Best Co-op Games on Steam
Unlike generic lists, our strategy game recommendations use a rigorous analysis of Steam user reviews to identify and feature only the best, community-validated co-op games. For those who prefer not to search, lists of the most played, top deals and best free co-op games are available at the bottom of the page.
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 June 16th 2025.
1. 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 horror, multiplayer and survival horror game developed and published by Behaviour Interactive Inc.. 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. The game has hit the top spot as the #1 most played co-op game, thanks to its 48,439 peak concurrent players over the last day.2. 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 horror, online co-op and multiplayer game developed and published by semiwork. 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 39,619 players online at once in the last 24 hours, this game is currently ranked #2 among co-op games based on player count.3. 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 zombies, co-op and fps game developed and published by Valve. 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. While seeing 30,782 players online at once in the last 24 hours, this game is currently ranked #3 among co-op games based on player count.4. 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 simulation, co-op and crime game developed and published by TVGS. 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 24,436 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played co-op games.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 co-op, action and fps game developed by OVERKILL - a Starbreeze Studio. and published by Starbreeze Publishing AB. 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 23,535 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played co-op games.6. 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 survival, open world survival craft and multiplayer game developed and published by Klei Entertainment. 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 14,957 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played co-op games.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 horror, online co-op and multiplayer game developed and published by Kinetic Games. 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 13,083 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played co-op games.8. Borderlands 2
The Ultimate Vault Hunter’s Upgrade lets you get the most out of the Borderlands 2 experience. Borderlands 2 is a loot, shooter and action game developed by Gearbox Software, Aspyr (Mac) and Aspyr (Linux) and published by Aspyr (Mac), Aspyr (Linux) and 2K. Released on September 20th 2012 has received 295,218 reviews of which 272,900 were positive and 22,318 were negative resulting in an impressive rating of 9.2 out of 10. With 10,687 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played co-op games.9. Risk of Rain 2
Escape a chaotic alien planet by fighting through hordes of frenzied monsters – with your friends, or on your own. Combine loot in surprising ways and master each character until you become the havoc you feared upon your first crash landing. Risk of Rain 2 is a third-person shooter, action roguelike and multiplayer game developed by Hopoo Games and published by Gearbox Publishing. Released on August 11th 2020 has received 313,577 reviews of which 293,127 were positive and 20,450 were negative resulting in an impressive rating of 9.3 out of 10. With 8,881 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played co-op games.10. Grounded
The world is a vast, beautiful and dangerous place – especially when you have been shrunk to the size of an ant. Can you thrive alongside the hordes of giant insects, fighting to survive the perils of the backyard? Grounded is a survival, multiplayer and co-op game developed by Obsidian Entertainment and published by Xbox Game Studios. Released on September 27th 2022 has received 84,517 reviews of which 75,482 were positive and 9,035 were negative resulting in a rating of 8.8 out of 10. With 8,101 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played co-op games.Best deals on co-op games on Steam
Discover fantastic savings with the best discounts on a variety of co-op games available on Steam right now, updated on June 16th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted co-op games.
1. Strange Brigade
Embark on an exotic journey into danger in this rip-roaring 1930s third person adventure for 1-4 players! Encounter pulse-pounding action, treacherous traps and tales of derring-do! Strange Brigade is a action, adventure and co-op game developed and published by Rebellion. Released on August 27th 2018 has received 10,728 reviews of which 9,034 were positive and 1,694 were negative resulting in a rating of 8.2 out of 10. Featuring a massive 99% discount, this game currently holds the #1 spot in the best deals for co-op category.2. Warhammer: End Times - Vermintide
Vermintide is an epic co-operative action combat adventure set in the End Times of the iconic Warhammer Fantasy world. Warhammer: End Times - Vermintide is a action, online co-op and co-op game developed and published by Fatshark. Released on October 23rd 2015 has received 21,090 reviews of which 16,874 were positive and 4,216 were negative resulting in a rating of 7.9 out of 10. Thanks to its incredible 99% discount, this game is now the #2 best deal in co-op games.3. The Ascent
