Best Co-op Games on Steam
Steam currently has 10,691 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 3/5/2026.
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 454,979 reviews on Steam. This breaks down to a total of 449,085 positive reviews and 5,894 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 282,419 reviews on Steam. This breaks down to a total of 276,569 positive reviews and 5,850 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 is a 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 1,020,201 reviews on Steam. This breaks down to a total of 995,029 positive reviews and 25,172 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 1,504,494 reviews on Steam. This breaks down to a total of 1,465,421 positive reviews and 39,073 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 226,044 reviews on Steam. This breaks down to a total of 220,359 positive reviews and 5,685 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 383,421 reviews on Steam. This breaks down to a total of 372,832 positive reviews and 10,589 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 380,598 reviews on Steam. This breaks down to a total of 370,021 positive reviews and 10,577 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 370,581 reviews on Steam. This breaks down to a total of 360,192 positive reviews and 10,389 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $8.99 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 | $8.99 |
| 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 1,221,224 reviews on Steam. This breaks down to a total of 1,182,731 positive reviews and 38,493 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. At the moment, it is possible to play Garry's Mod on the Steam Deck (though some functionality may be limited).
| Steam Price | $9.99 |
| 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 503,028 reviews on Steam. This breaks down to a total of 488,183 positive reviews and 14,845 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 | ||||
|---|---|---|---|---|---|---|
| 1,906 | 4/18/2011 | 98 | $9.99 | Steam Charts | |
| 16,443 | 3/24/2025 | 97 | $19.99 | Steam Charts | |
| 18,132 | 11/16/2009 | 97 | $9.99 | Steam Charts | |
| 47,603 | 5/16/2011 | 97 | $9.99 | Steam Charts | |
| 19,578 | 8/14/2020 | 96 | $35.00 | Steam Charts | |
| 20,663 | 11/4/2014 | 96 | $14.99 | Steam Charts | |
| 9,010 | 12/18/2018 | 96 | $13.99 | Steam Charts | |
| 12,319 | 5/13/2020 | 96 | $8.99 | Steam Charts | |
| 28,234 | 11/29/2006 | 96 | $9.99 | Steam Charts | |
| 3,249 | 10/23/2023 | 96 | $9.99 | Steam Charts | |
 | 25,735 | 9/10/2024 | 96 | $27.99 | Steam Charts | |
 | 32,687 | 5/16/2020 | 96 | Free | Steam Charts | |
 | 46 | 10/5/2017 | 96 | $29.99 | Steam Charts | |
 | 244 | 12/6/2025 | 96 | $19.99 | Steam Charts | |
 | 221 | 10/11/2024 | 96 | $4.99 | Steam Charts | |
 | 2,993 | 3/6/2025 | 96 | $49.99 | Steam Charts | |
 | 388 | 4/1/2023 | 96 | $9.99 | Steam Charts | |
 | 1,938 | 5/25/2010 | 96 | $19.99 | Steam Charts | |
 | 88 | 5/15/2014 | 96 | $14.99 | Steam Charts | |
 | 81 | 5/31/2018 | 95 | $19.99 | 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, March 5). Steam Store. Steam Store.
- Valve Corporation. (2026, March 5). Portal 2 on Steam. Steam Store.
- Valve Corporation. (2026, March 7). Schedule I on Steam. Steam Store.
- Valve Corporation. (2026, March 5). Left 4 Dead 2 on Steam. Steam Store.
- Valve Corporation. (2026, March 4). Terraria on Steam. Steam Store.
- Valve Corporation. (2026, February 25). Factorio on Steam. Steam Store.
- Valve Corporation. (2026, March 8). The Binding of Isaac: Rebirth on Steam. Steam Store.
- Valve Corporation. (2026, March 9). Bloons TD 6 on Steam. Steam Store.
- Valve Corporation. (2026, March 9). Deep Rock Galactic on Steam. Steam Store.
- Valve Corporation. (2026, March 9). Garry's Mod on Steam. Steam Store.
- Valve Corporation. (2026, March 9). Lethal Company on Steam. Steam Store.