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

LEGO® DC Super-Villains

It's good to be bad… Embark on an all-new DC/LEGO® adventure by becoming the best villain the universe has seen. Players will create and play as an all-new super-villain throughout the game, unleashing mischievous antics and wreaking havoc in an action-packed story.

Price 39.99€
Rating 8.9
Release 16 Oct 2018

WARRIORS OROCHI 4

The supreme "WARRIORS OROCHI" experience is here! The definitive installment of the "WARRIORS OROCHI 4", featuring all the content of the WARRIORS OROCHI 4: The Ultimate Upgrade Pack, is available now.

Price 69.99€
Rating 8.4
Release 15 Oct 2018

NBA 2K Playgrounds 2

NBA arcade action is back with NBA 2K Playgrounds 2! Pick your team, get ready to jam, and Ball Without Limits!

Price 29.99€
Rating 7.8
Release 15 Oct 2018

G2 Fighter / 基因特工

G2 FIGHTER is a Low Poly, third-person ARPG. Gameplay includes not only fast-paced shooting, but also role play, team fight, base construction and so many other elements. Step on unknown journey with Bern Pierron to seek for the truth of this chaos world.

Price -34% 8.75€
Rating 7.7
Release 12 Oct 2018

Farm Together

Grow your own farm all by yourself, or cooperate with your friends in this unique, relaxing farming experience!

Price -73% 5.37€
Rating 9.2
Release 11 Oct 2018

Capcom Beat 'Em Up Bundle

Relive the glory days of cooperative arcade games with the Capcom Beat 'Em Up Bundle! This comprehensive collection includes seven classic titles, each with various multiplayer options and online capabilities!

Price -84% 3.18€
Rating 8.3
Release 10 Oct 2018

CityBattle | Virtual Earth

CityBattle - Thousands of cities fighting for dominance. Join the army of your Virtual City in the MMO F2P shooter using Unreal Engine 4.

Price Free to play
Rating 6.5
Release 02 Oct 2018

I am not a Monster: First Contact

Retro sci-fi tactical turn-based strategy with an exciting storyline. The Albatross space liner is overrun by lizard-like monsters that can infect humans and turn them into their own kind. Save the passengers and defeat the hostile creatures.

Price -91% 1.00€
Rating 7.4
Release 27 Sep 2018

Niffelheim

Your avatar is a brave warrior who has fallen in battle. But instead of well-deserved peace in Asgard, his soul is trapped in the harsh world of Niffelheim. Survive in this hostile world, ransack the neighbor lands, explore dangerous dungeons and find your way to Valhalla

Price 19.50€
Rating 6.9
Release 26 Sep 2018

Timespinner

Travel back in time to change fate itself, in this beautifully crafted story-driven adventure, inspired by classic 90s action-platformers. Join timekeeper Lunais on her quest for revenge against the empire that killed her family, using time-bending powers to explore a vast, connected world.

Price 19.99€
Rating 8.3
Release 25 Sep 2018

Dakar 18

Based on the world famous annual rally raid organized by Amaury Sport Organisation (A.S.O.) in South America, DAKAR 18 is a realistic simulation of the biggest cross-country rally in the world and features a variety of vehicles, including motorcycles, cars, trucks, quads and SSVs.

Price -92% 2.27€
Rating 6.7
Release 25 Sep 2018

Zeal

Zeal is a 3rd person Action RPG focusing on customizable character builds and competitive PvP/PvE without grinding.

Price Free to play
Rating 6.7
Release 24 Sep 2018

Pummel Party

Pummel Party is a 4-8 player online and local-multiplayer party game. Pummel friends or AI using a wide array of absurd items in the board mode and compete to destroy friendships in the unique collection of minigames.

Price 14.79€
Rating 8.7
Release 20 Sep 2018

Cube Escape: Paradox

The tenth Cube Escape follows the story of detective Dale Vandermeer who finds himself trapped in two different universes and needs to escape. Cube Escape: Paradox will be released together with the accompanying Paradox: A Rusty Lake Film.

