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
Let's Minesweeper
This is an online Minesweeper game that allows worldwide players to play simultaneously! Across 48 million tiles, each game has over 10 million mines. Dive into a minefield, claim your territory, clear the mines and have fun!
Lost Castle 2
"Lost Castle 2" is a 2D Beat'em up Rogue-Lite game. Explore abundant treasures and items to enhance yourself, master various weapons to showcase your skills, and challenge powerful monsters to demonstrate your strength. A new adventure is calling for treasure hunters!
Into the Radius 2
Into the Radius 2 is an immersive VR survival shooter, set in a realm of surreal landscapes and deadly entities known as Pechorsk Anomaly. Arm yourself with realistic weapons and venture deeper into the mysteries that lie within, either solo or with a friend by your side.
TerraScape
Build gorgeous kingdoms on floating islands by strategically placing buildings in this cozy City-Puzzler. Discover secret combinations, take on weekly challenges and explore randomly generated maps in various single- and multiplayer game modes.
Enlisted
In Enlisted, you are not only commanding a single soldier, but an entire squad! This MMO squad based shooter recreates the key battles of the bloodiest war of the 20th century, with hundreds of soldiers, tanks and aircraft taking part in each battle.
Project Unknown
An online co-op horror game featuring unique playable characters and RPG mechanics. Exorcise ghosts using your special abilities and tools while surviving the supernatural onslaught
DeathWatchers
Use the specialized equipment at your disposal to locate & log as many paranormal events as possible. Decipher the ingredients needed for your ritual and try to exorcise any demons within. Any incorrect ingredients and you may never leave! 1-4 Players
Nevergrind Online
Nevergrind Online is the ultimate dungeon-crawl multiplayer blobber RPG focused on treasure hunting and slaying monsters! Create your hero and start climbing the ladder in normal mode—or, for those seeking the ultimate challenge, hardcore mode! No microtransactions ever!
Once Human
Once Human is a multiplayer open-world survival game set in a strange, post-apocalyptic future. Unite with friends to fight monstrous enemies, uncover secret plots, compete for resources, and build your own territory. Once, you were merely human. Now, you have the power to remake the world.
KunKun dream Startles the Soul
Multiplayer , yes! You have been trapped in KunKun's dream, you and your trapped companions have to find a way to escape and avoid these Grotesque Object! Grotesque Objectlike playing basketball and worship chickens, hate watermelons, and even come Let me see
ASKA
Lay claim to unspoiled lands and pave the way for a fierce Viking tribe. Craft the ultimate settlement solo or together with up to x3 friends. Trust in the Gods and the power of the Eye of Odin and summon intelligent NPC villagers to provide camaraderie and relief from the toils of survival.
Chained Together
From the depths of hell, climb chained to your friends through diverse worlds. Solo or co-op, try to reach the summit and discover what awaits you there...
Avatar: Frontiers of Pandora™
Avatar: Frontiers of Pandora™ is a first-person, action-adventure game set in the Western Frontier. Reconnect with your lost heritage and discover what it truly means to be Na'vi as you join other clans to protect Pandora.
TFC: The Fertile Crescent
Gather resources, build your base, and lead your people to victory in this captivating reimagining of classic base-building RTS, set in the Bronze Age. Secure fertile land, fend off raids, and stockpile food to generate knowledge and unlock powerful village advancements.
Dark and Darker
An unforgiving hardcore fantasy FPS dungeon PvPvE adventure. Band together with your friends and use your courage, wits, and cunning to uncover mythical treasures, defeat gruesome monsters, while staying one step ahead of the other devious treasure-hunters.
Sneak Out
Sneak Out is a free to play multiplayer game full of mischief and fun for up to six players. Enter the Haunted Castle and prepare to hunt, hide, or prank 'em all, causing all kinds of hilarious mayhem while trying to win the deadly game of hide and seek!
Diabotical Rogue
Welcome to our online first-person shooter that combines fast-paced combat and roguelike upgrades. Choose from 4 base suits each with their unique flair. Improvise. Adapt. Overcome your opponents and teammates alike.
Killer Klowns from Outer Space: The Game
Plan your own alien invasion and harvest humans as the iconic Killer Klowns, or gather a team of survivors to fight the extraterrestrial threat, in a game based on the ‘80s cult classic movie. Welcome to a new, craazzy take on the asymmetrical multiplayer horror experience!
