Free War Games on Steam
Steam currently has 4,188 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 6/26/2025.
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 8,859,308 reviews on Steam. This breaks down to a total of 7,676,969 positive reviews and 1,182,339 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. 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 #2 spot for the best free War games. Its score was calculated by analyzing a total of 1,417,192 reviews on Steam. This breaks down to a total of 1,181,972 positive reviews and 235,220 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 |
3. 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 73, placing it in the #3 spot for the best free War games. Its score was calculated by analyzing a total of 633,315 reviews on Steam. This breaks down to a total of 462,888 positive reviews and 170,427 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 |
4. 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 63, placing it in the #4 spot for the best free War games. Its score was calculated by analyzing a total of 118,235 reviews on Steam. This breaks down to a total of 74,510 positive reviews and 43,725 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 |
5. 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 #5 spot for the best free War games. Its score was calculated by analyzing a total of 37,915 reviews on Steam. This breaks down to a total of 36,102 positive reviews and 1,813 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 |
6. 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 #6 spot for the best free War games. Its score was calculated by analyzing a total of 14,576 reviews on Steam. This breaks down to a total of 9,512 positive reviews and 5,064 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 |
7. World of Tanks Blitz
Tanks, not war: jump into a free-to-play MMO action shooter with over 400 tanks. Enjoy stunning graphics and intuitive touch controls. Engage in 7vs7 battles, strategize with your team to conquer diverse maps. Customize tanks, unlock upgrades, and dive into adrenaline-pumping action on mobile and PC
World of Tanks Blitz has achieved a Player Score of 78, placing it in the #7 spot for the best free War games. Its score was calculated by analyzing a total of 148,473 reviews on Steam. This breaks down to a total of 116,578 positive reviews and 31,895 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on both Windows and Mac systems. At the moment, it is possible to play World of Tanks Blitz on the Steam Deck (though some functionality may be limited).
| Release Date | 11/9/2016 |
| Franchise | Wargaming Group Ltd. |
| Developer | Wargaming Group Limited |
| Publisher | Wargaming Group Limited |
| Steam App Id | 444200 |
8. World of Tanks
Jump into the free-to-play team-based shooter with an ever-expanding roster of historical vehicles, stunning graphics, spectacular locales, and orchestral scores. Show your mastery and face other players in thrilling PvP clashes. A unique mix of strategy and action awaits!
World of Tanks has achieved a Player Score of 81, placing it in the #8 spot for the best free War games. Its score was calculated by analyzing a total of 88,349 reviews on Steam. This breaks down to a total of 72,843 positive reviews and 15,506 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 | 4/28/2021 |
| Franchise | Wargaming Group Ltd. |
| Developer | Wargaming Group Limited |
| Publisher | Wargaming Group Limited |
| Steam App Id | 1407200 |
9. 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 #9 spot for the best free War games. Its score was calculated by analyzing a total of 146,995 reviews on Steam. This breaks down to a total of 113,168 positive reviews and 33,827 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 |
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 83, placing it in the #10 spot for the best free War games. Its score was calculated by analyzing a total of 48,643 reviews on Steam. This breaks down to a total of 41,224 positive reviews and 7,419 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 | ||||
|---|---|---|---|---|---|---|
| 1,145,616 | 8/21/2012 | 86 | Free | Steam Charts | |
| 108,298 | 12/1/2015 | 83 | Free | Steam Charts | |
| 79,970 | 8/15/2013 | 73 | Free | Steam Charts | |
| 59,336 | 12/4/2024 | 63 | Free | Steam Charts | |
| 17,288 | 3/21/2022 | 93 | Free | Steam Charts | |
| 13,113 | 8/25/2021 | 64 | Free | Steam Charts | |
| 11,037 | 11/9/2016 | 78 | Free | Steam Charts | |
| 6,845 | 4/28/2021 | 81 | Free | Steam Charts | |
| 6,219 | 11/15/2017 | 76 | Free | Steam Charts | |
| 5,501 | 10/15/2020 | 83 | Free | Steam Charts | |
 | 4,615 | 12/15/2010 | 73 | Free | Steam Charts | |
 | 4,366 | 7/16/2024 | 79 | Free | Steam Charts | |
 | 3,003 | 4/6/2020 | 68 | Free | Steam Charts | |
 | 2,567 | 2/19/2020 | 79 | Free | Steam Charts | |
 | 1,555 | 4/4/2018 | 60 | Free | Steam Charts | |
 | 1,545 | 1/25/2016 | 50 | Free | Steam Charts | |
 | 1,459 | 8/2/2013 | 84 | Free | Steam Charts | |
 | 1,375 | 4/15/2020 | 72 | Free | Steam Charts | |
 | 1,269 | 6/3/2019 | 66 | Free | Steam Charts | |
 | 1,144 | 11/20/2014 | 77 | 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, June 26). Steam Store. Steam Store.
- Valve Corporation. (2025, June 26). Counter-Strike 2 on Steam. Steam Store.
- Valve Corporation. (2025, June 29). Tom Clancy's Rainbow Six® Siege X on Steam. Steam Store.
- Valve Corporation. (2025, June 27). War Thunder on Steam. Steam Store.
- Valve Corporation. (2025, June 29). Delta Force on Steam. Steam Store.
- Valve Corporation. (2025, June 28). OBS Studio on Steam. Steam Store.
- Valve Corporation. (2025, June 25). MIR4 on Steam. Steam Store.
- Valve Corporation. (2025, June 25). World of Tanks Blitz on Steam. Steam Store.
- Valve Corporation. (2025, June 26). World of Tanks on Steam. Steam Store.
- Valve Corporation. (2025, June 27). World of Warships on Steam. Steam Store.
- Valve Corporation. (2025, June 26). Age of Empires III: Definitive Edition on Steam. Steam Store.