Best Online 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 online co-op games. For those who prefer not to search, lists of the most played, top deals and best free online co-op games are available at the bottom of the page.
Filters & Lists
DC Universe™ Online
DC Universe Online is a Free-to-Play, massive multiplayer online action game set in the popular DC Universe. Become one of a new breed of Heroes or Villains and wield incredible powers as you go to war with legendary characters such as Batman, Superman, Lex Luthor and The Joker.
Renegade Ops
Blast your way through enemy lines to defeat Inferno, a madman intent on global domination. Destruction just got awesome.
The Haunted: Hells Reach
Winner of 2010′s Make Something Unreal contest, The Haunted: Hells Reach is a fast-paced horror game where your goal is to liberate cursed places and survive the assault of Hell.
PAYDAY™ The Heist
Take on the role of a hardened career criminal executing intense, dynamic heists in constant pursuit of the next “big score”
Dungeon Defenders
Create a hero from one of four classes to save Etheria in this 4-player coop Tower Defense Action-RPG. Includes Steam exclusive Portal gun & TF2 familiars!
Dead Rising 2: Off the Record
You are Frank West – photojournalist and original hero of the Dead Rising Willamette incident – taking center stage experiencing the re-imagined Fortune City outbreak.
Supreme Commander: Forged Alliance
The last days of man are at hand.. Two years after the Infinite War the once great warring nations now lie in ruins, and humanity’s hope for a brighter future is nothing but a bitter memory. A new, seemingly unstoppable enemy, supported by the zealots of The Order, now seeks to eradicate mankind: UEF, Aeon Loyalist, and Cybran alike.
Worms Ultimate Mayhem
Load your weapons and experience a whole new dimension in destructive turn-based cartoon action!
Warhammer 40,000: Space Marine - Anniversary Edition
In Warhammer 40,000 Space Marine you are Captain Titus, a Space Marine of the Ultramarines chapter and a seasoned veteran of countless battles.
E.Y.E: Divine Cybermancy
In a dark Cyberpunk world, you (and up to 3 friends) wage war against the all-powerful Federation in this Source-powered FPS/RPG.
F.E.A.R. 3
F.E.A.R. 3 delivers all the hallmarks that define the F.E.A.R. brand: terrifying paranormal experience, frenetic combat and a dramatic storyline.
Champions Online
Grab your cape and defend Millennium City in this comic book-style action MMORPG! Design your hero and costume from thousands of costume pieces, face super-villains like Dr. Destroyer, and create your own unique nemesis.
Spiral Knights
Join the ranks of the Spiral Knights. Stranded on an alien world, you must explore the ever-changing Clockworks beneath its surface.
Portal 2 - The Final Hours
Portal 2 draws from the award-winning formula of innovative gameplay, story, and music that earned the original Portal over 70 industry accolades and created a cult following. For more information on Portal 2 click here.
Sanctum
You think Tower Defense games are all about building? You thought wrong. Sanctum is not your average Tower Defense title. When the havoc starts, you get to join the fray! As one of the world’s first First Person Shooter - Tower Defense games, Sanctum has taken the best of both worlds to deliver an epic, one-of-a-kind experience.
LEGO® Star Wars™ III - The Clone Wars™
LEGO Star Wars III: The Clone Wars will allow fans to explore endlessly and laugh their way through the Star Wars galaxy in the most humorous, accessible and action-packed LEGO game to date.
RIFT
Dive into a world of epic adventure! Create your perfect hero thanks to a uniquely customizable class system. Collect, craft, and customize your gear. Go it alone or group up to challenge dungeons, raids, dynamic open-world content, and your fellow players.
Magicka
Magicka is a satirical action-adventure game set in a rich fantasy world based on Norse mythology. The player assumes the role of a wizard from a sacred order tasked with stopping an evil sorcerer who has thrown the world into turmoil, his foul creations besieging the forces of good.
Alien Breed 3: Descent
Experience the final explosive chapter in the Alien Breed series and uncover the horrifying truth surrounding the existence of the Breed. Launch discount good thru Nov. 24 10am PST.
Call of Duty®: Black Ops
The biggest first-person action series of all time and the follow-up to critically acclaimed Call of Duty®: Modern Warfare 2 returns with Call of Duty®: Black Ops.
