Best Co-op Games on Steam
Steam currently has 10,614 Co-op games available to download and play. Explore our list of the best picks ranked by Player Score. Our Player Score rankings are calculated directly from reviews left on the Steam store and will be updated in real-time as more players leave their feedback. Co-op game rankings were last updated on 2/12/2026.
Looking for more? Explore other lists such as:
- Free co-op games on Steam
- Best co-op Steam Deck games
- Best co-op Linux games on Steam
- Best co-op Steam games for Mac OS
- Free Steam games
- Most played Steam games
- Best rated Steam games
1. Portal 2
The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!
Portal 2 holds the #1 spot for "best Co-op game on Steam" with a Player Score of 98. Its score was calculated by analyzing a total of 454,221 reviews on Steam. This breaks down to a total of 448,334 positive reviews and 5,887 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $9.99 to play and can be played and ran on both Windows and Linux systems. Valve has also verified it as playable on the Steam Deck and will run well.
2. 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 has achieved a Player Score of 97, placing it in the #2 spot for the best Co-op games. Its score was calculated by analyzing a total of 279,246 reviews on Steam. This breaks down to a total of 273,502 positive reviews and 5,744 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $19.99 to play and can be played and ran on Windows systems. At the moment, it is possible to play Schedule I on the Steam Deck (though some functionality may be limited).
3. 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 has achieved a Player Score of 97, placing it in the #3 spot for the best Co-op games. Its score was calculated by analyzing a total of 1,017,894 reviews on Steam. This breaks down to a total of 992,781 positive reviews and 25,113 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $9.99 to play and can be played and ran on both Windows and Linux systems. Valve has also verified it as playable on the Steam Deck and will run well.
4. Terraria
Dig, fight, explore, build! Nothing is impossible in this action-packed adventure game. Four Pack also available!
Terraria has achieved a Player Score of 97, placing it in the #4 spot for the best Co-op games. Its score was calculated by analyzing a total of 1,498,721 reviews on Steam. This breaks down to a total of 1,459,859 positive reviews and 38,862 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $9.99 to play and can be played and ran on Windows, Mac, and Linux systems. Valve has also verified it as playable on the Steam Deck and will run well.
5. Factorio
Factorio is a game about building and creating automated factories to produce items of increasing complexity, within an infinite 2D world. Use your imagination to design your factory, combine simple elements into ingenious structures, and finally protect it from the creatures who don't really like you.
Factorio has achieved a Player Score of 96, placing it in the #5 spot for the best Co-op games. Its score was calculated by analyzing a total of 225,387 reviews on Steam. This breaks down to a total of 219,708 positive reviews and 5,679 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $35.00 to play and can be played and ran on Windows, Mac, and Linux systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Steam Price | $35.00 |
| Release Date | 8/14/2020 |
| Developer | Wube Software LTD. |
| Publisher | Wube Software LTD. |
| Steam App Id | 427520 |
6. The Binding of Isaac: Rebirth
The Binding of Isaac: Rebirth is a randomly generated action RPG shooter with heavy Rogue-like elements. Following Isaac on his journey players will find bizarre treasures that change Isaac’s form giving him super human abilities and enabling him to fight off droves of mysterious creatures, discover secrets and fight his way to safety.
The Binding of Isaac: Rebirth has achieved a Player Score of 96, placing it in the #6 spot for the best Co-op games. Its score was calculated by analyzing a total of 381,791 reviews on Steam. This breaks down to a total of 371,252 positive reviews and 10,539 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $14.99 to play and can be played and ran on Windows, Mac, and Linux systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Steam Price | $14.99 |
| Release Date | 11/4/2014 |
| Developers | |
| Publisher | Nicalis, Inc. |
| Steam App Id | 250900 |
7. Bloons TD 6
The Bloons are back and better than ever! Get ready for a massive 3D tower defense game designed to give you hours and hours of the best strategy gaming available.
Bloons TD 6 has achieved a Player Score of 96, placing it in the #7 spot for the best Co-op games. Its score was calculated by analyzing a total of 379,827 reviews on Steam. This breaks down to a total of 369,278 positive reviews and 10,549 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $13.99 to play and can be played and ran on both Windows and Mac systems. At the moment, it is possible to play Bloons TD 6 on the Steam Deck (though some functionality may be limited).
| Steam Price | $13.99 |
| Release Date | 12/18/2018 |
| Franchise | Ninja Kiwi Games |
| Developer | Ninja Kiwi |
| Publisher | Ninja Kiwi |
| Steam App Id | 960090 |
8. Deep Rock Galactic
Deep Rock Galactic is a 1-4 player co-op FPS featuring dwarven space miners, procedurally-generated destructible environments, and endless hordes of alien monsters. Explore cave systems, mine for minerals, and work together to survive!
