Free Submarine Games on Steam
Steam currently has 234 Submarine 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 Submarine game rankings were last updated on 12/12/2025.
Looking for more? Explore other lists such as:
- Best submarine games on Steam
- Best submarine Steam Deck games
- Best submarine Steam games for Mac OS
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- Free Steam games
- Most played Steam games
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1. Retro Commander
Retro Commander is a post-apocalyptic real-time strategy wargame (RTS).
Retro Commander holds the #1 spot for "best free Submarine game on Steam" with a Player Score of 73. Its score was calculated by analyzing a total of 337 reviews on Steam. This breaks down to a total of 261 positive reviews and 76 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 Retro Commander on the Steam Deck (though some functionality may be limited).
| Release Date | 11/24/2023 |
| Developer | Noble Master LLC |
| Publisher | Noble Master LLC |
| Steam App Id | 338820 |
2. 无畏舰队：炮火战争（Noah City:Rise of the conqueror）
Noah City:Rise of the conqueror is a SLG game. It takes place in an alternative reality where a great naval war is spreading all over the world. it focus on developing players’ gears and finding a comfortable pace of the gameplay, players who are fond of SLG games, you certainly cannot miss it!
无畏舰队：炮火战争（Noah City:Rise of the conqueror） has achieved a Player Score of 63, placing it in the #2 spot for the best free Submarine games. Its score was calculated by analyzing a total of 166 reviews on Steam. This breaks down to a total of 111 positive reviews and 55 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is not possible to play or run 无畏舰队：炮火战争（Noah City:Rise of the conqueror） on the Steam Deck.
| Release Date | 1/24/2024 |
| Developer | LEOPARD STORM |
| Publisher | LEOPARD STORM |
| Steam App Id | 2676820 |
3. 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 #3 spot for the best free Submarine games. Its score was calculated by analyzing a total of 607 reviews on Steam. This breaks down to a total of 574 positive reviews and 33 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 |
4. Watertight
A short first-person horror game. An accident cripples your submarine while trying to find the wreck of the Titanic. In the darkness, you must restore life-support systems through tense puzzles, only to discover that you are not alone.
Watertight has achieved a Player Score of 80, placing it in the #4 spot for the best free Submarine games. Its score was calculated by analyzing a total of 151 reviews on Steam. This breaks down to a total of 134 positive reviews and 17 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 | 8/25/2025 |
| Developer | Tiny Studio |
| Publisher | Tiny Studio |
| Steam App Id | 3858990 |
5. Marine Quest
Simple turn-based RPG where you make your way across different marine-based landscapes, fighting several harmful species or objects in a quest to save the ocean.
Marine Quest has achieved a Player Score of 64, placing it in the #5 spot for the best free Submarine 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 systems. At the moment, it is possible to play Marine Quest on the Steam Deck (though some functionality may be limited).
| Release Date | 8/14/2024 |
| Developer | Greg Terteryan |
| Publisher | GT_Eternity Studios |
| Steam App Id | 3120860 |
6. Sync Or Sink
Trapped in a sinking submarine, two players must communicate through walkie-talkies to solve puzzles, complete tasks, navigate the depths, and escape before time runs out.
Sync Or Sink has achieved a Player Score of 81, placing it in the #6 spot for the best free Submarine games. Its score was calculated by analyzing a total of 117 reviews on Steam. This breaks down to a total of 106 positive reviews and 11 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 | 10/1/2025 |
| Developer | Low Effort Interactive |
| Publisher | Low Effort Interactive |
| Steam App Id | 3626910 |
7. 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 45, placing it in the #7 spot for the best free Submarine games. Its score was calculated by analyzing a total of 491 reviews on Steam. This breaks down to a total of 219 positive reviews and 272 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 |
8. Under Pressure
Flee or hunt? It’s up to you! Under Pressure is an asymmetric card game! To win you will need to strategize and guess.
