Free War Games on Steam
Steam currently has 4,392 War 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 War game rankings were last updated on 9/29/2025.
Looking for more? Explore other lists such as:
- Best war games on Steam
- Best war Steam Deck games
- Best war Steam games for Mac OS
- Best war Linux games on Steam
- Free Steam games
- Most played Steam games
- Best rated Steam games
1. Counter-Strike 2
For over two decades, Counter-Strike has offered an elite competitive experience, one shaped by millions of players from across the globe. And now the next chapter in the CS story is about to begin. This is Counter-Strike 2.
Counter-Strike 2 holds the #1 spot for "best free War game on Steam" with a Player Score of 86. Its score was calculated by analyzing a total of 9,049,371 reviews on Steam. This breaks down to a total of 7,821,144 positive reviews and 1,228,227 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on both Windows and Linux systems. At the moment, it is possible to play Counter-Strike 2 on the Steam Deck (though some functionality may be limited).
2. Delta Force
Delta Force, a free-to-play 1st-person tactical shooter, returns as the latest in the classic series. With 25 years defining the genre, Delta Force is back with an upgraded arsenal of weaponry, jaw-dropping environments, and a truly dynamic world.
Delta Force has achieved a Player Score of 60, placing it in the #2 spot for the best free War games. Its score was calculated by analyzing a total of 143,038 reviews on Steam. This breaks down to a total of 86,722 positive reviews and 56,316 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 Delta Force on the Steam Deck.
| Release Date | 12/4/2024 |
| Developers | |
| Publisher | TiMi Studio Group |
| Steam App Id | 2507950 |
3. Tom Clancy's Rainbow Six® Siege X
Rainbow Six Siege X is the reference in tactical team shooters, where elite strategy and execution triumph. Enjoy free access to Quick Match, Unranked and Dual Front game modes with a selection of operators.
Tom Clancy's Rainbow Six® Siege X has achieved a Player Score of 83, placing it in the #3 spot for the best free War games. Its score was calculated by analyzing a total of 1,447,752 reviews on Steam. This breaks down to a total of 1,201,612 positive reviews and 246,140 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is not possible to play or run Tom Clancy's Rainbow Six® Siege X on the Steam Deck.
| Release Date | 12/1/2015 |
| Developer | Ubisoft Montreal |
| Publisher | Ubisoft |
| Steam App Id | 359550 |
4. Arena Breakout: Infinite
Arena Breakout: Infinite is a high-stakes tactical extraction shooter where every decision matters. Fight, loot, and extract—or lose it all. With stunningly realistic visuals, lifelike sound, and unforgiving PvPvE combat, every raid is a gamble between glory and ruin.
Arena Breakout: Infinite has achieved a Player Score of 78, placing it in the #4 spot for the best free War games. Its score was calculated by analyzing a total of 12,551 reviews on Steam. This breaks down to a total of 10,066 positive reviews and 2,485 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 | 9/16/2025 |
| Developer | Morefun Studios |
| Publisher | Morefun Studios |
| Steam App Id | 2073620 |
5. War Thunder
War Thunder is the most comprehensive free-to-play, cross-platform, MMO military game dedicated to aviation, armoured vehicles, and naval craft, from the early 20th century to the most advanced modern combat units. Join now and take part in major battles on land, in the air, and at sea.
War Thunder has achieved a Player Score of 72, placing it in the #5 spot for the best free War games. Its score was calculated by analyzing a total of 662,526 reviews on Steam. This breaks down to a total of 481,799 positive reviews and 180,727 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on Windows, Mac, and Linux systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Release Date | 8/15/2013 |
| Franchise | Gaijin Network Ltd |
| Developer | Gaijin Entertainment |
| Publishers | |
| Steam App Id | 236390 |
6. World of Warships
Immerse yourself in thrilling naval battles and assemble an armada of over 600 ships from the first half of the 20th century — from stealthy destroyers to gigantic battleships. Change the look of your ship, choose upgrades to suit your play style, and go into battle with other players!
World of Warships has achieved a Player Score of 76, placing it in the #6 spot for the best free War games. Its score was calculated by analyzing a total of 149,169 reviews on Steam. This breaks down to a total of 114,439 positive reviews and 34,730 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 World of Warships on the Steam Deck (though some functionality may be limited).
| Release Date | 11/15/2017 |
| Franchise | World of Warships Franchise |
| Developer | Wargaming Group Limited |
| Publisher | Wargaming Group Limited |
| Steam App Id | 552990 |
7. OBS Studio
Free and open-source software for video recording and live streaming
OBS Studio has achieved a Player Score of 93, placing it in the #7 spot for the best free War games. Its score was calculated by analyzing a total of 41,629 reviews on Steam. This breaks down to a total of 39,616 positive reviews and 2,013 negative reviews — making it "Overwhelmingly Positive" on Steam.
