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.

Filters & Lists

Old World

Old World is a revolutionary new historical strategy game where you lead your dynasty over generations of rule against rival kings and queens. Wage massive wars, manage your court, and build a dynasty — or watch your empire crumble to dust. What legacy will you leave behind?

Price -95% 1.99€
Rating 8.0
Release 18 May 2022

Outward Definitive Edition

No remarkable journey is achieved without great effort. In Outward, the cold of the night or an infected wound can be as dangerous as a predator lurking in the dark. Explore the vast world of Aurai solo or in Co-op. The Definitive Edition features both DLCs and quality of life improvements.

Price -88% 4.66€
Rating 7.2
Release 17 May 2022

World Seed

A simple game with big ambitions. Fight creatures, explore the world and progress your character in this ever changing world.

Price Free to play
Rating 7.1
Release 17 May 2022

Plants vs. Zombies™ Garden Warfare 2: Deluxe Edition

Ready the Peashooters and prepare for the craziest, funniest shooter in the universe: Plants vs. Zombies Garden Warfare 2.

Price 29.99€
Rating 8.9
Release 16 May 2022

I'm on Observation Duty 5

As an employee of a mysterious organization your job is to monitor live surveillance camera footage and spot anomalies using your sharp eyes and good memory. Can you survive the entire night shift or will you succumb into paranoia?

Price 9.75€
Rating 9.0
Release 13 May 2022

Miner Ultra Adventures 2

Our friend Miner is back !!! Amazing adventures with extreme difficulty, this 3d platform game will surprise you and give you a lot of satisfaction to overcome all the challenges !!! Be versatile and have quick reflexes to be the best !!!

Price 5.89€
Rating 6.5
Release 12 May 2022

We Were Here Forever

You both awaken imprisoned inside the sinister Castle Rock - were you betrayed, or simply not that clever? Find out in the greatest co-op puzzle adventure in the We Were Here Series! Do you and your partner have what it takes to face the dark forces of this realm or will you be trapped… forever?

Price 17.99€
Rating 8.9
Release 10 May 2022

Sneak Thief

Sneak Thief is a first person, shooter, strategy, stealth and puzzle game that lets you choose how you want to play. Use your wits and expertise to setup and perform heists whether that be by using brute force to smash your way through or by getting away without making a sound.

Price 14.79€
Rating 7.2
Release 07 May 2022

Line War

A new type of RTS-style game with elements from 4X, Wargame, and Real-Time Tactics genres. Draw commands and execute a superior strategy to win over your opponent without the need for micro-management.

Price -50% 12.25€
Rating 7.6
Release 05 May 2022

Argentum Online

Argentum Online, a 2D MMORPG, offers epic quests, dungeon delves, and battles in a fantasy world. Emphasizing community, it features alliances, PvP, and a player-driven economy, all within a vibrant open-world setting.

Price Free to play
Rating 7.1
Release 29 Apr 2022

THE HOUSE OF THE DEAD: Remake

THE HOUSE OF THE DEAD: Remake is a remade version of the game introduced in 1997 in arcade platform. A classic arcade rail-shooter receives a whole new entourage and gameplay changes to suit modern gaming standards.

Price -52% 11.90€
Rating 6.7
Release 28 Apr 2022

Trolley Problem, Inc.

Trolley Problem, Inc. is a darkly comedic narrative game based on real-world philosophical papers, in which you are asked to make a series of impossible choices from two awful answers. Wrestle with your moral compass, decide the fate of millions – and compare your choices with the rest of the world.

Price -82% 1.93€
Rating 6.6
Release 21 Apr 2022

FurryFury: Smash & Roll

A dynamic beast-rolling turn-based online arena puzzle brawler on physics.

Price 4.99€
Rating 7.8
Release 14 Apr 2022

IronWolf VR

IronWolf VR is a roomscale submarine game playable either singleplayer or online co-op with motion controls. Built from the ground up for VR, each part of the submarine has been crafted for an optimal VR experience.

Price 18.99€
Rating 9.0
Release 12 Apr 2022

Godfall Ultimate Edition

Aperion is on the precipice of ruin. You are the last of the Valorian knights, god-like warriors able to equip Valorplates, legendary armor sets that transform wielders into unstoppable masters of melee combat. Ascend in Godfall, the first-of-its-kind, looter-slasher, melee action-RPG.