Night of the Dead
'Night of the Dead' is an open-world game that combines elements of exploration, tower defense, survival, and crafting. Traverse a world dominated by zombies while collecting various resources and powerful equipment. Build a fortress to survive the hordes of zombies that swarm every night!
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 June 15th 2025.
1. ELDEN RING NIGHTREIGN
ELDEN RING NIGHTREIGN is a standalone adventure within the ELDEN RING universe, crafted to offer players a new gaming experience by reimagining the game’s core design. ELDEN RING NIGHTREIGN is a souls-like, online co-op and rogue-like game developed by FromSoftware and Inc. and published by FromSoftware, Inc. and Bandai Namco Entertainment. Released on May 29th 2025 has received 65,672 reviews of which 48,901 were positive and 16,771 were negative resulting in a rating of 7.4 out of 10. The game has hit the top spot as the #1 most played online co-op game, thanks to its 119,305 peak concurrent players over the last day.
7.4
48,901
16,771
119,305
players
2. 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 1,017,635 reviews of which 775,883 were positive and 241,752 were negative resulting in a rating of 7.6 out of 10. While seeing 59,219 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
775,883
241,752
59,219
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 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 48,439 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
630,223
166,993
48,439
players
4. 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 430,252 reviews of which 330,349 were positive and 99,903 were negative resulting in a rating of 7.6 out of 10. With 46,727 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played online co-op games.
7.6
330,349
99,903
46,727
players
5. 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. With 39,619 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played online co-op games.
9.5
179,154
6,488
39,619
players
6. 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 499,828 reviews of which 471,451 were positive and 28,377 were negative resulting in an impressive rating of 9.4 out of 10. With 18,183 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played online co-op games.
9.4
471,451
28,377
18,183
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 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 online co-op games.
9.5
736,611
32,168
13,083
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 78,080 reviews of which 67,486 were positive and 10,594 were negative resulting in a rating of 8.5 out of 10. With 11,807 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played online co-op games.
8.5
67,486
10,594
11,807
players
9. 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 353,960 reviews of which 344,269 were positive and 9,691 were negative resulting in an impressive rating of 9.6 out of 10. With 9,320 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played online co-op games.
9.6
344,269
9,691
9,320
players
10. Dying Light
First-person action survival game set in a post-apocalyptic open world overrun by flesh-hungry zombies. Roam a city devastated by a mysterious virus epidemic. Scavenge for supplies, craft weapons, and face hordes of the infected. Dying Light is a zombies, survival horror and horror game developed and published by Techland. Released on January 27th 2025 has received 457,632 reviews of which 435,687 were positive and 21,945 were negative resulting in an impressive rating of 9.4 out of 10. With 9,004 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played online co-op games.
9.4
435,687
21,945
9,004
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 June 15th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted online co-op games.
1. 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. Featuring a massive 99% discount, this game currently holds the #1 spot in the best deals for online co-op category.
7.9
16,874
4,216
-99%
28.99€
0.48€
2. 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. Thanks to its incredible 99% discount, this game is now the #2 best deal in online co-op games.
6.8
447
180
-99%
19.50€
0.38€
3. 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. Thanks to its incredible 98% discount, this game is now the #3 best deal in online co-op games.
8.7
11,924
1,455
-98%
29.99€
0.62€
4. 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 126,866 reviews of which 111,325 were positive and 15,541 were negative resulting in a rating of 8.7 out of 10. Currently offered at a significant 98% discount, this title has earned the #4 position in the best deals for online co-op games.
8.7
111,325
15,541
-98%
27.99€
0.82€
5. 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 strategy game developed by IronOak Games and published by Curve Games. Released on April 19th 2018 has received 41,487 reviews of which 36,581 were positive and 4,906 were negative resulting in a rating of 8.7 out of 10. Currently offered at a significant 98% discount, this title has earned the #5 position in the best deals for online co-op games.
8.7
36,581
4,906
-98%
19.99€
0.50€
6. Main Assembly
You’re the designer, engineer and architect if you can imagine it you can create it! Construct robots of any shape or size from eight-legged spider bots to eerie UFO contraptions. Main Assembly is a 3d, online co-op and co-op game developed by Bad Yolk Games and published by Team17. Released on January 26th 2021 has received 1,314 reviews of which 1,115 were positive and 199 were negative resulting in a rating of 8.1 out of 10. Currently offered at a significant 98% discount, this title has earned the #6 position in the best deals for online co-op games.
