Free Co-op Campaign Games on Steam
Steam currently has 684 Co-op Campaign 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 Co-op Campaign game rankings were last updated on 4/10/2025.
Looking for more? Explore other lists such as:
- Best co-op campaign games on Steam
- Best co-op campaign Steam Deck games
- Best co-op campaign Steam games for Mac OS
- Best co-op campaign Linux games on Steam
- Free Steam games
- Most played Steam games
- Best rated Steam games
1. Dungeon Defenders II
Dungeon Defenders II is a cooperative Action Tower Defense game packed with roleplaying elements like loot, leveling, and pets.
Dungeon Defenders II holds the #1 spot for "best free Co-op Campaign game on Steam" with a Player Score of 76. Its score was calculated by analyzing a total of 21,767 reviews on Steam. This breaks down to a total of 16,847 positive reviews and 4,920 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 Dungeon Defenders II on the Steam Deck.
| Release Date | 6/20/2017 |
| Franchise | Chromatic Games |
| Developer | Chromatic Games |
| Publisher | Chromatic Games |
| Steam App Id | 236110 |
2. Infinity Kingdom
Conquer the city, discover the Infinity! Infinity Kingdom is a cartoon-style mmo strategy game. As a resourceful lord, you must defend the land of Norheim against the evil gnomes while protecting yourself from other invading players!
Infinity Kingdom has achieved a Player Score of 65, placing it in the #2 spot for the best free Co-op Campaign games. Its score was calculated by analyzing a total of 660 reviews on Steam. This breaks down to a total of 447 positive reviews and 213 negative reviews — making it "Mixed" on Steam.
It can be played and ran on both Windows and Mac systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Release Date | 7/2/2021 |
| Developer | YOUZU (SINGAPORE) PTE. LTD. |
| Publisher | YOUZU (SINGAPORE) PTE. LTD. |
| Steam App Id | 1573360 |
3. Project Entropy
Welcome, commander, to Project Entropy- an ultimate Sci-Fi and role-playing game with battles in space. In this immersive MMO experience, you will command alien civilizations, conquer uncharted planets, and build Hero fleets.
Project Entropy has achieved a Player Score of 52, placing it in the #3 spot for the best free Co-op Campaign games. Its score was calculated by analyzing a total of 102 reviews on Steam. This breaks down to a total of 54 positive reviews and 48 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 Project Entropy on the Steam Deck.
| Release Date | 4/17/2024 |
| Developer | FunPlus International AG |
| Publisher | FunPlus International AG |
| Steam App Id | 2806410 |
4. Armored Warfare
Wage war against players around the world with an unstoppable arsenal of powerful armored combat vehicles. Use 300+ vehicles to engage in furious PvP tank combat, complete co-op missions, and crush your enemies on breathtaking maps, from scorching deserts to neon-drenched urban jungles.
Armored Warfare has achieved a Player Score of 64, placing it in the #4 spot for the best free Co-op Campaign games. Its score was calculated by analyzing a total of 4,862 reviews on Steam. This breaks down to a total of 3,192 positive reviews and 1,670 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Armored Warfare on the Steam Deck (though some functionality may be limited).
| Release Date | 11/17/2017 |
| Franchise | Wishlist Games |
| Developers | |
| Publisher | Wishlist Games |
| Steam App Id | 443110 |
5. A.V.A Global
A.V.A is a classic FPS shooter game featuring various types game Modes. Depending on the battlefield, you can choose Pointman, Rifleman, and Sniper and enjoy strategic team play.
A.V.A Global has achieved a Player Score of 47, placing it in the #5 spot for the best free Co-op Campaign games. Its score was calculated by analyzing a total of 7,567 reviews on Steam. This breaks down to a total of 3,567 positive reviews and 4,000 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play A.V.A Global on the Steam Deck (though some functionality may be limited).
6. Escape Memoirs: Mini Stories
"Escape Memoirs: Mini Stories" is a series of co-operative escape-room style puzzle scenarios. Each one is sure to test your wits as you try to overcome the challenges that stand in the way of your escape.
Escape Memoirs: Mini Stories has achieved a Player Score of 82, placing it in the #6 spot for the best free Co-op Campaign games. Its score was calculated by analyzing a total of 5,299 reviews on Steam. This breaks down to a total of 4,495 positive reviews and 804 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 Escape Memoirs: Mini Stories on the Steam Deck (though some functionality may be limited).
| Release Date | 9/30/2022 |
| Franchise | 0 Deer Soft |
| Developer | 0 Deer Soft |
| Publishers | |
| Steam App Id | 2098350 |
7. We Were Here
Lost in a frozen wasteland and split up from your partner inside an abandoned castle, the only possession you have left is a walkie-talkie with a familiar voice on the other end. Can the two of you find your way out in time?
