Free Submarine Games on Steam
Steam currently has 245 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 3/8/2026.
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. 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 holds the #1 spot for "best free Submarine game on Steam" with a Player Score of 88. Its score was calculated by analyzing a total of 633 reviews on Steam. This breaks down to a total of 596 positive reviews and 37 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 |
2. Retro Commander
Retro Commander is a post-apocalyptic real-time strategy wargame (RTS).
Retro Commander has achieved a Player Score of 73, placing it in the #2 spot for the best free Submarine games. Its score was calculated by analyzing a total of 353 reviews on Steam. This breaks down to a total of 273 positive reviews and 80 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 |
3. Ellisar
Dive into this magical underwater adventure. Explore a corrupted environment moving with your two transformations to help fix the disaster that almost ended life around your world. Ellisar is a third person contemplative exploration and adventure game.
Ellisar has achieved a Player Score of 71, placing it in the #3 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 128 positive reviews and 38 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 | 5/9/2022 |
| Developer | Cogames Studio |
| Publisher | Cogames Studio |
| Steam App Id | 1940310 |
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 81, placing it in the #4 spot for the best free Submarine games. Its score was calculated by analyzing a total of 130 reviews on Steam. This breaks down to a total of 118 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 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. 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 #6 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 111 positive reviews and 58 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 |
7. Harmonic Depths
Embark on a relaxing journey in an underwater realm. Glide through captivating environments, embracing the tranquility of exploration and survival found in these Harmonic Depths.
Harmonic Depths has achieved a Player Score of 78, placing it in the #7 spot for the best free Submarine games. Its score was calculated by analyzing a total of 14 reviews on Steam. This breaks down to a total of 14 positive reviews and 0 negative reviews — making it "Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Harmonic Depths on the Steam Deck (though some functionality may be limited).
8. Subtension
Outfit, crew and command your submarine to save what's left of humanity beneath the seas of a ruined earth. Man your sub's systems and take aim in this real-time strategy epic! Inspired by FTL, this subnautic student project serves as our first 2-semester release.
Subtension has achieved a Player Score of 67, placing it in the #8 spot for the best free Submarine games. Its score was calculated by analyzing a total of 11 reviews on Steam. This breaks down to a total of 9 positive reviews and 2 negative reviews — making it "Positive" 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 | 3/28/2023 |
| Developer | WolverineSoft Studio |
| Publisher | WolverineSoft |
| Steam App Id | 2251660 |
9. 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 45, placing it in the #9 spot for the best free Submarine games. Its score was calculated by analyzing a total of 31 reviews on Steam. This breaks down to a total of 13 positive reviews and 18 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 | 5/30/2025 |
| Developer | 3D Research Srl |
| Publisher | CREAMARE Project |
| Steam App Id | 3154190 |
10. 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 #10 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 |
More Free Submarine Games
Explore even more rankings for the 38 best free Submarine games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 5 | 9/14/2023 | 88 | Free | Steam Charts | |
| 3 | 11/24/2023 | 73 | Free | Steam Charts | |
| 2 | 5/9/2022 | 71 | Free | Steam Charts | |
| 2 | 10/1/2025 | 81 | Free | Steam Charts | |
| 2 | 8/14/2024 | 64 | Free | Steam Charts | |
| 2 | 1/24/2024 | 62 | Free | Steam Charts | |
| 1 | 12/8/2023 | 78 | Free | Steam Charts | |
| 1 | 3/28/2023 | 67 | Free | Steam Charts | |
| 1 | 5/30/2025 | 45 | Free | Steam Charts | |
| 1 | 11/28/2022 | 59 | Free | Steam Charts | |
 | 1 | 10/20/2023 | 78 | Free | Steam Charts | |
 | 1 | 4/11/2025 | 67 | Free | Steam Charts | |
 | 1 | 5/29/2022 | 75 | Free | Steam Charts | |
 | 1 | 6/15/2025 | 46 | Free | Steam Charts | |
 | 1 | 9/6/2023 | 80 | Free | Steam Charts | |
 | 1 | 5/16/2023 | 50 | Free | Steam Charts | |
 | 1 | 8/31/2022 | 67 | Free | Steam Charts | |
 | 1 | 1/26/2026 | 63 | Free | Steam Charts | |
 | 1 | 11/2/2024 | 48 | Free | Steam Charts | |
 | 1 | 12/21/2023 | 90 | 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, March 8). Steam Store. Steam Store.
- Valve Corporation. (2026, March 8). IronWolf: Free Non-VR Edition on Steam. Steam Store.
- Valve Corporation. (2026, March 15). Retro Commander on Steam. Steam Store.
- Valve Corporation. (2025, September 1). Ellisar on Steam. Steam Store.
- Valve Corporation. (2026, March 18). Sync Or Sink on Steam. Steam Store.
- Valve Corporation. (2025, October 10). Marine Quest 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 31). Harmonic Depths on Steam. Steam Store.
- Valve Corporation. (2025, September 28). Subtension on Steam. Steam Store.
- Valve Corporation. (2026, January 6). CREAMARE - The Game on Steam. Steam Store.
- Valve Corporation. (2025, November 29). Operation: Forge the Deep on Steam. Steam Store.