Free Underwater Games on Steam
Steam currently has 801 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 12/30/2025.
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
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1. Shrimp.io
A Shrimp Based Bullet Heaven. Kill creatures, Level up & pick from 3 upgrades to unalive thousands more.
Shrimp.io holds the #1 spot for "best free Underwater game on Steam" with a Player Score of 78. Its score was calculated by analyzing a total of 258 reviews on Steam. This breaks down to a total of 218 positive reviews and 40 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 Shrimp.io on the Steam Deck (though some functionality may be limited).
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 622 reviews on Steam. This breaks down to a total of 587 positive reviews and 35 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. 疯狂炮炮捕鱼
超爽福利版《疯狂炮炮捕鱼》闪亮登场，经典捕鱼玩法，十万倍率满屏BOSS，金币狂爆不停。每天送金币，每周有活动，创意捕鱼玩法，升级养成分数比拼一战到底。
疯狂炮炮捕鱼 has achieved a Player Score of 66, placing it in the #3 spot for the best free Underwater games. Its score was calculated by analyzing a total of 425 reviews on Steam. This breaks down to a total of 296 positive reviews and 129 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play 疯狂炮炮捕鱼 on the Steam Deck (though some functionality may be limited).
4. Dread Not
Avoid your watery grave in this asymmetrical co-op horror game where you and a friend take the roles of a submarine Pilot and Mechanic. Work together to repair the ship, solve puzzles, avoid a deadly creature, and make it back to the surface before time runs out! It's time to Sync or Swim
Dread Not has achieved a Player Score of 46, placing it in the #4 spot for the best free Underwater games. Its score was calculated by analyzing a total of 508 reviews on Steam. This breaks down to a total of 229 positive reviews and 279 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 | 6/15/2025 |
| Developer | Leviathan Interactive |
| Publisher | Leviathan Interactive |
| Steam App Id | 3616560 |
5. 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 63, placing it in the #5 spot for the best free Underwater games. Its score was calculated by analyzing a total of 245 reviews on Steam. This breaks down to a total of 163 positive reviews and 82 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 | 1/26/2026 |
| Developer | BaleYc Studios |
| Publisher | BaleYc Studios |
| Steam App Id | 1393830 |
6. Oceans
Adapt your Species to survive and thrive in the Oceans depths in this turn-based strategy game based on the hit board game Oceans.
Oceans has achieved a Player Score of 60, placing it in the #6 spot for the best free Underwater games. Its score was calculated by analyzing a total of 63 reviews on Steam. This breaks down to a total of 40 positive reviews and 23 negative reviews — making it "Mixed" on Steam.
It can be played and ran on both Windows and Mac systems. At the moment, it is possible to play Oceans on the Steam Deck (though some functionality may be limited).
| Release Date | 11/16/2022 |
| Developers | |
| Publisher | North Star Games |
| Steam App Id | 1945310 |
7. Together in Forgotten Lands: Chapter One
Two souls, one destiny. Embark on a co-op adventure through a forgotten land, where teamwork and wit are the only way to navigate the wonders and dangers of a magical cave.
Together in Forgotten Lands: Chapter One has achieved a Player Score of 82, placing it in the #7 spot for the best free Underwater games. Its score was calculated by analyzing a total of 204 reviews on Steam. This breaks down to a total of 183 positive reviews and 21 negative reviews — making it "Very 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 | 8/18/2025 |
| Developer | Vellichor Games |
| Publisher | Vellichor Games |
| Steam App Id | 3723610 |
8. Tempo
A rhythm platforming game but instead of staying on the beat… you play at your own beat!
Tempo has achieved a Player Score of 72, placing it in the #8 spot for the best free Underwater games. Its score was calculated by analyzing a total of 166 reviews on Steam. This breaks down to a total of 129 positive reviews and 37 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play Tempo on the Steam Deck (though some functionality may be limited).
| Release Date | 11/1/2021 |
| Developers | |
| Publisher | Aestronauts |
| Steam App Id | 1445240 |
9. Delfini
Delfini is a gentle and delicate two-player cooperative ocean exploration game, it is about a moving journey where two dolphins bravely save the polluted coral reef island.
