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Check out the top 10 free-to-play co-op games you can enjoy on Steam right now, updated on October 15th 2026. Looking for even more free titles? Explore the complete list of the best free to play co-op games on Steam.
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1. Unturned
Unturned is an open-world zombie survival sandbox game. As one of the few not yet turned, you must fight to remain among the living. Unturned is a survival, zombies and multiplayer game. Released on July 07th 2017 has received 564,927 reviews of which 514,084 were positive and 50,843 were negative resulting in an impressive rating of 9.0 out of 10. The game has hit the top spot as the #1 most played co-op game, thanks to its 13,236 peak concurrent players over the last day.
9.0
514,084
50,843
13,236
players
2. SCP: Secret Laboratory
Deep within a secure underground facility, a sudden containment breach allows many of the secured anomalies to escape from their chambers. Assist the Foundation in re-securing the facility, help the Insurgency in their goal to capture it, or wreak havoc as an SCP in a frantic bid to escape. SCP: Secret Laboratory is a multiplayer, horror and first-person game. Released on December 29th 2017 has received 214,309 reviews of which 195,923 were positive and 18,386 were negative resulting in an impressive rating of 9.0 out of 10. While seeing 1,745 players online at once in the last 24 hours, this game is currently ranked #2 among co-op games based on player count.
9.0
195,923
18,386
1,745
players
3. One-armed robber
One-armed robber is a chaotic first-person heist game that centers around a uniquely challenging premise. Players take the role of a determined robber equipped with only one arm, tasked with pulling off daring heists on banks, shops, and various establishments. One-armed robber is a multiplayer, co-op and heist game. Released on December 15th 2023 has received 53,558 reviews of which 48,738 were positive and 4,820 were negative resulting in a rating of 9.0 out of 10. While seeing 429 players online at once in the last 24 hours, this game is currently ranked #3 among co-op games based on player count.
9.0
48,738
4,820
429
players
4. Cry of Fear
Cry of Fear is a psychological single-player and co-op horror game set in a deserted town filled with horrific creatures and nightmarish delusions. You play as a young man desperately searching for answers in the cold Scandinavian night, finding his way through the city as he slowly descends into madness. Cry of Fear is a horror, multiplayer and psychological horror game. Released on April 25th 2013 has received 74,408 reviews of which 65,852 were positive and 8,556 were negative resulting in a rating of 8.7 out of 10. With 357 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played co-op games.
8.7
65,852
8,556
357
players
5. No More Room in Hell
The chances of you surviving this all out war of society and the undead are slim to none. Already, there are millions of the walking dead shambling about, searching for food to eat. There's no known cure. One bite can possibly end it all for you. However, you aren't alone in this nightmare. No More Room in Hell is a zombies, multiplayer and survival game. Released on October 31st 2013 has received 74,253 reviews of which 66,753 were positive and 7,500 were negative resulting in a rating of 8.9 out of 10. With 276 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played co-op games.
8.9
66,753
7,500
276
players
6. Caliber
Caliber is a team-based online shooter focused on special forces units from all over the world. More than 70 operators with unique abilities and weapons as well as various game modes and maps are waiting for you. Caliber is a multiplayer, combat and co-op game. Released on April 12th 2023 has received 22,763 reviews of which 16,845 were positive and 5,918 were negative resulting in a rating of 7.3 out of 10. With 255 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played co-op games.
7.3
16,845
5,918
255
players
7. Sven Co-op
Sven Co-op is a co-operative game originally based around Valve Software's Half-Life. In this game players must work together against computer controlled enemies and solve puzzles as a team. Sven Co-op is a co-op, fps and online co-op game. Released on January 22nd 2016 has received 32,518 reviews of which 30,242 were positive and 2,276 were negative resulting in an impressive rating of 9.1 out of 10. With 209 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played co-op games.
9.1
30,242
2,276
209
players
8. 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 is a co-op, escape room and puzzle game. Released on February 03rd 2017 has received 29,997 reviews of which 27,014 were positive and 2,983 were negative resulting in a rating of 8.8 out of 10. With 201 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played co-op games.
8.8
27,014
2,983
201
players
9. Puzzle Together Multiplayer Jigsaw Puzzles
Multiplayer jigsaw puzzles with voice chat! Play on your own or with friends, and feel like you're all sitting around the same table. Millions of puzzle images, upload your own, or create any puzzle you can imagine just by describing it! Puzzle Together Multiplayer Jigsaw Puzzles is a puzzle, casual and multiplayer game. Released on December 09th 2020 has received 4,438 reviews of which 3,801 were positive and 637 were negative resulting in a rating of 8.3 out of 10. With 147 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played co-op games.
8.3
3,801
637
147
players
10. SAS: Zombie Assault 4
Purge the undead! Intense action-shooter with deep rpg elements, including upgradeable guns and armor, unique class skills, and class special abilities. Entire game can be played single player or as a 4-player online co-op game, including PvP events like Last Man Standing. SAS: Zombie Assault 4 is a zombies, multiplayer and top-down shooter game. Released on October 16th 2017 has received 9,695 reviews of which 8,241 were positive and 1,454 were negative resulting in a rating of 8.3 out of 10. With 118 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played co-op games.
8.3
8,241
1,454
118
players
More Co-op & Related Games
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