Lara Croft and the Guardian of Light
Take control of Lara and her new partner Totec, a Mayan tribesman, and uncover the ancient artifact known as the "Mirror of Smoke" in this all new action adventure game.Most played online co-op games on Steam
Take a look at the top online co-op games that are currently attracting the largest player bases on the Steam platform, as of April 30th 2025.
1. 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 comedy game developed and published by semiwork. Released on February 26th 2025 has received 141,665 reviews of which 136,708 were positive and 4,957 were negative resulting in an impressive rating of 9.5 out of 10. The game has hit the top spot as the #1 most played online co-op game, thanks to its 56,367 peak concurrent players over the last day.
9.5
136,708
4,957
56,367
players
2. DayZ
How long can you survive a post-apocalyptic world? A land overrun with an infected "zombie" population, where you compete with other survivors for limited resources. Will you team up with strangers and stay strong together? Or play as a lone wolf to avoid betrayal? This is DayZ – this is your story. DayZ is a survival, open world and online co-op game developed and published by Bohemia Interactive. Released on December 13th 2018 has received 426,541 reviews of which 326,984 were positive and 99,557 were negative resulting in a rating of 7.6 out of 10. While seeing 31,544 players online at once in the last 24 hours, this game is currently ranked #2 among online co-op games based on player count.
7.6
326,984
99,557
31,544
players
3. 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 790,041 reviews of which 624,264 were positive and 165,777 were negative resulting in a rating of 7.9 out of 10. While seeing 28,299 players online at once in the last 24 hours, this game is currently ranked #3 among online co-op games based on player count.
7.9
624,264
165,777
28,299
players
4. HELLDIVERS™ 2
The Galaxy’s Last Line of Offence. Enlist in the Helldivers and join the fight for freedom across a hostile galaxy in a fast, frantic, and ferocious third-person shooter. HELLDIVERS™ 2 is a online co-op, pve and third-person shooter game developed by Arrowhead Game Studios and published by PlayStation Publishing LLC. Released on February 08th 2024 has received 989,576 reviews of which 755,031 were positive and 234,545 were negative resulting in a rating of 7.6 out of 10. With 18,780 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played online co-op games.
7.6
755,031
234,545
18,780
players
5. Valheim
A brutal exploration and survival game for 1-10 players, set in a procedurally-generated purgatory inspired by viking culture. Battle, build, and conquer your way to a saga worthy of Odin’s patronage! Valheim is a open world survival craft, survival and online co-op game developed by Iron Gate AB and published by Coffee Stain Publishing. Released on February 02nd 2021 has received 496,650 reviews of which 468,624 were positive and 28,026 were negative resulting in an impressive rating of 9.4 out of 10. With 17,441 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played online co-op games.
9.4
468,624
28,026
17,441
players
6. 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 764,580 reviews of which 732,704 were positive and 31,876 were negative resulting in an impressive rating of 9.5 out of 10. With 10,655 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played online co-op games.
9.5
732,704
31,876
10,655
players
7. Bloons TD 6
The Bloons are back and better than ever! Get ready for a massive 3D tower defense game designed to give you hours and hours of the best strategy gaming available. Bloons TD 6 is a tower defense, strategy and multiplayer game developed and published by Ninja Kiwi. Released on December 17th 2018 has received 351,886 reviews of which 342,292 were positive and 9,594 were negative resulting in an impressive rating of 9.6 out of 10. With 9,207 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played online co-op games.
9.6
342,292
9,594
9,207
players
8. Enshrouded
You are Flameborn, last ember of hope of a dying race. Awaken, survive the terror of a corrupting fog, and reclaim the lost beauty of your kingdom. Venture into a vast world, vanquish punishing bosses, build grand halls and forge your path in this co-op survival action RPG for up to 16 players. Enshrouded is a open world, survival and base-building game developed and published by Keen Games GmbH. Released on January 24th 2024 has received 74,913 reviews of which 64,919 were positive and 9,994 were negative resulting in a rating of 8.5 out of 10. With 6,133 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played online co-op games.
