Free War Games on Steam
Steam currently has 4,957 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 4/22/2026.
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 9,554,302 reviews on Steam. This breaks down to a total of 8,232,843 positive reviews and 1,321,459 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
Rainbow Six® Siege 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 has achieved a Player Score of 82, placing it in the #2 spot for the best free War games. Its score was calculated by analyzing a total of 1,504,688 reviews on Steam. This breaks down to a total of 1,241,231 positive reviews and 263,457 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 on the Steam Deck.
| Release Date | 12/1/2015 |
| Franchise | Tom Clancy Franchise |
| Developer | Ubisoft Montreal |
| Publisher | Ubisoft |
| Steam App Id | 359550 |
3. 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 58, placing it in the #3 spot for the best free War games. Its score was calculated by analyzing a total of 179,948 reviews on Steam. This breaks down to a total of 104,923 positive reviews and 75,025 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 |
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 72, placing it in the #4 spot for the best free War games. Its score was calculated by analyzing a total of 738,701 reviews on Steam. This breaks down to a total of 537,575 positive reviews and 201,126 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. World of Warships
Immerse yourself in thrilling naval battles and assemble an armada of over 800 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 #5 spot for the best free War games. Its score was calculated by analyzing a total of 153,960 reviews on Steam. This breaks down to a total of 118,010 positive reviews and 35,950 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 |
6. 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 74, placing it in the #6 spot for the best free War games. Its score was calculated by analyzing a total of 52,251 reviews on Steam. This breaks down to a total of 38,931 positive reviews and 13,320 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 Arena Breakout: Infinite on the Steam Deck.
| Release Date | 9/16/2025 |
| Developer | Morefun Studios |
| Publisher | Morefun Studios |
| Steam App Id | 2073620 |
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 65, placing it in the #7 spot for the best free War games. Its score was calculated by analyzing a total of 14,821 reviews on Steam. This breaks down to a total of 9,691 positive reviews and 5,130 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. 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 #8 spot for the best free War games. Its score was calculated by analyzing a total of 50,842 reviews on Steam. This breaks down to a total of 48,415 positive reviews and 2,427 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 |
9. EVE Online
Over 20 years of legendary space battles! Explore a massive living universe of danger and opportunity in a challenging and highly rewarding space adventure. Fight, trade, build, and connect with a universe driven and shaped directly by players.
EVE Online has achieved a Player Score of 73, placing it in the #9 spot for the best free War games. Its score was calculated by analyzing a total of 38,542 reviews on Steam. This breaks down to a total of 28,330 positive reviews and 10,212 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 EVE Online on the Steam Deck (though some functionality may be limited).
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 53,003 reviews on Steam. This breaks down to a total of 45,285 positive reviews and 7,718 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 | ||||
|---|---|---|---|---|---|---|
| 683,702 | 8/21/2012 | 86 | Free | Steam Charts | |
| 72,981 | 12/1/2015 | 82 | Free | Steam Charts | |
| 33,690 | 12/4/2024 | 58 | Free | Steam Charts | |
| 31,484 | 8/15/2013 | 72 | Free | Steam Charts | |
| 22,294 | 11/15/2017 | 76 | Free | Steam Charts | |
| 18,095 | 9/16/2025 | 74 | Free | Steam Charts | |
| 12,338 | 8/25/2021 | 65 | Free | Steam Charts | |
| 11,745 | 3/21/2022 | 93 | Free | Steam Charts | |
| 3,591 | 12/16/2010 | 73 | Free | Steam Charts | |
| 3,051 | 10/15/2020 | 84 | Free | Steam Charts | |
 | 2,862 | 4/29/2021 | 80 | Free | Steam Charts | |
 | 2,336 | 4/16/2026 | 52 | Free | Steam Charts | |
 | 2,169 | 2/19/2020 | 78 | Free | Steam Charts | |
 | 2,001 | 7/16/2024 | 79 | Free | Steam Charts | |
 | 1,878 | 1/25/2016 | 51 | Free | Steam Charts | |
 | 1,720 | 11/9/2016 | 77 | Free | Steam Charts | |
 | 1,569 | 4/5/2026 | 26 | Free | Steam Charts | |
 | 1,261 | 4/4/2018 | 60 | Free | Steam Charts | |
 | 1,254 | 4/6/2020 | 67 | Free | Steam Charts | |
 | 712 | 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. (2026, April 22). Steam Store. Steam Store.
- Valve Corporation. (2026, April 22). Counter-Strike 2 on Steam. Steam Store.
- Valve Corporation. (2026, April 24). Tom Clancy's Rainbow Six Siege on Steam. Steam Store.
- Valve Corporation. (2026, April 23). Delta Force on Steam. Steam Store.
- Valve Corporation. (2026, April 23). War Thunder on Steam. Steam Store.
- Valve Corporation. (2026, April 22). World of Warships on Steam. Steam Store.
- Valve Corporation. (2026, April 23). Arena Breakout: Infinite on Steam. Steam Store.
- Valve Corporation. (2026, April 22). MIR4 on Steam. Steam Store.
- Valve Corporation. (2026, April 22). OBS Studio on Steam. Steam Store.
- Valve Corporation. (2026, April 22). EVE Online on Steam. Steam Store.
- Valve Corporation. (2026, April 23). Age of Empires III: Definitive Edition on Steam. Steam Store.