Price Free to play
Rating 9.4
Release 20 Sep 2018

Fishing Sim World®: Pro Tour

Fishing Sim World: Pro Tour features an authentic career mode where you work your way up to an elite angler competing against over 100 of the best anglers in the world across Bass, Carp and Predator fishing whilst unlocking sponsorship opportunities, gaining career earnings and social media followers as you go.

Price 19.99€
Rating 7.6
Release 18 Sep 2018

Disneyland Adventures

Disneyland Adventures allows fans of all ages to explore Disneyland park, enjoy adventures based on 18 popular attractions, engage in 100 challenging quests, and interact with 35 beloved characters. Disneyland Adventures is your ticket to the magical world of Disneyland right in your living room.

Price -70% 5.06€
Rating 8.5
Release 14 Sep 2018

BLACK CLOVER: QUARTET KNIGHTS

Take part in 4-on-4 team battles and cast an array of magic spells to defeat the opposing team! You can assume one of four roles. Use your role and spells to the best possible effect, and cooperate with your teammates to win the battle!

Price -92% 3.77€
Rating 7.2
Release 13 Sep 2018

Boundless

Shape your citizen, forge your destiny and sculpt your world in this epic voxel sandbox MMO built on endless possibility.

Price -76% 4.66€
Rating 6.8
Release 11 Sep 2018

Door Kickers: Action Squad

Rescue hostages, disarm bombs and save the day in this old school, side-scroller action game with retro graphics and retro sensibilities. Online and Couch Coop Included.

Price 11.99€
Rating 9.2
Release 10 Sep 2018

Ninjin: Clash of Carrots

Ninjin: Clash of Carrots is an anime-inspired beat-em-up with varied enemies and deep customization. Play as the rabbit Ninjin, or Akai, the ninja fox, and fight to retrieve the carrots stolen by Shogun Moe! Redeem carrots for weapons, upgrades and more! Supports 2-player online or local co-op.

Price 9.99€
Rating 8.5
Release 04 Sep 2018

The Goatman

The Goatman is an Online CO-OP hunting game. It all began on February 23, 2019 with a call for help from the Greenfield village. It was alleged that a mysterious creature like a half goat and half demon attacked people and animals. Upon this call, a military research team set out.

Price 3.99€
Rating 6.4
Release 03 Sep 2018

Runes of Magic

Start your heroic saga today in a world full of magic and excitement: Choose your race, build a home and discover the fantastic world of Taborea in the classic free-to-play MMO!

Price Free to play
Rating 6.6
Release 29 Aug 2018

Strange Brigade

Embark on an exotic journey into danger in this rip-roaring 1930s third person adventure for 1-4 players! Encounter pulse-pounding action, treacherous traps and tales of derring-do!

Price 49.99€
Rating 8.2
Release 27 Aug 2018

Guacamelee! 2

Head back to the Mexiverse in this long-awaited sequel to the smash hit Guacamelee! Uppercut your way to victory across stunning new hand-crafted levels. Featuring a dense and colorful world, new luchador moves, sassy new bosses, twice the enemies, and 300% more chickens!

Price 19.50€
Rating 8.7
Release 21 Aug 2018

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 19th 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 137,767 reviews of which 135,794 were positive and 1,973 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 204,837 peak concurrent players over the last day.
9.7
135,794
1,973

204,837
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 105,828 reviews of which 102,099 were positive and 3,729 were negative resulting in an impressive rating of 9.5 out of 10. While seeing 113,966 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
102,099
3,729

113,966
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 788,584 reviews of which 623,141 were positive and 165,443 were negative resulting in a rating of 7.9 out of 10. While seeing 41,617 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
623,141
165,443

41,617
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 952,732 reviews of which 929,269 were positive and 23,463 were negative resulting in an impressive rating of 9.7 out of 10. With 28,692 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played co-op games.
9.7
929,269
23,463