8.5
64,919
9,994
6,133
players
9. Supermarket Together
The multiplayer supermarket has arrived to your neighbourhood for free! Stock your shop space, unlock perks and franchises, hire employees or chase those pesky shoplifters. The more players, the more action! Supermarket Together is a simulation, online co-op and multiplayer game developed and published by DeadDevsTellNoLies. Released on August 09th 2024 has received 64,362 reviews of which 61,131 were positive and 3,231 were negative resulting in an impressive rating of 9.3 out of 10. With 4,073 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played online co-op games.
9.3
61,131
3,231
4,073
players
10. Tom Clancy’s The Division® 2
Join an elite group of civilian agents in this action-packed RPG shooter. Engage in intense tactical combat, team-up with your friends, and survive in a dynamic open world to save Washington, D.C. Tom Clancy’s The Division® 2 is a looter shooter, open world and multiplayer game developed and published by Ubisoft. Released on January 12th 2023 has received 21,491 reviews of which 16,355 were positive and 5,136 were negative resulting in a rating of 7.5 out of 10. With 3,636 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played online co-op games.
7.5
16,355
5,136
3,636
players
Best deals on online co-op games on Steam
Discover fantastic savings with the best discounts on a variety of online co-op games available on Steam right now, updated on April 30th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted online co-op games.
1. 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 619 reviews of which 445 were positive and 174 were negative resulting in a rating of 6.9 out of 10. Featuring a massive 95% discount, this game currently holds the #1 spot in the best deals for online co-op category.
6.9
445
174
-95%
20.00€
1.00€
2. 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 13,256 reviews of which 11,828 were positive and 1,428 were negative resulting in a rating of 8.7 out of 10. Thanks to its incredible 93% discount, this game is now the #2 best deal in online co-op games.
8.7
11,828
1,428
-93%
28.14€
1.97€
3. Borderlands 3
The original shooter-looter returns, packing bazillions of guns and a mayhem-fueled adventure! Blast through new worlds and enemies as one of four new Vault Hunters. Borderlands 3 is a rpg, looter shooter and multiplayer game developed by Gearbox Software and published by 2K. Released on March 13th 2020 has received 146,466 reviews of which 124,552 were positive and 21,914 were negative resulting in a rating of 8.4 out of 10. Thanks to its incredible 93% discount, this game is now the #3 best deal in online co-op games.
8.4
124,552
21,914
-93%
59.71€
4.18€
4. Shift Happens
Shift Happens is a cooperative platformer for two. You and a friend shift your mass, throw each other and puzzle your way through four stages of stylized imaginary worlds. Including the occasional backstabbing and taunting. Play with a friend on a couch, online or even special singleplayer levels. Shift Happens is a co-op, online co-op and local co-op game developed by Klonk Games and published by Daedalic Entertainment. Released on February 22nd 2017 has received 4,002 reviews of which 3,164 were positive and 838 were negative resulting in a rating of 7.7 out of 10. Currently offered at a significant 93% discount, this title has earned the #4 position in the best deals for online co-op games.
7.7
3,164
838
-93%
15.29€
1.07€
5. Gotham Knights
Batman is dead. It is now up to the Batman Family - Batgirl, Nightwing, Red Hood, and Robin - to protect Gotham City. Gotham Knights is a action, open world and superhero game developed by Warner Bros. Games Montréal and QLOC and published by Warner Bros. Games. Released on October 21st 2022 has received 22,529 reviews of which 15,192 were positive and 7,337 were negative resulting in a rating of 6.7 out of 10. Currently offered at a significant 93% discount, this title has earned the #5 position in the best deals for online co-op games.
6.7
15,192
7,337
-93%
56.00€
3.92€
6. From Space
From Space is a solo and co-op action-shooter for squads up to four players. Take on the challenge of liberating the earth from an alien infestation with your friends, using over-the-top weaponry in a post-apocalyptic world with awesomely stylized graphics. The apocalypse has never been so much fun! From Space is a action, co-op and online co-op game developed by Triangle Studios and published by Curve Games. Released on November 03rd 2022 has received 1,876 reviews of which 1,271 were positive and 605 were negative resulting in a rating of 6.6 out of 10. Currently offered at a significant 93% discount, this title has earned the #6 position in the best deals for online co-op games.