We Were Here has achieved a Player Score of 88, placing it in the #7 spot for the best free Co-op Campaign games. Its score was calculated by analyzing a total of 29,635 reviews on Steam. This breaks down to a total of 26,747 positive reviews and 2,888 negative reviews — making it "Very 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 We Were Here on the Steam Deck.
| Release Date | 2/3/2017 |
| Franchise | Total Mayhem Games |
| Developer | Total Mayhem Games |
| Publisher | Total Mayhem Games |
| Steam App Id | 582500 |
8. Pixel Puzzles Ultimate Jigsaw Puzzles
The Number 1 Jigsaw Puzzle Game.
Pixel Puzzles Ultimate Jigsaw Puzzles has achieved a Player Score of 73, placing it in the #8 spot for the best free Co-op Campaign games. Its score was calculated by analyzing a total of 2,664 reviews on Steam. This breaks down to a total of 2,007 positive reviews and 657 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 Pixel Puzzles Ultimate Jigsaw Puzzles on the Steam Deck (though some functionality may be limited).
| Release Date | 9/9/2016 |
| Developer | Pixel Puzzles |
| Publisher | Pixel Puzzles |
| Steam App Id | 351030 |
9. Unsolved Case
A new lead turns up old doubts about an 'Unsolved Case'. A trap, or a copycat killer? In this co-op puzzle game prequel to the award-winning Cryptic Killer series, put on your detective badges as you collaborate and communicate to crack the codes, solve the riddles, and catch the Cryptic Killer.
Unsolved Case has achieved a Player Score of 86, placing it in the #9 spot for the best free Co-op Campaign games. Its score was calculated by analyzing a total of 5,448 reviews on Steam. This breaks down to a total of 4,824 positive reviews and 624 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on both Windows and Mac systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
| Release Date | 11/24/2022 |
| Franchise | Eleven Puzzles |
| Developer | Eleven Puzzles |
| Publisher | Eleven Puzzles |
| Steam App Id | 2084050 |
10. Tales of Fablecraft
Tales of Fablecraft is a virtual tabletop RPG. It’s easy for GMs and players to learn, whether you've slain many dragons or are completely new to the genre. Fablecraft features its own system, gorgeous human-made art, pre-built campaigns that eliminate prep, and a growing list of homebrew tools.
Tales of Fablecraft has achieved a Player Score of 72, placing it in the #10 spot for the best free Co-op Campaign games. Its score was calculated by analyzing a total of 209 reviews on Steam. This breaks down to a total of 162 positive reviews and 47 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 Tales of Fablecraft on the Steam Deck (though some functionality may be limited).
| Release Date | 7/23/2024 |
| Developer | Riftweaver Game Studio |
| Publisher | Riftweaver Game Studio |
| Steam App Id | 2176900 |
More Free Co-op Campaign Games
Explore even more rankings for the 68 best free Co-op Campaign games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 215 | 6/20/2017 | 76 | Free | Steam Charts | |
| 178 | 7/2/2021 | 65 | Free | Steam Charts | |
| 115 | 4/17/2024 | 52 | Free | Steam Charts | |
| 107 | 11/17/2017 | 64 | Free | Steam Charts | |
| 91 | 8/23/2022 | 47 | Free | Steam Charts | |
| 69 | 9/30/2022 | 82 | Free | Steam Charts | |
| 63 | 2/3/2017 | 88 | Free | Steam Charts | |
| 53 | 9/9/2016 | 73 | Free | Steam Charts | |
| 31 | 11/24/2022 | 86 | Free | Steam Charts | |
| 15 | 7/23/2024 | 72 | Free | Steam Charts | |
 | 14 | 8/28/2020 | 82 | Free | Steam Charts | |
 | 11 | 1/18/2024 | 85 | Free | Steam Charts | |
 | 11 | 2/12/2023 | 79 | Free | Steam Charts | |
 | 10 | 4/3/2025 | 44 | Free | Steam Charts | |
 | 7 | 9/7/2021 | 61 | Free | Steam Charts | |
 | 6 | 6/13/2020 | 84 | Free | Steam Charts | |
 | 5 | 8/18/2015 | 90 | Free | Steam Charts | |
 | 4 | 5/4/2023 | 52 | Free | Steam Charts | |
 | 4 | 8/7/2023 | 90 | Free | Steam Charts | |
 | 3 | 5/6/2021 | 83 | 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, April 10). Steam Store. Steam Store.
- Valve Corporation. (2025, April 10). Dungeon Defenders II on Steam. Steam Store.
- Valve Corporation. (2025, April 3). Infinity Kingdom on Steam. Steam Store.
- Valve Corporation. (2025, April 13). Project Entropy on Steam. Steam Store.
- Valve Corporation. (2025, April 9). Armored Warfare on Steam. Steam Store.
- Valve Corporation. (2025, March 28). A.V.A Global on Steam. Steam Store.
- Valve Corporation. (2025, March 13). Escape Memoirs: Mini Stories on Steam. Steam Store.
- Valve Corporation. (2025, April 9). We Were Here on Steam. Steam Store.
- Valve Corporation. (2025, April 6). Pixel Puzzles Ultimate Jigsaw Puzzles on Steam. Steam Store.
- Valve Corporation. (2025, March 15). Unsolved Case on Steam. Steam Store.
- Valve Corporation. (2025, April 11). Tales of Fablecraft on Steam. Steam Store.