Under Pressure has achieved a Player Score of 77, placing it in the #8 spot for the best free Submarine games. Its score was calculated by analyzing a total of 19 reviews on Steam. This breaks down to a total of 18 positive reviews and 1 negative reviews — making it "Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Under Pressure on the Steam Deck (though some functionality may be limited).
| Release Date | 7/14/2023 |
| Developer | Hibo Studios |
| Publisher | Hibo Studios |
| Steam App Id | 2483950 |
9. Operation: Forge the Deep
Solve real materials science problems, contribute to science, and survive a new ice age in a puzzle adventure that combines engineering problems with a unique puzzle that will challenge how you look at the world around you.
Operation: Forge the Deep has achieved a Player Score of 59, placing it in the #9 spot for the best free Submarine games. Its score was calculated by analyzing a total of 12 reviews on Steam. This breaks down to a total of 8 positive reviews and 4 negative reviews — making it "Mixed" on Steam.
It can be played and ran on both Windows and Mac systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
| Release Date | 11/28/2022 |
| Developer | BYU Materials Innovation Lab |
| Publisher | BYU Mechanical Engineering |
| Steam App Id | 2053100 |
10. Pelagos: A Marine Adventure
Dive into Pelagos: Snap, Learn & Explore Marine Ecosystems!
Pelagos: A Marine Adventure has achieved a Player Score of 65, placing it in the #10 spot for the best free Submarine games. Its score was calculated by analyzing a total of 23 reviews on Steam. This breaks down to a total of 17 positive reviews and 6 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Pelagos: A Marine Adventure on the Steam Deck (though some functionality may be limited).
| Release Date | 11/20/2023 |
| Developer | Rishi Garhyan |
| Publisher | Rishi Garhyan |
| Steam App Id | 2645390 |
More Free Submarine Games
Explore even more rankings for the 38 best free Submarine games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 6 | 11/24/2023 | 73 | Free | Steam Charts | |
| 4 | 1/24/2024 | 63 | Free | Steam Charts | |
| 4 | 9/14/2023 | 88 | Free | Steam Charts | |
| 3 | 8/25/2025 | 80 | Free | Steam Charts | |
| 2 | 8/14/2024 | 64 | Free | Steam Charts | |
| 2 | 10/1/2025 | 81 | Free | Steam Charts | |
| 2 | 6/15/2025 | 45 | Free | Steam Charts | |
| 1 | 7/14/2023 | 77 | Free | Steam Charts | |
| 1 | 11/28/2022 | 59 | Free | Steam Charts | |
| 1 | 11/20/2023 | 65 | Free | Steam Charts | |
 | 1 | 3/31/2021 | 83 | Free | Steam Charts | |
 | 1 | 2/16/2022 | 71 | Free | Steam Charts | |
 | 1 | 5/30/2025 | 44 | Free | Steam Charts | |
 | 1 | 11/4/2024 | 55 | Free | Steam Charts | |
 | 1 | 11/1/2024 | 50 | Free | Steam Charts | |
 | 1 | 6/9/2023 | 94 | Free | Steam Charts | |
 | 1 | 12/21/2023 | 90 | Free | Steam Charts | |
 | 1 | 4/14/2018 | 84 | Free | Steam Charts | |
 | 1 | 9/6/2023 | 82 | Free | Steam Charts | |
 | 1 | 5/16/2023 | 48 | 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 12). Steam Store. Steam Store.
- Valve Corporation. (2025, December 12). Retro Commander on Steam. Steam Store.
- Valve Corporation. (2025, November 8). 无畏舰队：炮火战争（Noah City:Rise of the conqueror） on Steam. Steam Store.
- Valve Corporation. (2025, October 4). IronWolf: Free Non-VR Edition on Steam. Steam Store.
- Valve Corporation. (2025, November 25). Watertight on Steam. Steam Store.
- Valve Corporation. (2025, October 10). Marine Quest on Steam. Steam Store.
- Valve Corporation. (2025, December 13). Sync Or Sink on Steam. Steam Store.
- Valve Corporation. (2025, December 2). Dread Not on Steam. Steam Store.
- Valve Corporation. (2025, November 22). Under Pressure on Steam. Steam Store.
- Valve Corporation. (2025, November 29). Operation: Forge the Deep on Steam. Steam Store.
- Valve Corporation. (2025, December 6). Pelagos: A Marine Adventure on Steam. Steam Store.