6.6
1,271
605
-93%
14.29€
1.00€
7. Orcs Must Die! 2
You’ve tossed, burned and sliced them by the thousands – now orcs must die more than ever before! Grab a friend and slay orcs in untold numbers in this sequel to the 2011 AIAS Strategy Game of the Year from Robot Entertainment. Orcs Must Die! 2 is a tower defense, co-op and action game developed and published by Robot Entertainment. Released on July 30th 2012 has received 19,251 reviews of which 17,894 were positive and 1,357 were negative resulting in an impressive rating of 9.1 out of 10. Currently offered at a significant 92% discount, this title has earned the #7 position in the best deals for online co-op games.
9.1
17,894
1,357
-92%
12.50€
1.00€
8. For The King
For The King is a strategic RPG that blends tabletop and roguelike elements in a challenging adventure that spans the realms. Set off on a single player experience or play cooperatively both online and locally. For The King is a rpg, online co-op and turn-based game developed by IronOak Games and published by Curve Games. Released on April 19th 2018 has received 41,205 reviews of which 36,349 were positive and 4,856 were negative resulting in a rating of 8.7 out of 10. Currently offered at a significant 92% discount, this title has earned the #8 position in the best deals for online co-op games.
8.7
36,349
4,856
-92%
20.00€
1.60€
9. Killing Floor 2
In KILLING FLOOR 2, players descend into continental Europe after it has been overrun by horrific, murderous clones called Zeds that were created by rogue elements of the Horzine Corporation. 6-player Co-Op & 12-player VS Zed-slaughtering mayhem. Killing Floor 2 is a zombies, multiplayer and online co-op game developed and published by Tripwire Interactive. Released on November 18th 2016 has received 126,532 reviews of which 111,048 were positive and 15,484 were negative resulting in a rating of 8.7 out of 10. Currently offered at a significant 92% discount, this title has earned the #9 position in the best deals for online co-op games.
8.7
111,048
15,484
-92%
29.13€
2.33€
10. Back 4 Blood
Back 4 Blood is a thrilling cooperative first-person shooter from the creators of the critically acclaimed Left 4 Dead franchise. Experience the intense 4 player co-op narrative campaign, competitive multiplayer as human or Ridden, and frenetic gameplay that keeps you in the action. Back 4 Blood is a zombies, online co-op and multiplayer game developed by Turtle Rock Studios and published by Warner Bros. Games. Released on October 12th 2021 has received 67,866 reviews of which 46,414 were positive and 21,452 were negative resulting in a rating of 6.8 out of 10. Currently offered at a significant 92% discount, this title has earned the #10 position in the best deals for online co-op games.
6.8
46,414
21,452
-92%
62.25€
4.98€
Free online co-op games on Steam
Check out this fantastic list of free-to-play online co-op games you can enjoy on Steam right now, updated on April 30th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play online co-op games.
1. Supermarket Together
The multiplayer supermarket has arrived to your neighbourhood for free! Stock your shop space, unlock perks and franchises, hire employees or chase those pesky shoplifters. The more players, the more action! Supermarket Together is a simulation, online co-op and multiplayer game developed and published by DeadDevsTellNoLies. Released on August 09th 2024 has received 64,362 reviews of which 61,131 were positive and 3,231 were negative resulting in an impressive rating of 9.3 out of 10. With 4,073 active players enjoying it for free, this strategy game has reached the #1 spot among the top free online co-op games on Steam.
9.3
61,131
3,231
4,073
players
2. Stumble Guys
Ready for the chaos? Stumble Guys is a 32-player, fast-paced multiplayer party royale where players dash, jump, and fall across hilarious obstacle courses in a fun race to be the last one standing. Stumble Guys is a free to play, battle royale and multiplayer game developed and published by Scopely. Released on October 07th 2021 has received 127,054 reviews of which 108,054 were positive and 19,000 were negative resulting in a rating of 8.4 out of 10. Thanks to its free to play tag and a daily player base of 2,907, this online co-op game has secured the #2 spot in the ranking of free online co-op games on Steam.