28,692
players

5. PAYDAY 2

PAYDAY 2 is an action-packed, four-player co-op shooter that once again lets gamers don the masks of the original PAYDAY crew - Dallas, Hoxton, Wolf and Chains - as they descend on Washington DC for an epic crime spree. PAYDAY 2 is a co-op, action and fps game developed by OVERKILL - a Starbreeze Studio. and published by Starbreeze Publishing AB. Released on August 13th 2013 has received 662,674 reviews of which 593,923 were positive and 68,751 were negative resulting in a rating of 8.9 out of 10. With 22,417 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played co-op games.
8.9
593,923
68,751

22,417
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 762,073 reviews of which 730,347 were positive and 31,726 were negative resulting in an impressive rating of 9.5 out of 10. With 19,764 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played co-op games.
9.5
730,347
31,726

19,764
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 494,883 reviews of which 471,668 were positive and 23,215 were negative resulting in an impressive rating of 9.4 out of 10. With 15,221 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played co-op games.
9.4
471,668
23,215

15,221
players

8. 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 third-person shooter game developed by Saber Interactive and published by Focus Entertainment. Released on September 09th 2024 has received 157,413 reviews of which 130,499 were positive and 26,914 were negative resulting in a rating of 8.2 out of 10. With 13,827 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played co-op games.
8.2
130,499
26,914

13,827
players

9. 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 248,117 reviews of which 217,551 were positive and 30,566 were negative resulting in a rating of 8.7 out of 10. With 12,018 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played co-op games.
8.7
217,551
30,566

12,018
players

10. Split Fiction

Embrace mind-blowing moments as you’re pulled deep into the many worlds of Split Fiction, a boundary-pushing co-op adventure. Split Fiction is a co-op, split screen and female protagonist game developed by Hazelight Studios and published by Electronic Arts. Released on March 06th 2025 has received 66,609 reviews of which 65,171 were positive and 1,438 were negative resulting in an impressive rating of 9.6 out of 10. With 8,780 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played co-op games.
9.6
65,171
1,438

8,780
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 19th 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 22,668 reviews of which 16,799 were positive and 5,869 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
16,799
5,869

-97% 34.00€ 1.02€

2. Warhammer: End Times - Vermintide

Vermintide is an epic co-operative action combat adventure set in the End Times of the iconic Warhammer Fantasy world. Warhammer: End Times - Vermintide is a action, online co-op and co-op game developed and published by Fatshark. Released on October 23rd 2015 has received 21,040 reviews of which 16,839 were positive and 4,201 were negative resulting in a rating of 7.9 out of 10. Thanks to its incredible 95% discount, this game is now the #2 best deal in co-op games.
7.9
16,839
4,201

-95% 29.20€ 1.46€

3. 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 published by PQube. Released on September 01st 2021 has received 1,497 reviews of which 1,079 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 #3 best deal in co-op games.
7.0
1,079
418

-95% 20.40€ 1.02€

4. This Means Warp

It’s co-op space survival fun, Jim, but not as we know it. This Means Warp is an intense spaceship management roguelite experience for 1-4 players. Explore a procedurally generated universe, upgrade your ship, battle dangerous enemies and adapt your strategies to survive in a hostile galaxy. This Means Warp is a survival, online co-op and space game developed by Outlier and published by Jagex Ltd. Released on May 04th 2023 has received 619 reviews of which 445 were positive and 174 were negative resulting in a rating of 6.9 out of 10. Currently offered at a significant 95% discount, this title has earned the #4 position in the best deals for co-op games.
6.9
445
174

-95% 20.00€ 1.00€

5. 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 1,085 reviews of which 889 were positive and 196 were negative resulting in a rating of 7.8 out of 10. Currently offered at a significant 94% discount, this title has earned the #5 position in the best deals for co-op games.
7.8
889
196

-94% 20.00€ 1.20€

6. 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 13,203 reviews of which 11,784 were positive and 1,419 were negative resulting in a rating of 8.7 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.
8.7
11,784
1,419

-93% 28.14€ 1.97€

7. 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 41,144 reviews of which 33,531 were positive and 7,613 were negative resulting in a rating of 8.0 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.
8.0
33,531
7,613

-93% 41.86€ 2.93€

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 3,969 reviews of which 3,140 were positive and 829 were negative resulting in a rating of 7.7 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.
7.7
3,140
829

