Top 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 August 31st 2025. Looking for even more deals? Explore the complete list of the top deals on online co-op games.

Lists & Categories

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 game developed and published by . 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€ 0.45€

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 game developed and published by . 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€ 0.23€

3. Gotham Knights

Batman is dead. It is now up to the Batman Family - Batgirl, Nightwing, Red Hood, and Robin - to protect Gotham City. Gotham Knights is a game developed and published by . Released on October 21st 2022 has received 22,666 reviews of which 15,271 were positive and 7,395 were negative resulting in a rating of 6.7 out of 10. Thanks to its incredible 99% discount, this game is now the #3 best deal in online co-op games.
6.7
15,271
7,395

-99% 59.99€ 0.55€

4. 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 game developed and published by . 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 99% discount, this title has earned the #4 position in the best deals for online co-op games.
6.6
1,277
607

-99% 14.99€ 0.27€

5. Suicide Squad: Kill the Justice League

From the creators of Batman: Arkham, Suicide Squad: Kill the Justice League is a genre-defying third-person action shooter where the ultimate band of misfits must do the impossible: Kill the Justice League. Suicide Squad: Kill the Justice League is a game developed and published by . Released on February 02nd 2024 has received 14,741 reviews of which 9,370 were positive and 5,371 were negative resulting in a rating of 6.3 out of 10. Currently offered at a significant 99% discount, this title has earned the #5 position in the best deals for online co-op games.
6.3
9,370
5,371

-99% 69.99€ 0.47€

6. Unrailed!

Unrailed! is a co-op multiplayer game where you have to work together with your friends to build a train track across endless procedurally generated worlds. Master random encounters with its inhabitants, upgrade your train and keep it from derailing! Unrailed! is a game developed and published by . Released on September 23rd 2020 has received 18,669 reviews of which 17,426 were positive and 1,243 were negative resulting in an impressive rating of 9.1 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.
9.1
17,426
1,243

-98% 19.99€ 0.58€

7. 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 game developed and published by . 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. Currently offered at a significant 98% discount, this title has earned the #7 position in the best deals for online co-op games.
8.7
11,924
1,455

-98% 29.99€ 0.72€

8. 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 game developed and published by . 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 #8 position in the best deals for online co-op games.
8.7
111,325
15,541

-98% 27.99€ 0.82€

9. 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 game developed and published by . 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 #9 position in the best deals for online co-op games.
8.7
36,581
4,906

-98% 19.99€ 0.47€

10. Fury Unleashed

Shoot your way through the pages of an ever-changing comic book in this fast-paced roguelike. Play solo, in local or online co-op, expand your weaponry, and upgrade your hero with each run. All that to find out why has your creator lost his faith in you and to prove him wrong. Fury Unleashed is a game developed and published by . Released on May 08th 2020 has received 2,651 reviews of which 2,327 were positive and 324 were negative resulting in a rating of 8.4 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.
8.4
2,327
324

-98% 19.50€ 0.57€