Free Underwater Games on Steam
Steam currently has 641 Underwater games available to download and play. Explore our list of the best free games ranked by popularity and ratings. Data for this list is calculated from reviews and player counts reported directly by Steam and will be updated in real-time. Free Underwater game rankings were last updated on 4/27/2025.
Looking for more? Explore other lists such as:
- Best underwater games on Steam
- Best underwater Steam Deck games
- Best underwater Steam games for Mac OS
- Best underwater Linux games on Steam
- Free Steam games
- Most played Steam games
- Best rated Steam games
1. Infinite Blue
Discover an immersive ocean Eco-Sim where you can be almost any animal under the sea! From a tiny seahorse to a massive blue whale, experience the endless circle of life in a massive world of reefs, shipwrecks, and hidden wonders.
Infinite Blue holds the #1 spot for "best free Underwater game on Steam" with a Player Score of 65. Its score was calculated by analyzing a total of 207 reviews on Steam. This breaks down to a total of 143 positive reviews and 64 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
| Release Date | 9/30/2024 |
| Developer | Gluten Free Games |
| Publisher | Gluten Free Games |
| Steam App Id | 2775910 |
2. IronWolf: Free Non-VR Edition
This is the Free Non-VR version of IronWolf VR. A co-op submarine game with a light touch on realism, making the submarine sim genre accessible to a wider audience.
IronWolf: Free Non-VR Edition has achieved a Player Score of 88, placing it in the #2 spot for the best free Underwater games. Its score was calculated by analyzing a total of 535 reviews on Steam. This breaks down to a total of 504 positive reviews and 31 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play IronWolf: Free Non-VR Edition on the Steam Deck (though some functionality may be limited).
| Release Date | 9/14/2023 |
| Developer | Ionized Studios |
| Publisher | Ionized Studios |
| Steam App Id | 2530670 |
3. Swallow the Sea
You are a lowly egg cell on a journey through a swollen sea of strange and humanoid fish. Prey on smaller life and growing larger and stronger to perhaps someday be born.
Swallow the Sea has achieved a Player Score of 93, placing it in the #3 spot for the best free Underwater games. Its score was calculated by analyzing a total of 2,283 reviews on Steam. This breaks down to a total of 2,228 positive reviews and 55 negative reviews — making it "Overwhelmingly Positive" on Steam.
It can be played and ran on both Windows and Linux systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Release Date | 9/3/2021 |
| Franchise | ItsTheTalia |
| Developers | |
| Publisher | ItsTheTalia |
| Steam App Id | 1511860 |
4. Aquarist - My First Job
Get your first job in the Aquarist! Learn how to set up aquarium, decorate it and take care of your fish!
Aquarist - My First Job has achieved a Player Score of 60, placing it in the #4 spot for the best free Underwater games. Its score was calculated by analyzing a total of 112 reviews on Steam. This breaks down to a total of 71 positive reviews and 41 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Aquarist - My First Job on the Steam Deck (though some functionality may be limited).
| Release Date | 9/16/2021 |
| Developers | |
| Publishers | |
| Steam App Id | 1584660 |
5. Tidal Shock: Off The Hook
It's a wet and wild PvP shooter for 2-12 players! Hunt down foes on high-speed torpedoes, Outmaneuver rivals with 360° tactics, and master 4 high-stakes game modes in sprawling underwater arenas. Always free to play, never pay to win!
Tidal Shock: Off The Hook has achieved a Player Score of 77, placing it in the #5 spot for the best free Underwater games. Its score was calculated by analyzing a total of 65 reviews on Steam. This breaks down to a total of 57 positive reviews and 8 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on both Windows and Linux systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
| Release Date | 4/18/2025 |
| Developer | Moonray Studios |
| Publisher | Moonray Studios |
| Steam App Id | 1262890 |
6. INFLUXIS
Explore a mesmerizing alien world, filled with deep bioluminescent wonders and horrors alike. Old alien artefacts await uncovering, in your search for the lost crew of Lazarus, in the search for your family in the depths of planet Eo-III.
INFLUXIS has achieved a Player Score of 65, placing it in the #6 spot for the best free Underwater games. Its score was calculated by analyzing a total of 212 reviews on Steam. This breaks down to a total of 145 positive reviews and 67 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
| Release Date | 9/1/2020 |
| Developer | BaleYc Studios |
| Publisher | BaleYc Studios |
| Steam App Id | 1393830 |
7. Ocean Protector
Ocean Protector is a free online educational game that teaches students about the impacts of ocean acidification and how they can take action to prevent it.
Ocean Protector has achieved a Player Score of 64, placing it in the #7 spot for the best free Underwater games. Its score was calculated by analyzing a total of 9 reviews on Steam. This breaks down to a total of 7 positive reviews and 2 negative reviews — making it "9 user reviews" on Steam.
