Free to Play Co-op Games on Steam
Check out this fantastic list of free-to-play co-op games you can enjoy on Steam right now, updated on October 14th 2025. Looking for even more free titles? Explore the complete list of the best free to play co-op games.
Lists & Categories
1. 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 is a game developed and published by . Released on November 15th 2017 has received 146,552 reviews of which 112,887 were positive and 33,665 were negative resulting in a rating of 7.6 out of 10. The game has hit the top spot as the #1 most played co-op game, thanks to its 23,141 peak concurrent players over the last day.
7.6
112,887
33,665
23,141
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 game developed and published by . 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 2,095 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
2,095
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 game developed and published by . Released on December 15th 2023 has received 38,728 reviews of which 35,393 were positive and 3,335 were negative resulting in a rating of 9.0 out of 10. While seeing 630 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
35,393
3,335
630
players
4. 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 game developed and published by . Released on April 12th 2023 has received 21,211 reviews of which 16,033 were positive and 5,178 were negative resulting in a rating of 7.4 out of 10. With 284 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played co-op games.
7.4
16,033
5,178
284
players
5. 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 game developed and published by . Released on January 22nd 2016 has received 31,316 reviews of which 29,316 were positive and 2,000 were negative resulting in an impressive rating of 9.2 out of 10. With 246 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played co-op games.
9.2
29,316
2,000
246
players
6. One-armed cook
One-armed cook is a chaotic co-op cooking game for up to 4 people. Work as a team or cook on your own, set your own pace, and don't let the stress of a full restaurant catch up to you. The goofy physics-based aspect of the game gives this cooking game a new twist. One-armed cook is a game developed and published by . Released on August 30th 2022 has received 29,383 reviews of which 26,976 were positive and 2,407 were negative resulting in a rating of 9.0 out of 10. With 228 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played co-op games.
9.0
26,976
2,407
228
players
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 is a game developed and published by . 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 197 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played co-op games.
8.8
27,014
2,983
197
players
8. Alien Swarm: Reactive Drop
Co-operative top-down shooter game available for free. An epic bug hunt featuring a unique blend of co-op play and squad-level tactics. Alien Swarm: Reactive Drop is a game developed and published by . Released on April 20th 2017 has received 22,649 reviews of which 21,500 were positive and 1,149 were negative resulting in an impressive rating of 9.3 out of 10. The game currently holds the #8 spot among the most played co-op games.
9.3
21,500
1,149
78
players
9. MultiVersus
MultiVersus is a free-to-play platform fighter that brings the depth of iconic WB stars to life across the nearly endless possibilities of play. MultiVersus is a game developed and published by . Released on July 19th 2022 has received 118,212 reviews of which 90,318 were positive and 27,894 were negative resulting in a rating of 7.6 out of 10. The game currently holds the #9 spot among the most played co-op games.
7.6
90,318
27,894
43
players
10. Otherworld Legends
A "blood-pumping, face-bashing" roguelike brawler. Master heroes of your choice, craft uniquely broken builds, and hack & pummel through a myriad of dungeons in a thrilling rampage. Otherworld Legends is a game developed and published by . Released on October 30th 2024 has received 1,287 reviews of which 802 were positive and 485 were negative resulting in a rating of 6.1 out of 10. The game currently holds the #10 spot among the most played co-op games.
6.1
802
485
42
players
More Co-op & Related Games
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