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If you want a game to play with friends, then check out this list of the 5 best co-op games to buy during the Steam Summer Sale.
Co-op games are one of the most popular genres right now, thanks to some amazing new releases. These titles largely focus on teamwork, communication, gameplay, and most importantly, having fun with your friends. There are various sub-genres across this category, such as local co-op, online co-op, etc., but most titles often feature both at the same time.
In this article, we have listed our five picks of the best co-op games that you can buy at a discounted price during the Steam Summer Sale 2025.
Top 5 Co-op Games You Can Buy During The Steam Summer Sale
Cooperative games can be quite simple on paper, but many of them feature stories and characters with surprising amounts of depth. Even the core mechanic, which is teamwork, is an essential part of being human. These games aim to bring two or more people together through the magic of video games. Co-op titles can also be a great way to bond with someone and have a fun few hours without the hassle of learning complex mechanics.
So, below we have listed the best 5 co-op games you can get during this year’s Steam Summer Sale to enjoy with your buddies.
5. Valheim
- Developer: Iron Gate AB
- Publisher: Coffee Stain Publishing
- Genre: Sandbox, Survival, Online Co-op
- Discount: 50% Off
Valheim might not be a classic co-op game, but it is still a great time with friends. In this survival RPG, you will be dropped into a Norse purgatory alongside your fallen warrior comrades. There, you must gather resources, craft equipment, build bases, explore new lands, and take on various bosses and enemies across multiple regions in the game.
However, keep in mind that the game is still in early access and has yet to see a full release. So, if you want to try Valheim, you can buy the game with a 50% discount on Steam.
4. Helldivers 2
- Developer: Arrowhead Games Studios
- Publisher: PlayStation Publishing LLC
- Genre: Third Person Shooter, PvE, Online Co-op
- Discount: 20% Off
Arrowhead Studios’ Helldivers 2 was released on February 8, 2024, and quickly became one of the most-played co-op titles of the year. The title still has a stable player base in 2025, and with lots of new updates and expansions, alongside an Xbox release in August, the numbers might increase even more.
In the game, you will join the fight for democracy alongside your friends or other players online and fight various aliens, robots, and other science fiction-inspired creatures to protect your home and spread peace through bullets and artillery fire. You can buy Helldivers 2 with a 20% discount on Steam.
3. A Way Out
- Developer: Hazelight Studios
- Publishing: Electronic Arts
- Genre: Co-op, Split Screen, Story Rich
- Discount: 80% Off
Unlike the previous two entries in this list, Hazelight Studios’ A Way Out is a two-player-focused co-op title that offers a cinematic and narrative-driven experience with well-written characters and drama. Since the game launched on March 23, 2018, it has remained one of the most recognized titles and a staple in the genre. In the game, you and your friend will get to play as the two main leads, Vincent and Leo.
Your primary task will be to complete various puzzles, survive combat encounters, and escape from prison using teamwork and cooperation. This co-op game also features a great story with twists and many tough decisions that you will have to make. As of now, A Way Out is available on Steam with an 80% discount.
2. Warhammer 40,000 Space Marine 2
- Developer: Saber Interactive
- Publisher: Focus Entertainment
- Genre: Action, Co-op, Warhammer 40k
- Discount: 40% Off
If you have spent enough time on the internet, then you have come across Warhammer at least once. It is undoubtedly one of the biggest franchises that exists across multiple media, such as video games, TV shows, and novels. Saber Interactive’s Warhammer 40,000 Space Marine 2 is a third-person co-op shooter that follows Titus, one of the Ultramarines.
During the events of the game, you and three of your friends must stop a Tyranid invasion and fight against various enemies from the Chaos Realm. The title features gun-based gameplay mixed with hack-and-slash elements. Apart from the three-player campaign, it also features a 6v6 multiplayer mode. Lastly, Warhammer 40,000 Space Marine 2 has a 40% discount on Steam during this year’s Summer Sale.
1. It Takes Two
- Developer: Hazelight Studios
- Publishing: Electronic Arts
- Genre: Co-op, Split Screen, Local Co-op
- Discount: 75% Off
Similar to A Way Out, Hazelight Studios’ It Takes Two is also a two-player-only co-op title that has a distinctive art style and focuses on gameplay, narrative, and coordination. In the game, you and your buddy will take control of two people on the brink of divorce, named Cody and May. Their daughter turns them into dolls, and they must complete various levels with teamwork to solve puzzles, navigate platforming segments, and face combat encounters.
In addition, each character has their own unique abilities, adding another dynamic layer to the cooperative gameplay. The game also supports split-screen and a Friend Pass, so you can easily share this experience with anyone without having to buy two copies. If that sounds appealing, you can grab It Takes Two from Steam with a 75% discount.
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