8.4
108,054
19,000
2,907
players
3. Goose Goose Duck
Goose Goose Duck is a game of social deduction for up to 16 players. Players are separated into different groups that are each assigned a different objective. Complete your team’s objective to win! Goose Goose Duck is a multiplayer, free to play and online co-op game developed and published by Gaggle Studios and Inc.. Released on October 03rd 2021 has received 71,763 reviews of which 62,221 were positive and 9,542 were negative resulting in a rating of 8.5 out of 10. Thanks to its free to play tag and a daily player base of 1,676, this online co-op game has secured the #3 spot in the ranking of free online co-op games on Steam.
8.5
62,221
9,542
1,676
players
4. Rec Room
Rec Room is the best place to build and play games together. Party up with friends from all around the world to chat, hang out, explore MILLIONS of player-created rooms, or build something new and amazing to share with us all. Rec Room is a free to play, vr and multiplayer game developed and published by Rec Room. Released on September 02nd 2021 has received 70,607 reviews of which 63,368 were positive and 7,239 were negative resulting in a rating of 8.8 out of 10. Attracting a solid base of 1,160 players due to its free access, this strategy game has achieved the #4 position in the best free online co-op games on Steam.
8.8
63,368
7,239
1,160
players
5. DDNet
Want to play the hardest cooperative 2D platformer ever? Want to finish no map ever? Want to be in pain for hours and cry, getting nothing in return? Come play DDNet with a large community of other sufferers! DDNet is a online co-op, free to play and multiplayer game developed and published by DDNet Team. Released on August 17th 2020 has received 36,475 reviews of which 32,665 were positive and 3,810 were negative resulting in a rating of 8.8 out of 10. Attracting a solid base of 860 players due to its free access, this strategy game has achieved the #5 position in the best free online co-op games on Steam.
8.8
32,665
3,810
860
players
6. Stay Out
Stay Out - is a MMORPG with shooter elements, based on spirit of “stalking” - an urban exploration, searching and exploring mysterious, abandoned and forgotten by humanity pieces of our planet. Stay Out is a free to play, survival and multiplayer game developed and published by MOBITECH LLC. Released on November 27th 2019 has received 25,334 reviews of which 16,483 were positive and 8,851 were negative resulting in a rating of 6.4 out of 10. Attracting a solid base of 589 players due to its free access, this strategy game has achieved the #6 position in the best free online co-op games on Steam.
6.4
16,483
8,851
589
players
7. BAPBAP
Join BAPBAP, the Roguelike Party game where no two matches are ever the same. Round up your homies, pick a character, and build a giga-unfair build that'll make them hate you - then do it all over again! BAPBAP is a early access, pvp and deckbuilding game developed and published by BAP HQ. Released on March 12th 2025 has received 1,384 reviews of which 1,107 were positive and 277 were negative resulting in a rating of 7.7 out of 10. Attracting a solid base of 332 players due to its free access, this strategy game has achieved the #7 position in the best free online co-op games on Steam.
7.7
1,107
277
332
players
8. 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 is a multiplayer, online co-op and co-op campaign game developed and published by Chromatic Games. Released on June 20th 2017 has received 21,785 reviews of which 16,859 were positive and 4,926 were negative resulting in a rating of 7.6 out of 10. Attracting a solid base of 303 players due to its free access, this strategy game has achieved the #8 position in the best free online co-op games on Steam.
7.6
16,859
4,926
303
players
9. 3on3 FreeStyle: Rebound
3on3 FreeStyle: Rebound allows players to work with their teammates to pull off rim-shaking slam dunks, awe-inspiring alley-oops, flashy no-look passes, and clutch outside shots which breaks the heart of the opposing team in competitive games filled with the joy and energy of street basketball. 3on3 FreeStyle: Rebound is a basketball, team-based and pvp game developed and published by Joycity. Released on July 14th 2020 has received 3,764 reviews of which 2,386 were positive and 1,378 were negative resulting in a rating of 6.2 out of 10. Attracting a solid base of 201 players due to its free access, this strategy game has achieved the #9 position in the best free online co-op games on Steam.
6.2
2,386
1,378
201
players
10. 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 developed and published by IronZog. Released on December 09th 2020 has received 4,385 reviews of which 3,756 were positive and 629 were negative resulting in a rating of 8.3 out of 10. Attracting a solid base of 199 players due to its free access, this strategy game has achieved the #10 position in the best free online co-op games on Steam.
8.3
3,756
629
199
players