Free Submarine Games on Steam
Steam currently has 258 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 5/2/2026.
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
- Best submarine Linux games on Steam
- Free Steam games
- Most played Steam games
- Best rated Steam games
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 355 reviews on Steam. This breaks down to a total of 274 positive reviews and 81 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. FincrementalOS
Blast away with a submarine’s cannon and sort your desktop for minigames in this incremental fish shooting and simulated operating system hybrid!
FincrementalOS has achieved a Player Score of 71, placing it in the #2 spot for the best free Submarine games. Its score was calculated by analyzing a total of 5 reviews on Steam. This breaks down to a total of 5 positive reviews and 0 negative reviews — making it "5 user reviews" 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 | 5/1/2026 |
| Developer | Calamafia Studio |
| Publishers | |
| Steam App Id | 4408540 |
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 645 reviews on Steam. This breaks down to a total of 607 positive reviews and 38 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. 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 82, placing it in the #4 spot for the best free Submarine games. Its score was calculated by analyzing a total of 136 reviews on Steam. This breaks down to a total of 124 positive reviews and 12 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 |
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 62, placing it in the #5 spot for the best free Submarine games. Its score was calculated by analyzing a total of 8 reviews on Steam. This breaks down to a total of 6 positive reviews and 2 negative reviews — making it "8 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. 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 #6 spot for the best free Submarine games. Its score was calculated by analyzing a total of 526 reviews on Steam. This breaks down to a total of 237 positive reviews and 289 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 |
7. 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 62, placing it in the #7 spot for the best free Submarine games. Its score was calculated by analyzing a total of 169 reviews on Steam. This breaks down to a total of 110 positive reviews and 59 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 |
8. Where Jellyfish 水母在哪里
Search for 100 Jellyfish. A carefully hand drawn 4K scene filled with cute characters. The process is short and won't take up too much player time. You can choose your favorite dyeing for the convenience of color blind players. Extremely easy to achieve.
Where Jellyfish 水母在哪里 has achieved a Player Score of 90, placing it in the #8 spot for the best free Submarine games. Its score was calculated by analyzing a total of 440 reviews on Steam. This breaks down to a total of 427 positive reviews and 13 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 Where Jellyfish 水母在哪里 on the Steam Deck (though some functionality may be limited).
9. 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 81, placing it in the #9 spot for the best free Submarine games. Its score was calculated by analyzing a total of 181 reviews on Steam. This breaks down to a total of 162 positive reviews and 19 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 |
10. One Ping Only
A student built, subdued adventure game that will take the player to unseen depths utilizing a unique and novel approach to vision and clarity.
One Ping Only has achieved a Player Score of 84, placing it in the #10 spot for the best free Submarine games. Its score was calculated by analyzing a total of 251 reviews on Steam. This breaks down to a total of 232 positive reviews and 19 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 | 4/14/2018 |
| Developer | Triconn Games |
| Publisher | Triconn Games |
| Steam App Id | 828030 |
More Free Submarine Games
Explore even more rankings for the 40 best free Submarine games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 12 | 11/24/2023 | 73 | Free | Steam Charts | |
| 9 | 5/1/2026 | 71 | Free | Steam Charts | |
| 3 | 9/14/2023 | 88 | Free | Steam Charts | |
| 2 | 10/1/2025 | 82 | Free | Steam Charts | |
| 2 | 8/14/2024 | 62 | Free | Steam Charts | |
| 2 | 6/15/2025 | 46 | Free | Steam Charts | |
| 2 | 1/24/2024 | 62 | Free | Steam Charts | |
| 1 | 12/21/2023 | 90 | Free | Steam Charts | |
| 1 | 8/25/2025 | 81 | Free | Steam Charts | |
| 1 | 4/14/2018 | 84 | Free | Steam Charts | |
 | 1 | 10/20/2023 | 78 | Free | Steam Charts | |
 | 1 | 7/27/2020 | 41 | Free | Steam Charts | |
 | 1 | 8/31/2022 | 67 | Free | Steam Charts | |
 | 1 | 11/29/2022 | 59 | Free | Steam Charts | |
 | 1 | 9/9/2022 | 63 | Free | Steam Charts | |
 | 1 | 6/9/2023 | 94 | Free | Steam Charts | |
 | 1 | 3/31/2021 | 83 | Free | Steam Charts | |
 | 1 | 7/15/2024 | 67 | Free | Steam Charts | |
 | 1 | 4/8/2026 | 67 | Free | Steam Charts | |
 | 1 | 3/28/2023 | 65 | 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. (2026, May 2). Steam Store. Steam Store.
- Valve Corporation. (2026, May 2). Retro Commander on Steam. Steam Store.
- Valve Corporation. (2026, May 2). FincrementalOS on Steam. Steam Store.
- Valve Corporation. (2026, April 22). IronWolf: Free Non-VR Edition on Steam. Steam Store.
- Valve Corporation. (2026, April 3). Sync Or Sink on Steam. Steam Store.
- Valve Corporation. (2025, October 10). Marine Quest on Steam. Steam Store.
- Valve Corporation. (2026, April 5). Dread Not on Steam. Steam Store.
- Valve Corporation. (2026, April 3). 无畏舰队：炮火战争（Noah City:Rise of the conqueror） on Steam. Steam Store.
- Valve Corporation. (2026, April 3). Where Jellyfish 水母在哪里 on Steam. Steam Store.
- Valve Corporation. (2026, April 20). Watertight on Steam. Steam Store.
- Valve Corporation. (2025, November 3). One Ping Only on Steam. Steam Store.