It can be played and ran on both Windows and Mac systems. At the moment, it is not possible to play or run OBS Studio on the Steam Deck.
| Release Date | 3/21/2022 |
| Developer | OBS Project |
| Publisher | OBS Project |
| Steam App Id | 1905180 |
8. MIR4
MIR4 is a free-to-play open world K-fantasy MMORPG that can be cross-played on both PC and mobile devices. MIR4 is full of action and features numerous large scale clan PVP battles. Join now and become a legend.
MIR4 has achieved a Player Score of 64, placing it in the #8 spot for the best free War games. Its score was calculated by analyzing a total of 14,668 reviews on Steam. This breaks down to a total of 9,581 positive reviews and 5,087 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 MIR4 on the Steam Deck.
| Release Date | 8/25/2021 |
| Developer | Wemade Next |
| Publisher | Wemade |
| Steam App Id | 1623660 |
9. World of Tanks
World of Tanks is a tactical action game with very different gameplay depending on the vehicle type and role. Aside from regular PvP, there are competitive and clan-based modes, special PvE and PvPvE events, and much more. Whether you play to dominate or just enjoy the ride, you'll fit right in.
World of Tanks has achieved a Player Score of 81, placing it in the #9 spot for the best free War games. Its score was calculated by analyzing a total of 91,776 reviews on Steam. This breaks down to a total of 74,927 positive reviews and 16,849 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 World of Tanks on the Steam Deck (though some functionality may be limited).
| Release Date | 4/29/2021 |
| Franchise | Wargaming Group Ltd. |
| Developer | Wargaming Group Limited |
| Publisher | Wargaming Group Limited |
| Steam App Id | 1407200 |
10. Age of Empires III: Definitive Edition
Age of Empires III: Definitive Edition offers players a trial of this historical single & multiplayer RTS experience. *Note: To unlock all features of the game please see the “Base Game” product.
Age of Empires III: Definitive Edition has achieved a Player Score of 84, placing it in the #10 spot for the best free War games. Its score was calculated by analyzing a total of 50,123 reviews on Steam. This breaks down to a total of 42,566 positive reviews and 7,557 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 Age of Empires III: Definitive Edition on the Steam Deck (though some functionality may be limited).
| Release Date | 10/15/2020 |
| Franchise | Age of Empires Franchise |
| Developers | |
| Publisher | Xbox Game Studios |
| Steam App Id | 933110 |
More Free War Games
Explore even more rankings for the 100 best free War games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 602,480 | 8/21/2012 | 86 | Free | Steam Charts | |
| 54,675 | 12/4/2024 | 60 | Free | Steam Charts | |
| 45,308 | 12/1/2015 | 83 | Free | Steam Charts | |
| 42,410 | 9/16/2025 | 78 | Free | Steam Charts | |
| 33,632 | 8/15/2013 | 72 | Free | Steam Charts | |
| 14,580 | 11/15/2017 | 76 | Free | Steam Charts | |
| 9,640 | 3/21/2022 | 93 | Free | Steam Charts | |
| 6,225 | 8/25/2021 | 64 | Free | Steam Charts | |
| 4,326 | 4/29/2021 | 81 | Free | Steam Charts | |
| 3,209 | 10/15/2020 | 84 | Free | Steam Charts | |
 | 2,808 | 12/15/2010 | 72 | Free | Steam Charts | |
 | 2,449 | 7/16/2024 | 79 | Free | Steam Charts | |
 | 2,432 | 7/2/2025 | 59 | Free | Steam Charts | |
 | 2,056 | 11/9/2016 | 78 | Free | Steam Charts | |
 | 1,874 | 2/19/2020 | 79 | Free | Steam Charts | |
 | 1,830 | 4/6/2020 | 67 | Free | Steam Charts | |
 | 1,473 | 1/25/2016 | 50 | Free | Steam Charts | |
 | 1,379 | 4/15/2020 | 70 | Free | Steam Charts | |
 | 1,119 | 4/4/2018 | 59 | Free | Steam Charts | |
 | 761 | 6/3/2019 | 66 | 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, September 29). Steam Store. Steam Store.
- Valve Corporation. (2025, September 29). Counter-Strike 2 on Steam. Steam Store.
- Valve Corporation. (2025, September 29). Delta Force on Steam. Steam Store.
- Valve Corporation. (2025, September 30). Tom Clancy's Rainbow Six® Siege X on Steam. Steam Store.
- Valve Corporation. (2025, September 29). Arena Breakout: Infinite on Steam. Steam Store.
- Valve Corporation. (2025, September 29). War Thunder on Steam. Steam Store.
- Valve Corporation. (2025, September 29). World of Warships on Steam. Steam Store.
- Valve Corporation. (2025, September 27). OBS Studio on Steam. Steam Store.
- Valve Corporation. (2025, September 30). MIR4 on Steam. Steam Store.
- Valve Corporation. (2025, September 29). World of Tanks on Steam. Steam Store.
- Valve Corporation. (2025, September 27). Age of Empires III: Definitive Edition on Steam. Steam Store.