Deep Rock Galactic has achieved a Player Score of 96, placing it in the #8 spot for the best Co-op games. Its score was calculated by analyzing a total of 370,004 reviews on Steam. This breaks down to a total of 359,640 positive reviews and 10,364 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $29.99 to play and can be played and ran on Windows systems. At the moment, it is possible to play Deep Rock Galactic on the Steam Deck (though some functionality may be limited).
| Steam Price | $29.99 |
| Release Date | 5/13/2020 |
| Franchise | Coffee Stain |
| Developer | Ghost Ship Games |
| Publisher | Coffee Stain Publishing |
| Steam App Id | 548430 |
9. Garry's Mod
Garry's Mod is a physics sandbox. There aren't any predefined aims or goals. We give you the tools and leave you to play.
Garry's Mod has achieved a Player Score of 96, placing it in the #9 spot for the best Co-op games. Its score was calculated by analyzing a total of 1,217,934 reviews on Steam. This breaks down to a total of 1,179,527 positive reviews and 38,407 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $4.99 to play and can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play Garry's Mod on the Steam Deck (though some functionality may be limited).
| Steam Price | $4.99 |
| Release Date | 11/29/2006 |
| Developer | Facepunch Studios |
| Publisher | Valve |
| Steam App Id | 4000 |
10. Lethal Company
A co-op horror about scavenging at abandoned moons to sell scrap to the Company.
Lethal Company has achieved a Player Score of 96, placing it in the #10 spot for the best Co-op games. Its score was calculated by analyzing a total of 502,334 reviews on Steam. This breaks down to a total of 487,549 positive reviews and 14,785 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $9.99 to play and can be played and ran on Windows systems. At the moment, it is possible to play Lethal Company on the Steam Deck (though some functionality may be limited).
More Co-op Games
Explore even more rankings for the 100 best Co-op games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 1,576 | 4/18/2011 | 98 | $9.99 | Steam Charts | |
| 18,464 | 3/24/2025 | 97 | $19.99 | Steam Charts | |
| 26,750 | 11/16/2009 | 97 | $9.99 | Steam Charts | |
| 67,372 | 5/16/2011 | 97 | $9.99 | Steam Charts | |
| 14,709 | 8/14/2020 | 96 | $35.00 | Steam Charts | |
| 17,989 | 11/4/2014 | 96 | $14.99 | Steam Charts | |
| 10,013 | 12/18/2018 | 96 | $13.99 | Steam Charts | |
| 8,464 | 5/13/2020 | 96 | $29.99 | Steam Charts | |
| 19,501 | 11/29/2006 | 96 | $4.99 | Steam Charts | |
| 4,410 | 10/23/2023 | 96 | $9.99 | Steam Charts | |
 | 16,188 | 9/10/2024 | 96 | $39.99 | Steam Charts | |
 | 38,491 | 5/16/2020 | 96 | Free | Steam Charts | |
 | 171 | 10/5/2017 | 96 | $29.99 | Steam Charts | |
 | 126 | 12/6/2025 | 96 | $19.99 | Steam Charts | |
 | 313 | 10/11/2024 | 96 | $4.99 | Steam Charts | |
 | 2,747 | 3/6/2025 | 96 | $49.99 | Steam Charts | |
 | 77,349 | 3/5/2025 | 96 | Free | Steam Charts | |
 | 1,886 | 5/25/2010 | 96 | $19.99 | Steam Charts | |
 | 1,017 | 4/1/2023 | 96 | $9.99 | Steam Charts | |
 | 105 | 5/15/2014 | 96 | $14.99 | Steam Charts |
Soures & References
Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Reviews and rankings are enriched, analyzed, and updated in real-time to ensure we surface the most up-to-date insights. Learn more about the Steambase approach to data collection and our review methodology.
- Valve Corporation. (2026, February 12). Steam Store. Steam Store.
- Valve Corporation. (2026, February 12). Portal 2 on Steam. Steam Store.
- Valve Corporation. (2026, February 21). Schedule I on Steam. Steam Store.
- Valve Corporation. (2026, February 12). Left 4 Dead 2 on Steam. Steam Store.
- Valve Corporation. (2026, February 18). Terraria on Steam. Steam Store.
- Valve Corporation. (2026, February 12). Factorio on Steam. Steam Store.
- Valve Corporation. (2026, February 17). The Binding of Isaac: Rebirth on Steam. Steam Store.
- Valve Corporation. (2026, February 23). Bloons TD 6 on Steam. Steam Store.
- Valve Corporation. (2026, February 23). Deep Rock Galactic on Steam. Steam Store.
- Valve Corporation. (2026, February 23). Garry's Mod on Steam. Steam Store.
- Valve Corporation. (2026, February 24). Lethal Company on Steam. Steam Store.