Delfini has achieved a Player Score of 64, placing it in the #9 spot for the best free Underwater games. Its score was calculated by analyzing a total of 16 reviews on Steam. This breaks down to a total of 12 positive reviews and 4 negative reviews — making it "Mostly 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 | 7/26/2025 |
| Developer | Yimeng & Yuwei |
| Publisher | Shepherd Games |
| Steam App Id | 3785590 |
10. Pearls of Atlantis: The Cove
Color match in a whole new way! Drop, pop, swap and match magic pearls to collect the charms inside and rebuild the hidden Cove of Memories!
Pearls of Atlantis: The Cove has achieved a Player Score of 71, placing it in the #10 spot for the best free Underwater games. Its score was calculated by analyzing a total of 46 reviews on Steam. This breaks down to a total of 37 positive reviews and 9 negative reviews — making it "Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Pearls of Atlantis: The Cove on the Steam Deck (though some functionality may be limited).
| Release Date | 2/15/2024 |
| Developer | Alder Games |
| Publisher | Legacy Games |
| Steam App Id | 2678160 |
More Free Underwater Games
Explore even more rankings for the 94 best free Underwater games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 64 | 2/13/2024 | 78 | Free | Steam Charts | |
| 5 | 9/14/2023 | 88 | Free | Steam Charts | |
| 4 | 10/22/2021 | 66 | Free | Steam Charts | |
| 3 | 6/15/2025 | 46 | Free | Steam Charts | |
| 2 | 1/26/2026 | 63 | Free | Steam Charts | |
| 2 | 11/16/2022 | 60 | Free | Steam Charts | |
| 2 | 8/18/2025 | 82 | Free | Steam Charts | |
| 2 | 11/1/2021 | 72 | Free | Steam Charts | |
| 2 | 7/26/2025 | 64 | Free | Steam Charts | |
| 2 | 2/15/2024 | 71 | Free | Steam Charts | |
 | 1 | 3/25/2024 | 68 | Free | Steam Charts | |
 | 1 | 3/22/2024 | 70 | Free | Steam Charts | |
 | 1 | 5/9/2022 | 72 | Free | Steam Charts | |
 | 1 | 12/8/2023 | 78 | Free | Steam Charts | |
 | 1 | 9/18/2023 | 63 | Free | Steam Charts | |
 | 1 | 11/4/2024 | 55 | Free | Steam Charts | |
 | 1 | 3/22/2024 | 67 | Free | Steam Charts | |
 | 1 | 4/11/2025 | 67 | Free | Steam Charts | |
 | 1 | 2/11/2021 | 57 | Free | Steam Charts | |
 | 1 | 1/30/2026 | 62 | 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, December 30). Steam Store. Steam Store.
- Valve Corporation. (2025, December 30). Shrimp.io on Steam. Steam Store.
- Valve Corporation. (2025, October 4). IronWolf: Free Non-VR Edition on Steam. Steam Store.
- Valve Corporation. (2024, September 22). 疯狂炮炮捕鱼 on Steam. Steam Store.
- Valve Corporation. (2026, February 16). Dread Not on Steam. Steam Store.
- Valve Corporation. (2026, February 13). INFLUXIS on Steam. Steam Store.
- Valve Corporation. (2026, January 24). Oceans on Steam. Steam Store.
- Valve Corporation. (2025, December 26). Together in Forgotten Lands: Chapter One on Steam. Steam Store.
- Valve Corporation. (2025, October 5). Tempo on Steam. Steam Store.
- Valve Corporation. (2026, January 28). Delfini on Steam. Steam Store.
- Valve Corporation. (2026, January 7). Pearls of Atlantis: The Cove on Steam. Steam Store.