8.1
1,115
199
-98%
19.99€
0.43€
7. Retimed
Dash and dodge bullet clusters in nerve-wracking slow motion moments and challenge your friends online or offline to awesome and fast paced battles with up to 4 players! Retimed is a multiplayer, online co-op and comedy game developed by Team Maniax and published by Stray Fawn Publishing and WhisperGames. Released on December 05th 2019 has received 352 reviews of which 294 were positive and 58 were negative resulting in a rating of 7.8 out of 10. Currently offered at a significant 98% discount, this title has earned the #7 position in the best deals for online co-op games.
7.8
294
58
-98%
14.90€
0.44€
8. 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 4,053 reviews of which 3,192 were positive and 861 were negative resulting in a rating of 7.6 out of 10. Currently offered at a significant 98% discount, this title has earned the #8 position in the best deals for online co-op games.
7.6
3,192
861
-98%
14.99€
0.41€
9. 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 1,884 reviews of which 1,277 were positive and 607 were negative resulting in a rating of 6.6 out of 10. Currently offered at a significant 98% discount, this title has earned the #9 position in the best deals for online co-op games.
6.6
1,277
607
-98%
14.99€
0.31€
10. Sugar Shack
Grab some friends, fire up the boiler, and let the syrup flow! Build the world around your cabin as you fulfill orders of hungry villagers with endless sweet tooths. There's never a dull moment in this cozy forest inspired by Quebec lore and art! Sugar Shack is a online co-op, co-op and indie game developed by MadLife Divertissement and published by indie.io. Released on September 14th 2023 has received 306 reviews of which 208 were positive and 98 were negative resulting in a rating of 6.5 out of 10. Currently offered at a significant 98% discount, this title has earned the #10 position in the best deals for online co-op games.
6.5
208
98
-98%
18.49€
0.46€
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 June 15th 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 67,435 reviews of which 63,994 were positive and 3,441 were negative resulting in an impressive rating of 9.3 out of 10. With 6,046 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
63,994
3,441
6,046
players
2. Game of Thrones: Kingsroad
A story-driven action-adventure RPG, bringing the world of Westeros to life with remarkable detail and never-before seen scale. Game of Thrones: Kingsroad is a online co-op, multiplayer and choose your own adventure game developed by Netmarble Neo and published by Netmarble. Released on May 21st 2025 has received 3,607 reviews of which 2,230 were positive and 1,377 were negative resulting in a rating of 6.1 out of 10. Thanks to its free to play tag and a daily player base of 3,614, this online co-op game has secured the #2 spot in the ranking of free online co-op games on Steam.
6.1
2,230
1,377
3,614
players
3. 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 128,011 reviews of which 108,841 were positive and 19,170 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 3,386, this online co-op game has secured the #3 spot in the ranking of free online co-op games on Steam.
8.4
108,841
19,170
3,386
players
4. 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 72,691 reviews of which 63,019 were positive and 9,672 were negative resulting in a rating of 8.5 out of 10. Attracting a solid base of 2,819 players due to its free access, this strategy game has achieved the #4 position in the best free online co-op games on Steam.
8.5
63,019
9,672
2,819
players
5. 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 71,223 reviews of which 63,756 were positive and 7,467 were negative resulting in a rating of 8.8 out of 10. Attracting a solid base of 1,577 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
63,756
7,467
1,577
players
6. 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 37,450 reviews of which 33,440 were positive and 4,010 were negative resulting in a rating of 8.8 out of 10. Attracting a solid base of 1,365 players due to its free access, this strategy game has achieved the #6 position in the best free online co-op games on Steam.
8.8
33,440
4,010
1,365
players
7. 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 21,823 reviews of which 16,882 were positive and 4,941 were negative resulting in a rating of 7.6 out of 10. Attracting a solid base of 395 players due to its free access, this strategy game has achieved the #7 position in the best free online co-op games on Steam.
7.6
16,882
4,941
395
players
8. 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 1,856 reviews of which 1,484 were positive and 372 were negative resulting in a rating of 7.7 out of 10. Attracting a solid base of 368 players due to its free access, this strategy game has achieved the #8 position in the best free online co-op games on Steam.
7.7
1,484
372
368
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 3,864 reviews of which 2,442 were positive and 1,422 were negative resulting in a rating of 6.2 out of 10. Attracting a solid base of 322 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
2,442
1,422
322
players
10. 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 developed and published by Sven Co-op team. 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. Attracting a solid base of 317 players due to its free access, this strategy game has achieved the #10 position in the best free online co-op games on Steam.
9.2
29,316
2,000
317
players