Price 39.99€
Rating 6.2
Release 07 Apr 2022

LEGO® Star Wars™: The Skywalker Saga

Play through all nine Skywalker saga films in a game unlike any other. With over 300 playable characters, over 100 vehicles, and 23 planets to explore, a galaxy far, far away has never been more fun! *Includes classic Obi-Wan Kenobi playable character

Price 49.99€
Rating 8.9
Release 05 Apr 2022

Knightfall: A Daring Journey

Two knights, a strong bond, and a long journey. Take up the race for the rose, ride from town to town and take shelter before nightfall by any means necessary! If your bond is strong and your horse drifts well, you can be the recipient of the fabled rose. Luckily you brought guns!

Price Free to play
Rating 8.7
Release 01 Apr 2022

Tree Simulator 2023

It's exactly what it sounds like! Have you ever wanted to be a tree? Do you like odd numbers? How about multiplayer, weather, seasons and more!? Well then this is the game for you! Come on down to a place where you will never want to leaf. Relax and be the best tree you can be. 1-250 players.

Price 7.79€
Rating 9.0
Release 01 Apr 2022

Tumbleweed Destiny

The somewhat hateful and slightly charming tumbleweed is the star of the game. This game is a tumbleweed life simulator that depicts the fate of tumbleweeds in my own imagination.

Price 2.99€
Rating 8.8
Release 31 Mar 2022

*NEW* SCUFFED BHOP SIMULATION 2026 GOTY EDITION

The long-awaited sequel to the hit game *NEW* SCUFFED EPIC BHOP SIMULATOR 2023 (POG CHAMP) is here! All new SinglePlayer maps with popular maps returning from the first game! Play online multiplayer cross platform with all new modes and experiences!

Price Free to play
Rating 7.5
Release 25 Mar 2022

Shredders

Break into the snowboarding event of the year in the hope of scoring a wildcard entry to an exclusive invitational. To prove you’re up to the challenge, master the art of park riding, buttering, rails and massive kickers and earn your place in the world of snowboarding.

Price 29.99€
Rating 9.1
Release 16 Mar 2022

Young Souls

Young Souls is a gorgeous 2D brawler meets story-rich action RPG. Fight hordes of belligerent goblins, level up with hundreds of weapons and accessories, explore, and journey between worlds, as rebellious twins battle their way to save their foster father.

Price -71% 7.25€
Rating 7.9
Release 10 Mar 2022

Grand Mountain Adventure: Wonderlands

Grand Mountain Adventure: Wonderlands lets you explore freely and at your pace entire ski resorts and the surrounding mountains. Unlock ski lifts and reach new areas by competing in challenges, or enjoy the scenery while you find your own path down the mountains.

Price 19.99€
Rating 8.5
Release 10 Mar 2022

BrainBread 2

Grab a weapon, demolish your enemies, level up, become more powerful, let the gore flow, let the limbs fly. BrainBread 2 introduces a zombie fps mixed with RPG / Arcade elements, the game is very action-packed and generally fast-paced.

Price Free to play
Rating 7.2
Release 09 Mar 2022

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 April 30th 2025.

1. 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 145,504 reviews of which 143,373 were positive and 2,131 were negative resulting in an impressive rating of 9.7 out of 10. The game has hit the top spot as the #1 most played co-op game, thanks to its 86,891 peak concurrent players over the last day.
9.7
143,373
2,131

86,891
players

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 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. While seeing 56,367 players online at once in the last 24 hours, this game is currently ranked #2 among co-op games based on player count.
9.5
136,708
4,957

56,367
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 co-op games based on player count.
7.9
624,264
165,777

28,299
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 zombies, co-op and fps game developed and published by Valve. Released on November 16th 2009 has received 955,598 reviews of which 932,058 were positive and 23,540 were negative resulting in an impressive rating of 9.7 out of 10. With 17,964 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played co-op games.
9.7
932,058
23,540

17,964
players

5. 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 #5 spot among the most played co-op games.
9.5
732,704
31,876

10,655
players

6. 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 662,726 reviews of which 593,971 were positive and 68,755 were negative resulting in a rating of 8.9 out of 10. With 8,920 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played co-op games.
8.9
593,971
68,755

8,920
players

7. 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 495,991 reviews of which 472,630 were positive and 23,361 were negative resulting in an impressive rating of 9.4 out of 10. With 8,803 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played co-op games.
9.4
472,630
23,361

