Score of 89, placing it in the #10 spot for the best Mac OS Underwater games. Its score was calculated by analyzing a total of 2,273 reviews on Steam. This breaks down to a total of 2,116 positive reviews and 157 negative reviews — making it "Very Positive" on Steam.
It is priced at $14.99 to play and can be played and ran on both Windows and Mac systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Steam Price | $14.99 |
| Release Date | 6/16/2025 |
| Developer | Wombat Brawler |
| Publisher | Wombat Brawler |
| Steam App Id | 3483740 |
More Underwater Mac Games on Steam
Explore even more rankings for the 10 best Underwater games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 3,854 | 1/24/2018 | 96 | $29.99 | Steam Charts | |
| 3,337 | 6/28/2023 | 96 | $19.99 | Steam Charts | |
| 33 | 11/16/2023 | 94 | $19.99 | Steam Charts | |
| 2,060 | 3/13/2023 | 92 | $17.49 | Steam Charts | |
| 21 | 4/26/2024 | 92 | $9.79 | Steam Charts | |
| 58 | 9/13/2018 | 91 | $7.49 | Steam Charts | |
| 630 | 6/23/2025 | 91 | $4.99 | Steam Charts | |
| 485 | 9/6/2023 | 90 | $5.99 | Steam Charts | |
| 914 | 5/14/2021 | 89 | $29.99 | Steam Charts | |
| 403 | 6/16/2025 | 89 | $14.99 | Steam Charts |
Soures & References
Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Reviews and rankings are enriched, analyzed, and updated in real-time to ensure we surface the most up-to-date insights. Learn more about the Steambase approach to data collection and our review methodology.
- Valve Corporation. (2025, July 12). Steam Store. Steam Store.
- Valve Corporation. (2025, July 12). Subnautica on Steam. Steam Store.
- Valve Corporation. (2025, July 11). DAVE THE DIVER on Steam. Steam Store.
- Valve Corporation. (2025, July 10). Loddlenaut on Steam. Steam Store.
- Valve Corporation. (2025, July 12). Barotrauma on Steam. Steam Store.
- Valve Corporation. (2025, July 12). Pools on Steam. Steam Store.
- Valve Corporation. (2025, July 5). Megaquarium on Steam. Steam Store.
- Valve Corporation. (2025, July 13). Tiny Aquarium: Social Fishkeeping on Steam. Steam Store.
- Valve Corporation. (2025, July 12). Chillquarium on Steam. Steam Store.
- Valve Corporation. (2025, July 14). Subnautica: Below Zero on Steam. Steam Store.
- Valve Corporation. (2025, June 30). Cast n Chill on Steam. Steam Store.