-93% 14.71€ 1.03€

9. The Blackout Club

The Blackout Club is a first-person co-op horror game centered around a group of teenage friends investigating a monstrous secret beneath the skin of their small town. 1-4 players explore procedurally-generated missions against a fearsome enemy you can only see with your eyes closed. The Blackout Club is a horror, indie and co-op game developed and published by Question. Released on July 29th 2019 has received 2,828 reviews of which 2,202 were positive and 626 were negative resulting in a rating of 7.5 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.
7.5
2,202
626

-93% 30.43€ 2.13€

10. How 2 Escape

How 2 Escape is an escape-simulation game where two players will need to cooperate on asymmetrical gameplay and devices. "Talk together. Help each other." will be your new motto to survive in How 2 Escape. How 2 Escape is a puzzle, co-op and multiplayer game developed by Breakfirst Games and published by Maximum Entertainment. Released on August 31st 2023 has received 615 reviews of which 453 were positive and 162 were negative resulting in a rating of 7.0 out of 10. Currently offered at a significant 93% discount, this title has earned the #10 position in the best deals for co-op games.
7.0
453
162

-93% 15.43€ 1.08€

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 19th 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 co-op game developed and published by Wargaming Group Limited. Released on November 15th 2017 has received 145,891 reviews of which 112,550 were positive and 33,341 were negative resulting in a rating of 7.6 out of 10. With 4,553 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
112,550
33,341

4,553
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 211,312 reviews of which 193,314 were positive and 17,998 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 3,091, this co-op game has secured the #2 spot in the ranking of free co-op games on Steam.
9.0
193,314
17,998

3,091
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 37,077 reviews of which 33,912 were positive and 3,165 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 1,152, this co-op game has secured the #3 spot in the ranking of free co-op games on Steam.
9.0
33,912
3,165

1,152
players

4. 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 27,827 reviews of which 25,659 were positive and 2,168 were negative resulting in an impressive rating of 9.0 out of 10. Attracting a solid base of 412 players due to its free access, this strategy game has achieved the #4 position in the best free co-op games on Steam.
9.0
25,659
2,168

412
players

5. 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 20,262 reviews of which 15,484 were positive and 4,778 were negative resulting in a rating of 7.5 out of 10. Attracting a solid base of 390 players due to its free access, this strategy game has achieved the #5 position in the best free co-op games on Steam.
7.5
15,484
4,778

390
players

6. 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 117,993 reviews of which 90,334 were positive and 27,659 were negative resulting in a rating of 7.6 out of 10. Attracting a solid base of 385 players due to its free access, this strategy game has achieved the #6 position in the best free co-op games on Steam.
7.6
90,334
27,659

385
players

7. 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 31,184 reviews of which 29,189 were positive and 1,995 were negative resulting in an impressive rating of 9.2 out of 10. Attracting a solid base of 259 players due to its free access, this strategy game has achieved the #7 position in the best free co-op games on Steam.
9.2
29,189
1,995

259
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 29,652 reviews of which 26,762 were positive and 2,890 were negative resulting in a rating of 8.8 out of 10. Attracting a solid base of 243 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
26,762
2,890

243
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 579 reviews of which 405 were positive and 174 were negative resulting in a rating of 6.7 out of 10. Attracting a solid base of 171 players due to its free access, this strategy game has achieved the #9 position in the best free co-op games on Steam.
6.7
405
174

171
players

10. SAS: Zombie Assault 4

Purge the undead! Intense action-shooter with deep rpg elements, including upgradeable guns and armor, unique class skills, and class special abilities. Entire game can be played single player or as a 4-player online co-op game, including PvP events like Last Man Standing. SAS: Zombie Assault 4 is a free to play, zombies and multiplayer game developed and published by Ninja Kiwi. Released on October 16th 2017 has received 9,011 reviews of which 7,770 were positive and 1,241 were negative resulting in a rating of 8.4 out of 10. Attracting a solid base of 141 players due to its free access, this strategy game has achieved the #10 position in the best free co-op games on Steam.
8.4
7,770
1,241

141
players