The Ascent is a solo and co-op Action-shooter RPG set in a cyberpunk world. The mega corporation that owns you and everyone, The Ascent Group, has just collapsed. Can you survive without it? The Ascent is a top-down shooter, cyberpunk and rpg game developed by Neon Giant and published by Curve Games. Released on July 29th 2021 has received 22,884 reviews of which 16,932 were positive and 5,952 were negative resulting in a rating of 7.3 out of 10. Thanks to its incredible 99% discount, this game is now the #3 best deal in co-op games.4. This Means Warp
It’s co-op space survival fun, Jim, but not as we know it. This Means Warp is an intense spaceship management roguelite experience for 1-4 players. Explore a procedurally generated universe, upgrade your ship, battle dangerous enemies and adapt your strategies to survive in a hostile galaxy. This Means Warp is a survival, online co-op and space game developed by Outlier and published by Jagex Ltd. Released on May 04th 2023 has received 627 reviews of which 447 were positive and 180 were negative resulting in a rating of 6.8 out of 10. Currently offered at a significant 99% discount, this title has earned the #4 position in the best deals for co-op games.5. Battletoads
• Over-the-top combat with combos and hard-hitting morph attacks • Wild, varied gameplay sequences for all types of gamers • Hand-drawn animation feels like playing a cartoon • Drop-in couch co-op for three players Battletoads is a action, adventure and co-op game developed by Dlala Studios and published by Microsoft Studios and Rare Ltd. Released on August 20th 2020 has received 2,125 reviews of which 1,450 were positive and 675 were negative resulting in a rating of 6.6 out of 10. Currently offered at a significant 99% discount, this title has earned the #5 position in the best deals for co-op games.6. X-Morph: Defense
Unique fusion of a top-down shooter and tower defense strategy. You are the invader! Use destructive weapons or lead your enemies into a maze of towers. Strategize in the build mode by carefully selecting various types of alien towers or throw yourself right into the heat of the battle. X-Morph: Defense is a tower defense, strategy and action game developed by and published by Exor Studios. Released on August 30th 2017 has received 3,823 reviews of which 3,506 were positive and 317 were negative resulting in a rating of 8.8 out of 10. Currently offered at a significant 98% discount, this title has earned the #6 position in the best deals for co-op games.7. BattleGroupVR
BattleGroupVR is a first person real-time space strategy where you lead a fleet of powerful warships into battle from the bridge of your own flagship. Assemble your fleet, upgrade your load-outs, train your captains, engage the enemy and secure the sector. Try not to go down with the ship. BattleGroupVR is a space sim, space and vr game developed and published by SpaceOwl Games. Released on July 31st 2023 has received 902 reviews of which 834 were positive and 68 were negative resulting in a rating of 8.7 out of 10. Currently offered at a significant 98% discount, this title has earned the #7 position in the best deals for co-op games.8. Trine 4: The Nightmare Prince
The best-selling Trine series returns to the magic of 2.5D! Join three iconic heroes as they set off on a quest through fantastical fairytale landscapes to save the world from the Nightmare Prince’s shadows. Trine 4: The Nightmare Prince is a puzzle-platformer, local co-op and online co-op game developed and published by Frozenbyte. Released on October 08th 2019 has received 13,379 reviews of which 11,924 were positive and 1,455 were negative resulting in a rating of 8.7 out of 10. Currently offered at a significant 98% discount, this title has earned the #8 position in the best deals for co-op games.9. King Of The Castle
Take your rightful place on the throne in this political party game for 4+ players. Rule the kingdom with an iron fist or silver tongue as you steer through bloodshed, intrigue & madcap disaster! Can you keep your crown when others plot your downfall? More importantly, can you keep your head? King Of The Castle is a strategy, choices matter and fantasy game developed by Tributary Games and published by Team17. Released on March 02nd 2023 has received 1,456 reviews of which 1,293 were positive and 163 were negative resulting in a rating of 8.5 out of 10. Currently offered at a significant 98% discount, this title has earned the #9 position in the best deals for co-op games.10. AI War 2
The most devious and acclaimed artificial intelligence in strategy gaming is better than ever. A grand strategy/RTS hybrid that reverses many conventions of both genres. Take territory without attracting attention, build your empire with care, and adapt to an ever-evolving galactic battleground. AI War 2 is a 4x, grand strategy and multiplayer game developed and published by Arcen Games and LLC. Released on October 22nd 2019 has received 1,490 reviews of which 1,318 were positive and 172 were negative resulting in a rating of 8.4 out of 10. Currently offered at a significant 98% discount, this title has earned the #10 position in the best deals for co-op games.Free 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 June 16th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play co-op games.