Free War Games on Steam
Steam currently has 4,281 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 8/4/2025.
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 8,938,039 reviews on Steam. This breaks down to a total of 7,731,604 positive reviews and 1,206,435 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 61, placing it in the #2 spot for the best free War games. Its score was calculated by analyzing a total of 128,670 reviews on Steam. This breaks down to a total of 79,414 positive reviews and 49,256 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 1,432,482 reviews on Steam. This breaks down to a total of 1,191,626 positive reviews and 240,856 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. 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 #4 spot for the best free War games. Its score was calculated by analyzing a total of 642,605 reviews on Steam. This breaks down to a total of 469,344 positive reviews and 173,261 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 |
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 39,672 reviews on Steam. This breaks down to a total of 37,763 positive reviews and 1,909 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. 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 147,840 reviews on Steam. This breaks down to a total of 113,663 positive reviews and 34,177 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. 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 #7 spot for the best free War games. Its score was calculated by analyzing a total of 14,609 reviews on Steam. This breaks down to a total of 9,533 positive reviews and 5,076 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 |
8. Mecha BREAK
Squad up in Mecha BREAK, a multiplayer third-person shooter offering three intense game modes filled with ground and aerial combat. Pilot your Striker into the breach and neutralize enemies. Are you ready for the ultimate showdown?
Mecha BREAK has achieved a Player Score of 60, placing it in the #8 spot for the best free War games. Its score was calculated by analyzing a total of 22,457 reviews on Steam. This breaks down to a total of 13,538 positive reviews and 8,919 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Release Date | 7/2/2025 |
| Developers | |
| Publishers | |
| Steam App Id | 2452280 |
9. 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 #9 spot for the best free War games. Its score was calculated by analyzing a total of 148,857 reviews on Steam. This breaks down to a total of 116,760 positive reviews and 32,097 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 |
10. KARDS - The WW2 Card Game
KARDS, The World War II Card Game, combines traditional CCG gameplay with innovative mechanics inspired by classic strategy games and real battlefield tactics. Take command and challenge other players in grand-scale warfare on the ground, air, or seas.
KARDS - The WW2 Card Game has achieved a Player Score of 71, placing it in the #10 spot for the best free War games. Its score was calculated by analyzing a total of 41,389 reviews on Steam. This breaks down to a total of 29,752 positive reviews and 11,637 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is not possible to play or run KARDS - The WW2 Card Game on the Steam Deck.
| Release Date | 4/15/2020 |
| Developer | 1939 Games |
| Publisher | 1939 Games |
| Steam App Id | 544810 |
More Free War Games
Explore even more rankings for the 100 best free War games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 1,383,710 | 8/21/2012 | 86 | Free | Steam Charts | |
| 181,393 | 12/4/2024 | 61 | Free | Steam Charts | |
| 72,000 | 12/1/2015 | 83 | Free | Steam Charts | |
| 69,667 | 8/15/2013 | 73 | Free | Steam Charts | |
| 24,460 | 3/21/2022 | 93 | Free | Steam Charts | |
| 15,412 | 11/15/2017 | 76 | Free | Steam Charts | |
| 13,463 | 8/25/2021 | 64 | Free | Steam Charts | |
| 10,766 | 7/2/2025 | 60 | Free | Steam Charts | |
| 7,016 | 11/9/2016 | 78 | Free | Steam Charts | |
| 6,254 | 4/15/2020 | 71 | Free | Steam Charts | |
 | 6,122 | 4/6/2020 | 67 | Free | Steam Charts | |
 | 5,241 | 4/29/2021 | 81 | Free | Steam Charts | |
 | 4,541 | 10/15/2020 | 83 | Free | Steam Charts | |
 | 3,772 | 7/16/2024 | 79 | Free | Steam Charts | |
 | 3,530 | 12/15/2010 | 73 | Free | Steam Charts | |
 | 2,142 | 2/19/2020 | 79 | Free | Steam Charts | |
 | 1,560 | 4/4/2018 | 59 | Free | Steam Charts | |
 | 1,355 | 6/3/2019 | 66 | Free | Steam Charts | |
 | 1,308 | 1/25/2016 | 50 | Free | Steam Charts | |
 | 1,113 | 7/21/2022 | 56 | 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, August 4). Steam Store. Steam Store.
- Valve Corporation. (2025, August 4). Counter-Strike 2 on Steam. Steam Store.
- Valve Corporation. (2025, August 4). Delta Force on Steam. Steam Store.
- Valve Corporation. (2025, August 6). Tom Clancy's Rainbow Six® Siege X on Steam. Steam Store.
- Valve Corporation. (2025, August 6). War Thunder on Steam. Steam Store.
- Valve Corporation. (2025, August 5). OBS Studio on Steam. Steam Store.
- Valve Corporation. (2025, August 6). World of Warships on Steam. Steam Store.
- Valve Corporation. (2025, August 5). MIR4 on Steam. Steam Store.
- Valve Corporation. (2025, August 6). Mecha BREAK on Steam. Steam Store.
- Valve Corporation. (2025, August 6). World of Tanks Blitz on Steam. Steam Store.
- Valve Corporation. (2025, August 3). KARDS - The WW2 Card Game on Steam. Steam Store.