8,803
players

8. Monster Hunter: World

Welcome to a new world! In Monster Hunter: World, the latest installment in the series, you can enjoy the ultimate hunting experience, using everything at your disposal to hunt monsters in a new world teeming with surprises and excitement. Monster Hunter: World is a co-op, multiplayer and action game developed and published by CAPCOM Co. and Ltd.. Released on August 08th 2018 has received 490,118 reviews of which 431,253 were positive and 58,865 were negative resulting in a rating of 8.7 out of 10. With 7,279 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played co-op games.
8.7
431,253
58,865

7,279
players

9. 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 warhammer 40k, action and multiplayer game developed by Saber Interactive and published by Focus Entertainment. Released on September 09th 2024 has received 158,929 reviews of which 131,518 were positive and 27,411 were negative resulting in a rating of 8.2 out of 10. With 6,956 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played co-op games.
8.2
131,518
27,411

6,956
players

10. 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 survival, open world and multiplayer game developed by Endnight Games Ltd and published by Newnight . Released on February 22nd 2024 has received 250,834 reviews of which 220,004 were positive and 30,830 were negative resulting in a rating of 8.7 out of 10. With 5,388 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played co-op games.
8.7
220,004
30,830

5,388
players

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 April 30th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted co-op games.

1. 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 22,742 reviews of which 16,844 were positive and 5,898 were negative resulting in a rating of 7.3 out of 10. Featuring a massive 97% discount, this game currently holds the #1 spot in the best deals for co-op category.
7.3
16,844
5,898

-97% 34.00€ 1.02€

2. Kitaria Fables

Action Adventure fused with RPG and Farming elements. Armed with sword, bow and spellbook, fight against a rising darkness threatening the world. Plunder dungeons in search of relics and resources, tend to your farm to make provisions and potions, and take on quests solo, or with a friend! Kitaria Fables is a co-op, action rpg and farming sim game developed by Twin Hearts and Secret Level Studios and published by PQube. Released on September 01st 2021 has received 1,499 reviews of which 1,081 were positive and 418 were negative resulting in a rating of 7.0 out of 10. Thanks to its incredible 95% discount, this game is now the #2 best deal in co-op games.
7.0
1,081
418

-95% 20.40€ 1.02€

3. 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. Thanks to its incredible 95% discount, this game is now the #3 best deal in co-op games.
6.9
445
174

-95% 20.00€ 1.00€

4. Degrees of Separation

Degrees of Separation is a puzzle platformer where cooperation is built into every move. Two contrasting souls, Ember and Rime, fall in love, but are separated by an enigmatic force, and must use their powers to progress through a spectacular world of fantasy and adventure. Degrees of Separation is a local co-op, puzzle-platformer and 2d platformer game developed by Moondrop and published by Maximum Entertainment. Released on February 13th 2019 has received 1,092 reviews of which 895 were positive and 197 were negative resulting in a rating of 7.8 out of 10. Currently offered at a significant 94% discount, this title has earned the #4 position in the best deals for co-op games.
7.8
895
197

-94% 20.00€ 1.20€

5. 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. Currently offered at a significant 93% discount, this title has earned the #5 position in the best deals for co-op games.
8.7
11,828
1,428

-93% 28.14€ 1.97€

6. Borderlands: The Pre-Sequel

Launch into the Borderlands universe and shoot ‘n’ loot your way through a brand new adventure that rockets you onto Pandora’s moon in Borderlands: The Pre-Sequel! Borderlands: The Pre-Sequel is a looter shooter, co-op and fps game developed by 2K Australia, Gearbox Software and Aspyr (Linux) and published by Aspyr (Linux) and 2K. Released on October 16th 2014 has received 41,307 reviews of which 33,563 were positive and 7,744 were negative resulting in a rating of 8 out of 10. Currently offered at a significant 93% discount, this title has earned the #6 position in the best deals for co-op games.
8
33,563
7,744

-93% 42.00€ 2.94€

7. 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 #7 position in the best deals for co-op games.
7.7
3,164
838

-93% 15.29€ 1.07€

8. 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. F.E.A.R. 3 is a fps, horror and co-op game developed by Day 1 Studios and published by Warner Bros. Interactive Entertainment. Released on June 21st 2011 has received 12,665 reviews of which 9,019 were positive and 3,646 were negative resulting in a rating of 7 out of 10. Currently offered at a significant 93% discount, this title has earned the #8 position in the best deals for co-op games.
7
9,019
3,646

-93% 19.71€ 1.38€

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 1,876 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 #9 position in the best deals for co-op games.
6.6
1,271
605

-93% 14.29€ 1.00€

10. 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 #10 position in the best deals for co-op games.
9.1
17,894
1,357

-92% 12.50€ 1.00€

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 April 30th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play co-op games.

