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

Solstice Chronicles: MIA

In this 2-player twin-stick shooter, use a friendly drone for a game-changing abilities. Survive waves, upgrade, and uncover the mystery in this cooperative, action-packed experience.

Price 12.49€
Rating 7.0
Release 26 Jul 2017

Airmen

Airmen is a first person ship building and battling game featuring airships, landships and watercraft. Crew your ship solo or alongside friends on dangerous expeditions into the archipelago to complete contracts, collect resources, and upgrade your ships.

Price 14.99€
Rating 7.3
Release 25 Jul 2017

Just Cause™ 3: Multiplayer Mod

Just Cause 3 Multiplayer mod is a free fan-created project bringing an explosive and highly-customizable multiplayer.

Price Free to play
Rating 7.6
Release 20 Jul 2017

Ultrawings

Ultrawings is an aerial-themed, open-world flight game where you use your virtual hands to fly multiple aircraft to complete a variety of missions across a beautiful, island-themed world!

Price 12.49€
Rating 8.2
Release 20 Jul 2017

Einar

The player takes on the role of Einar, who is on a quest to kill the inhabitants of a Norse fishing village who are infected by a mysterious material. Use different weapons such as the bow, hammer and axe to clear the village of the monsters.

Price Free to play
Rating 6.0
Release 20 Jul 2017

Fly Simulator

You work as a waiter and lead an uphill battle for their clients. You pushing back the flies from the food, otherwise you'll never get anything. Maybe you are a hungry insect trying to increase their population? Choose the opposing side. The war is already underway.

Price 2.99€
Rating 6.4
Release 16 Jul 2017

Rusted Warfare - RTS

{{An RTS inspired by the classics of the past!}} Making up for it's subpar retro graphics with fun gameplay and modern multi-threaded tech enabling huge battles to run smooth... Featuring singleplayer challenges, skirmish, sandbox, 10-player multiplayer & workshop modding.

Price 4.99€
Rating 9.3
Release 14 Jul 2017

Masked Forces: Zombie Survival

What will you do when the zombie apocalypse comes, are you ready to tackle it right now and stay face to face with all the horrors that will appear?

Price 0.99€
Rating 6.8
Release 14 Jul 2017

Unturned

You're a survivor in the zombie infested ruins of society, and must work with your friends and forge alliances to remain among the living.

Price Free to play
Rating 9.1
Release 07 Jul 2017

CRYPTARK

Cryptark is a 2D sci-fi shooter where you take on the role of a heavily armed privateer seeking to earn government contracts by boarding deadly alien space-hulks. It's up to you to strategize a plan of attack, pick an equipment loadout, and destroy the central core to be victorious.

Price 14.99€
Rating 7.9
Release 20 Jun 2017

Nex Machina

Nex Machina is an intense arcade style twin-stick shooter from Housemarque. Taking hints from both Robotron and Smash TV, Nex Machina focuses on pure action, voxel destruction and competition in the distant, cablepunk themed future.

Price 19.99€
Rating 8.3
Release 20 Jun 2017

Serious Sam's Bogus Detour

Serious Sam’s Bogus Detour is an all-new action-adventure in the legendary Serious Sam saga from Hammerwatch developer Crackshell.

Price 9.75€
Rating 7.7
Release 20 Jun 2017

Colony Survival

Colony Survival is a unique first-person strategy game developed by a two-man team. Build your own colony in a voxel world. Command guards, farmers, miners and other colonists. Defend your colony against the horde of monsters that attacks every night!

Price 24.95€
Rating 8.9
Release 16 Jun 2017

Air Missions: HIND

Air Missions: HIND is an action combat flight simulator based on the Russian Mi-24 Hind assault helicopter. You will be deployed to the battlefield either on your own or with a friend.

Price -50% 8.49€
Rating 7.5
Release 14 Jun 2017

Pixel Worlds: MMO Sandbox

Award winning indie game studio Kukouri welcomes you to our multiplatform MMO sandbox: Pixel Worlds! (” Best Indie Game Developer ” Global Mobile Game Awards 2019) Play free with friends, create your own worlds and stories. Fight off the enemies and get awesome items in this award winning indie MMO!

Price Free to play
Rating 7.3
Release 08 Jun 2017

Strikey Sisters

Say hello to a fantasy themed action arcade brick breaker! Featuring cute characters, silly humor, powerful magic, crazy bosses, and even local 2 player co-op mode!

Price 9.99€
Rating 8.4
Release 01 Jun 2017

Hover

Experience the thrills of a fast-paced single and multiplayer Parkour game. Join the Rebellion and deride the security forces of an anti-leisure tyranny. Rise up to the many challenges of a futuristic Open World. Assemble your team, enhance your gear and perform incredible tricks and combos.

Price 19.99€
Rating 7.7
Release 31 May 2017

Star Trek™: Bridge Crew

Star Trek™: Bridge Crew, playable in both VR and non-VR, will immerse you in the Star Trek universe. In co-op, form a crew of four players to serve in the roles of Captain, Helm, Tactical or Engineer. Make strategic decisions and coordinate actions with your crew.

Price 24.99€
Rating 7.3
Release 30 May 2017

Life is Feudal: Forest Village

LiF:Forest Village is a city builder with survival aspects in a realistic harsh medieval world. Shape, build and expand your settlement, grow various food to prevent your villagers from avitaminosis and starvation. Possess them for additional micromanagement or simply to wander around.

Price -93% 1.72€
Rating 6.5
Release 26 May 2017

Caveblazers

Caveblazers is a challenging and brutal roguelike platformer. Journey into a mysterious cave, fighting orcs and goblins with an abundance of weapons and magical items! Make friends along the way, then watch in despair as they are crushed in to a bloody pulp under a troll's fist.

Price -90% 1.00€
Rating 8.3
Release 24 May 2017

Steel Division: Normandy 44

Steel Division: Normandy is a tactical real-time strategy (RTS) game that pits players against AI enemies in a single-player campaign -- or against several opponents in massive 10-on-10 multiplayer battles.

Price -70% 5.99€
Rating 7.3
Release 23 May 2017

Portal Knights

The world of Elysia needs YOU! Join this cooperative, 3D sandbox action RPG to level up your character, craft epic weapons, conquer enemies in real-time, and build almost anything! Craft your adventure. Forge your hero. Become the ultimate Portal Knight!

Price -88% 2.33€
Rating 8.2
Release 18 May 2017

ENDLESS™ Space 2

ENDLESS™ Space 2 is a Strategic Space Opera, featuring the compelling “just one more turn” gameplay, set in the mysterious ENDLESS™ Universe. As the leader of your civilization, will you impose your vision and build the greatest stellar empire?

Price -75% 9.99€
Rating 8.2
Release 18 May 2017

The Surge

Welcome to CREO, the megacorporation saving the world! A catastrophic event has knocked you out during the first day on the job… you wake up equipped with a heavy-grade exoskeleton, in a destroyed section of the complex.

Price -82% 2.64€
Rating 7.4
Release 15 May 2017

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