It can be played and ran on Windows, Mac, and Linux systems. At the moment, it is not possible to play or run Ocean Protector on the Steam Deck.
| Release Date | 8/30/2023 |
| Developer | Outreach Games |
| Publisher | Outreach Games |
| Steam App Id | 2553210 |
8. Pakicetus Redux
In deep-sea action-adventure game Pakicetus Redux, take command, choose your mission, and lead the escort submarine Salvation along a seafloor rift. Balance resource collection, upgrades, and the fate of human civilization as you battle an emerging enemy bent on stopping your search for a new home.
Pakicetus Redux has achieved a Player Score of 69, placing it in the #8 spot for the best free Underwater games. Its score was calculated by analyzing a total of 4 reviews on Steam. This breaks down to a total of 4 positive reviews and 0 negative reviews — making it "4 user reviews" on Steam.
It 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.
| Release Date | 4/11/2025 |
| Developers | |
| Publisher | Polymorphic Games |
| Steam App Id | 2069380 |
9. Dry Visit - Virtual Underwater Visit - iMARECulture
Thanks to the iMARECULTURE project, you can virtually dive into the 3D reconstructions of 3 of the most beautiful UW archaeological sites of the Mediterranean Sea: the UW Archaeological Park of Baiae (Naples, Italy), the Phoenician shipwreck of Xlendi (Gozo, Malta) and the Mazotos Shipwreck (Cyprus)
Dry Visit - Virtual Underwater Visit - iMARECulture has achieved a Player Score of 72, placing it in the #9 spot for the best free Underwater games. Its score was calculated by analyzing a total of 12 reviews on Steam. This breaks down to a total of 11 positive reviews and 1 negative reviews — making it "Positive" on Steam.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
| Release Date | 5/4/2020 |
| Developer | 3D Research Srl |
| Publisher | 3D Research Srl |
| Steam App Id | 1242830 |
10. CREAMARE - The Game
In CREAMARE: The Game, players take on the role of divers to explore 9 real underwater cultural sites in the Mediterranean Sea. They must defeat a monster from the future by solving ecological challenges and puzzles related to the history of these sites.
CREAMARE - The Game has achieved a Player Score of 48, placing it in the #10 spot for the best free Underwater games. Its score was calculated by analyzing a total of 11 reviews on Steam. This breaks down to a total of 5 positive reviews and 6 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
| Release Date | 3/31/2025 |
| Developer | 3D Research Srl |
| Publisher | CREAMARE Project |
| Steam App Id | 3154190 |
More Free Underwater Games
Explore even more rankings for the 76 best free Underwater games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 5 | 9/30/2024 | 65 | Free | Steam Charts | |
| 4 | 9/14/2023 | 88 | Free | Steam Charts | |
| 2 | 9/3/2021 | 93 | Free | Steam Charts | |
| 2 | 9/16/2021 | 60 | Free | Steam Charts | |
| 2 | 4/18/2025 | 77 | Free | Steam Charts | |
| 1 | 9/1/2020 | 65 | Free | Steam Charts | |
| 1 | 8/30/2023 | 64 | Free | Steam Charts | |
| 1 | 4/11/2025 | 69 | Free | Steam Charts | |
| 1 | 5/4/2020 | 72 | Free | Steam Charts | |
| 1 | 3/31/2025 | 48 | Free | Steam Charts | |
 | 1 | 3/22/2024 | 69 | Free | Steam Charts | |
 | 1 | 4/30/2025 | 64 | Free | Steam Charts | |
 | 1 | 9/9/2022 | 63 | Free | Steam Charts | |
 | 1 | 3/31/2021 | 83 | Free | Steam Charts | |
 | 1 | 7/15/2024 | 53 | Free | Steam Charts | |
 | 1 | 7/15/2024 | 70 | Free | Steam Charts | |
 | 1 | 5/31/2024 | 72 | Free | Steam Charts | |
 | 1 | 2/4/2025 | 67 | Free | Steam Charts | |
 | 1 | 1/2/2024 | 52 | Free | Steam Charts | |
 | 1 | 12/20/2024 | 56 | Free | Steam Charts |
Soures & References
Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Player counts 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, April 27). Steam Store. Steam Store.
- Valve Corporation. (2025, April 27). Infinite Blue on Steam. Steam Store.
- Valve Corporation. (2025, April 20). IronWolf: Free Non-VR Edition on Steam. Steam Store.
- Valve Corporation. (2025, April 7). Swallow the Sea on Steam. Steam Store.
- Valve Corporation. (2025, March 14). Aquarist - My First Job on Steam. Steam Store.
- Valve Corporation. (2025, May 2). Tidal Shock: Off The Hook on Steam. Steam Store.
- Valve Corporation. (2025, March 24). INFLUXIS on Steam. Steam Store.
- Valve Corporation. (2025, March 30). Ocean Protector on Steam. Steam Store.
- Valve Corporation. (2025, April 11). Pakicetus Redux on Steam. Steam Store.
- Valve Corporation. (2025, March 15). Dry Visit - Virtual Underwater Visit - iMARECulture on Steam. Steam Store.
- Valve Corporation. (2025, April 11). CREAMARE - The Game on Steam. Steam Store.