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 free to play, naval combat and action game developed and published by Wargaming Group Limited. Released on November 15th 2017 has received 146,077 reviews of which 112,696 were positive and 33,381 were negative resulting in a rating of 7.6 out of 10. With 3,513 active players enjoying it for free, this strategy game has reached the #1 spot among the top free co-op games on Steam.
7.6
112,696
33,381

3,513
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 free to play, multiplayer and horror game developed and published by Northwood Studios. Released on December 29th 2017 has received 212,134 reviews of which 194,042 were positive and 18,092 were negative resulting in an impressive rating of 9.0 out of 10. Thanks to its free to play tag and a daily player base of 2,310, this co-op game has secured the #2 spot in the ranking of free co-op games on Steam.
9.0
194,042
18,092

2,310
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 free to play, multiplayer and heist game developed and published by Duhndal. Released on December 15th 2023 has received 37,407 reviews of which 34,213 were positive and 3,194 were negative resulting in a rating of 9.0 out of 10. Thanks to its free to play tag and a daily player base of 512, this co-op game has secured the #3 spot in the ranking of free co-op games on Steam.
9.0
34,213
3,194

512
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 multiplayer, free to play and combat game developed by 1C Game Studios and published by FOR-GAMES CR LTD. Released on April 12th 2023 has received 20,360 reviews of which 15,552 were positive and 4,808 were negative resulting in a rating of 7.5 out of 10. Attracting a solid base of 336 players due to its free access, this strategy game has achieved the #4 position in the best free co-op games on Steam.
7.5
15,552
4,808

336
players

5. 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 multiplayer, 2d fighter and co-op game developed by Player First Games and published by Warner Bros. Games. Released on July 19th 2022 has received 118,015 reviews of which 90,326 were positive and 27,689 were negative resulting in a rating of 7.6 out of 10. Attracting a solid base of 327 players due to its free access, this strategy game has achieved the #5 position in the best free co-op games on Steam.
7.6
90,326
27,689

327
players

6. 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 31,225 reviews of which 29,228 were positive and 1,997 were negative resulting in an impressive rating of 9.2 out of 10. Attracting a solid base of 168 players due to its free access, this strategy game has achieved the #6 position in the best free co-op games on Steam.
9.2
29,228
1,997

168
players

7. 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 multiplayer, free to play and co-op game developed and published by Duhndal. Released on August 30th 2022 has received 27,911 reviews of which 25,726 were positive and 2,185 were negative resulting in an impressive rating of 9.0 out of 10. Attracting a solid base of 163 players due to its free access, this strategy game has achieved the #7 position in the best free co-op games on Steam.
9.0
25,726
2,185

163
players

8. 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 free to play, co-op and escape room game developed and published by Total Mayhem Games. Released on February 03rd 2017 has received 29,725 reviews of which 26,809 were positive and 2,916 were negative resulting in a rating of 8.8 out of 10. Attracting a solid base of 133 players due to its free access, this strategy game has achieved the #8 position in the best free co-op games on Steam.
8.8
26,809
2,916

133
players

9. E.T.E

The 3D anime-style shooting game "E.T.E" is launching early access soon. It offers three unique environments—sea, land, and air—plus a system for developing female characters and mechas. Famous voice actresses like Sakura Tange, Kana Hanazawa, Rie Tanaka, and Mikako Komatsu voice the characters. E.T.E is a free to play, co-op and strategy game developed by E.T.E studio and published by Exotech Game. Released on April 14th 2025 has received 701 reviews of which 481 were positive and 220 were negative resulting in a rating of 6.6 out of 10. The game currently holds the #9 spot among the most played free co-op games on Steam.
6.6
481
220

77
players

10. 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 twin stick shooter, pve and top-down shooter game developed and published by Reactive Drop Team. Released on April 20th 2017 has received 22,524 reviews of which 21,381 were positive and 1,143 were negative resulting in an impressive rating of 9.3 out of 10. The game currently holds the #10 spot among the most played free co-op games on Steam.
9.3
21,381
1,143

60
players