Most Played Co-op Games on Steam
Take a look at the top co-op games that are currently attracting the largest player bases on the Steam platform, as of July 14th 2025. Want to explore even more co-op titles available on Steam? Explore the complete list of the best co-op games.
Lists & Categories
1. PEAK
PEAK is a co-op climbing game where the slightest mistake can spell your doom. Either solo or as a group of lost nature scouts, your only hope of rescue from a mysterious island is to scale the mountain at its center. Do you have what it takes to reach the PEAK? PEAK is a game developed and published by . Released on June 16th 2025 has received 53,104 reviews of which 49,559 were positive and 3,545 were negative resulting in an impressive rating of 9.2 out of 10. The game has hit the top spot as the #1 most played co-op game, thanks to its 83,223 peak concurrent players over the last day.
9.2
49,559
3,545
83,223
players
2. Dead by Daylight
Trapped forever in a realm of eldritch evil where even death is not an escape, four determined Survivors face a bloodthirsty Killer in a vicious game of nerve and wits. Pick a side and step into a world of tension and terror with horror gaming's best asymmetrical multiplayer. Dead by Daylight is a game developed and published by . Released on June 14th 2016 has received 797,216 reviews of which 630,223 were positive and 166,993 were negative resulting in a rating of 7.9 out of 10. While seeing 73,439 players online at once in the last 24 hours, this game is currently ranked #2 among co-op games based on player count.
7.9
630,223
166,993
73,439
players
3. R.E.P.O.
An online co-op horror game with up to 6 players. Locate valuable, fully physics-based objects and handle them with care as you retrieve and extract to satisfy your creator's desires. R.E.P.O. is a game developed and published by . Released on February 26th 2025 has received 185,642 reviews of which 179,154 were positive and 6,488 were negative resulting in an impressive rating of 9.5 out of 10. While seeing 35,648 players online at once in the last 24 hours, this game is currently ranked #3 among co-op games based on player count.
9.5
179,154
6,488
35,648
players
4. Left 4 Dead 2
Set in the zombie apocalypse, Left 4 Dead 2 (L4D2) is the highly anticipated sequel to the award-winning Left 4 Dead, the #1 co-op game of 2008. This co-operative action horror FPS takes you and your friends through the cities, swamps and cemeteries of the Deep South, from Savannah to New Orleans across five expansive campaigns. Left 4 Dead 2 is a game developed and published by . Released on November 16th 2009 has received 963,983 reviews of which 940,221 were positive and 23,762 were negative resulting in an impressive rating of 9.7 out of 10. With 30,927 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played co-op games.
9.7
940,221
23,762
30,927
players
5. PAYDAY 2
PAYDAY 2 is an action-packed, four-player co-op shooter that once again lets gamers don the masks of the original PAYDAY crew - Dallas, Hoxton, Wolf and Chains - as they descend on Washington DC for an epic crime spree. PAYDAY 2 is a game developed and published by . Released on August 13th 2013 has received 663,082 reviews of which 594,327 were positive and 68,755 were negative resulting in a rating of 8.9 out of 10. With 23,625 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played co-op games.
8.9
594,327
68,755
23,625
players
6. Schedule I
From small-time dope pusher to kingpin - manufacture and distribute a range of drugs throughout the grungy city of Hyland Point. Expand your empire with properties, businesses, employees and more. Schedule I is a game developed and published by . Released on March 24th 2025 has received 204,041 reviews of which 200,803 were positive and 3,238 were negative resulting in an impressive rating of 9.7 out of 10. With 22,603 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played co-op games.
9.7
200,803
3,238
22,603
players
7. Phasmophobia
Phasmophobia is a 4 player online co-op psychological horror. Paranormal activity is on the rise and it’s up to you and your team to use all the ghost-hunting equipment at your disposal in order to gather as much evidence as you can. Phasmophobia is a game developed and published by . Released on September 18th 2020 has received 768,779 reviews of which 736,611 were positive and 32,168 were negative resulting in an impressive rating of 9.5 out of 10. With 19,204 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played co-op games.
9.5
736,611
32,168
19,204
players
8. Sons Of The Forest
Sent to find a missing billionaire on a remote island, you find yourself in a cannibal-infested hellscape. Craft, build, and struggle to survive, alone or with friends, in this terrifying new open-world survival horror simulator. Sons Of The Forest is a game developed and published by . Released on February 22nd 2024 has received 253,546 reviews of which 222,495 were positive and 31,051 were negative resulting in a rating of 8.7 out of 10. With 18,574 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played co-op games.
8.7
222,495
31,051
18,574
players
9. Don't Starve Together
Fight, Farm, Build and Explore Together in the standalone multiplayer expansion to the uncompromising wilderness survival game, Don't Starve. Don't Starve Together is a game developed and published by . Released on April 21st 2016 has received 499,061 reviews of which 475,393 were positive and 23,668 were negative resulting in an impressive rating of 9.4 out of 10. With 13,194 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played co-op games.
9.4
475,393
23,668
13,194
players
10. Warhammer 40,000: Space Marine 2
Embody the superhuman skill and brutality of a Space Marine. Unleash deadly abilities and devastating weaponry to obliterate the relentless Tyranid swarms. Defend the Imperium in spectacular third-person action in solo or multiplayer modes. Warhammer 40,000: Space Marine 2 is a game developed and published by . Released on September 09th 2024 has received 162,585 reviews of which 134,739 were positive and 27,846 were negative resulting in a rating of 8.2 out of 10. With 10,739 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played co-op games.
8.2
134,739
27,846
10,739
players