Free Massively Multiplayer Games on Steam
Steam currently has 7,208 Massively Multiplayer 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 Massively Multiplayer game rankings were last updated on 5/2/2026.
Looking for more? Explore other lists such as:
- Best massively multiplayer games on Steam
- Best massively multiplayer Steam Deck games
- Best massively multiplayer Steam games for Mac OS
- Best massively multiplayer Linux games on Steam
- Free Steam games
- Most played Steam games
- Best rated Steam games
1. Bongo Cat
Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?
Bongo Cat holds the #1 spot for "best free Massively Multiplayer game on Steam" with a Player Score of 95. Its score was calculated by analyzing a total of 99,446 reviews on Steam. This breaks down to a total of 96,078 positive reviews and 3,368 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 possible to play Bongo Cat on the Steam Deck (though some functionality may be limited).
| Release Date | 3/5/2025 |
| Developers | |
| Publisher | Irox Games |
| Steam App Id | 3419430 |
2. Warframe
Awaken as an unstoppable warrior and battle alongside your friends in this story-driven free-to-play online action game
Warframe has achieved a Player Score of 87, placing it in the #2 spot for the best free Massively Multiplayer games. Its score was calculated by analyzing a total of 660,635 reviews on Steam. This breaks down to a total of 579,320 positive reviews and 81,315 negative reviews — making it "Very Positive" 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 | 3/25/2013 |
| Developer | Digital Extremes |
| Publisher | Digital Extremes |
| Steam App Id | 230410 |
3. VRChat
Join our growing community as you explore, play, and help craft the future of social VR. Create worlds and custom avatars. Welcome to VRChat.
VRChat has achieved a Player Score of 75, placing it in the #3 spot for the best free Massively Multiplayer games. Its score was calculated by analyzing a total of 261,306 reviews on Steam. This breaks down to a total of 196,836 positive reviews and 64,470 negative reviews — making it "Mostly Positive" 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 | 2/1/2017 |
| Developer | VRChat Inc. |
| Publisher | VRChat Inc. |
| Steam App Id | 438100 |
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 58, placing it in the #4 spot for the best free Massively Multiplayer games. Its score was calculated by analyzing a total of 180,956 reviews on Steam. This breaks down to a total of 105,469 positive reviews and 75,487 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. 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 Massively Multiplayer games. Its score was calculated by analyzing a total of 742,029 reviews on Steam. This breaks down to a total of 538,463 positive reviews and 203,566 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. Unturned
You're a survivor in the zombie infested ruins of society, and must work with your friends and forge alliances to remain among the living.
Unturned has achieved a Player Score of 90, placing it in the #6 spot for the best free Massively Multiplayer games. Its score was calculated by analyzing a total of 561,974 reviews on Steam. This breaks down to a total of 511,723 positive reviews and 50,251 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play Unturned on the Steam Deck (though some functionality may be limited).
| Release Date | 7/7/2017 |
| Developer | Smartly Dressed Games |
| Publisher | Smartly Dressed Games |
| Steam App Id | 304930 |
7. Where Winds Meet
Step into an open-world action-adventure RPG set in ancient China. Uncover the secrets of your own identity as you rise from a humble village wanderer to the sword master of the imperial capital. Learn martial arts and build your reputation as a hero or a bringer of chaos in this free wuxia world.
Where Winds Meet has achieved a Player Score of 86, placing it in the #7 spot for the best free Massively Multiplayer games. Its score was calculated by analyzing a total of 107,667 reviews on Steam. This breaks down to a total of 93,554 positive reviews and 14,113 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 Where Winds Meet on the Steam Deck (though some functionality may be limited).
| Release Date | 11/14/2025 |
| Developer | Everstone Studio |
| Publisher | NetEase Games |
| Steam App Id | 3564740 |
8. IdleOn
The management RPG where your heroes keep fighting even when you're gone! Spend their loot on upgrades, unlock classes from Elemental Wizard to Cannon Pirate, and level up 19 unique skills like Farming, Sailing, and even Construction!
IdleOn has achieved a Player Score of 77, placing it in the #8 spot for the best free Massively Multiplayer games. Its score was calculated by analyzing a total of 28,567 reviews on Steam. This breaks down to a total of 22,273 positive reviews and 6,294 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 IdleOn on the Steam Deck (though some functionality may be limited).
| Release Date | 11/6/2025 |
| Developer | Lavaflame2 |
| Publisher | Lavaflame2 |
| Steam App Id | 1476970 |
9. 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 #9 spot for the best free Massively Multiplayer games. Its score was calculated by analyzing a total of 14,830 reviews on Steam. This breaks down to a total of 9,698 positive reviews and 5,132 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 |
10. Destiny 2
Destiny 2 is an action MMO with a single evolving world that you and your friends can join anytime, anywhere, absolutely free.
Destiny 2 has achieved a Player Score of 77, placing it in the #10 spot for the best free Massively Multiplayer games. Its score was calculated by analyzing a total of 645,737 reviews on Steam. This breaks down to a total of 499,063 positive reviews and 146,674 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 Destiny 2 on the Steam Deck.
More Free Massively Multiplayer Games
Explore even more rankings for the 100 best free Massively Multiplayer games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 106,799 | 3/5/2025 | 95 | Free | Steam Charts | |
| 57,006 | 3/25/2013 | 87 | Free | Steam Charts | |
| 51,365 | 2/1/2017 | 75 | Free | Steam Charts | |
| 50,401 | 12/4/2024 | 58 | Free | Steam Charts | |
| 41,502 | 8/15/2013 | 72 | Free | Steam Charts | |
| 23,061 | 7/7/2017 | 90 | Free | Steam Charts | |
| 17,153 | 11/14/2025 | 86 | Free | Steam Charts | |
| 14,060 | 11/6/2025 | 77 | Free | Steam Charts | |
| 12,206 | 8/25/2021 | 65 | Free | Steam Charts | |
| 11,432 | 10/1/2019 | 77 | Free | Steam Charts | |
 | 11,275 | 10/23/2013 | 88 | Free | Steam Charts | |
 | 10,915 | 7/9/2024 | 77 | Free | Steam Charts | |
 | 9,894 | 7/17/2025 | 55 | Free | Steam Charts | |
 | 9,863 | 5/16/2018 | 78 | Free | Steam Charts | |
 | 6,589 | 8/27/2024 | 55 | Free | Steam Charts | |
 | 5,917 | 12/9/2022 | 73 | Free | Steam Charts | |
 | 5,837 | 7/21/2020 | 88 | Free | Steam Charts | |
 | 5,551 | 11/15/2017 | 76 | Free | Steam Charts | |
 | 5,244 | 3/13/2025 | 80 | Free | Steam Charts | |
 | 4,968 | 11/11/2021 | 59 | 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, May 2). Steam Store. Steam Store.
- Valve Corporation. (2026, May 2). Bongo Cat on Steam. Steam Store.
- Valve Corporation. (2026, May 1). Warframe on Steam. Steam Store.
- Valve Corporation. (2026, May 2). VRChat on Steam. Steam Store.
- Valve Corporation. (2026, May 2). Delta Force on Steam. Steam Store.
- Valve Corporation. (2026, May 1). War Thunder on Steam. Steam Store.
- Valve Corporation. (2026, May 1). Unturned on Steam. Steam Store.
- Valve Corporation. (2026, May 1). Where Winds Meet on Steam. Steam Store.
- Valve Corporation. (2026, April 28). IdleOn on Steam. Steam Store.
- Valve Corporation. (2026, April 28). MIR4 on Steam. Steam Store.
- Valve Corporation. (2026, May 2). Destiny 2 on Steam. Steam Store.