PC has the deepest co-op catalog of any platform, from couch-friendly puzzle adventures to squad-based shooters and sprawling sandboxes built for friends. Dedicated servers, mod support and easy drop-in lobbies mean a good co-op game can stay in rotation for years. Whether you are after two-player couch co-op or coop games for a whole squad, the picks below cover the genres where playing together matters most, with one honest drawback noted for each.
1. It Takes Two#
Hazelight Studios released It Takes Two in March 2021 as a co-op-only adventure about a couple turned into dolls by their daughter's wish. Every level hands the two players different tools and a fresh mechanic, from time manipulation to gravity boots, so the game never settles into one loop. It is inventive, funny and full of small surprises. The story is sentimental and the writing uneven, and because it requires a second player, it is not for anyone who wants to play alone.
2. Portal 2#
Valve's Portal 2 arrived in April 2011 with a separate co-op campaign starring two robots, Atlas and P-Body, each with their own portal gun. Test chambers demand real communication, since one player's portal is only useful when the partner places theirs in the right spot. The puzzles are clever, and the humor carries over from the single-player game. The co-op campaign is fairly short, and it suits a partner who enjoys thinking rather than racing.
3. Deep Rock Galactic#
Ghost Ship Games released Deep Rock Galactic 1.0 in 2020 (after early access) as a four-player co-op shooter where dwarven miners dig through procedurally generated caves and fight off alien bugs. Four distinct classes (Driller, Gunner, Engineer and Scout) make teamwork matter, and the destructible terrain keeps every mission different. Its community is famously friendly. Missions can begin to repeat after dozens of hours, and solo play, while possible, loses most of the appeal.
4. Left 4 Dead 2#
Valve's Left 4 Dead 2 (November 2009) drops four survivors into zombie-filled campaigns with an AI Director that changes enemy placement and pacing on every run. Special infected such as the Charger, Spitter and Jockey force players to cover each other constantly. Versus mode and a steady stream of community campaigns extend its life well beyond the official content. It looks dated, but it is still one of the best pure co-op shooters.
5. Split Fiction#
Hazelight's Split Fiction, released in March 2025, follows two writers trapped inside their own stories, which switch between science fiction and fantasy worlds. Like the studio's earlier games, it requires two players and builds levels around constantly changing mechanics, with many set pieces and boss fights. It is polished and often dazzling to look at. The plot is less memorable than the gameplay, and it is a story you finish rather than return to.
6. Divinity: Original Sin II#
Larian Studios released Divinity: Original Sin II in September 2017, a turn-based role-playing game with up to four players in co-op. Systems overlap in clever ways, so electrifying a puddle or setting oil on fire can decide a fight. Each character has a distinct origin story, and partners can disagree on how to proceed. The combat is demanding and the early hours can be punishing, and the campaign is long enough that a steady partner matters.
7. Terraria#
Re-Logic released Terraria in May 2011, a 2D sandbox that combines mining, building, exploration and boss fights. Friends can share a world, construct a base together and take on bosses in escalating tiers. Years of free updates have turned it into a huge game. The early game offers little guidance, and players who want a clear structure will end up reading a wiki.
8. Risk of Rain 2#
Hopoo Games released Risk of Rain 2 in full on PC in August 2020 after a stretch in early access, turning the original 2D roguelike into a third-person shooter for up to four players. Hundreds of stacking items create absurd builds, and every stage grows more chaotic as the clock ticks. Co-op amplifies the fun, since a team's item combinations compound. The action can get messy and hard to read when many enemies and effects fill the screen.
9. Helldivers 2#
Arrowhead Game Studios launched Helldivers 2 in February 2024, a four-player third-person shooter where squads of soldiers fight bugs and robots in the name of managed democracy. Friendly fire is always on, stratagems are called in with button sequences, and mistakes create comedy as often as disaster. It works best with friends who can coordinate. The difficulty can frustrate random groups of strangers.
10. Borderlands 2#
Gearbox Software released Borderlands 2 in September 2012, a shooter-looter with a cel-shaded look, four classes and a campaign built around the villain Handsome Jack. Co-op for up to four players multiplies the loot, the class synergies and the jokes. It is sharply written and has plenty of content through its expansions. Enemy scaling can make mixed-level parties awkward, and the driving sections are weaker than the gunplay.
11. Overcooked! 2#
Ghost Town Games and Team17 released Overcooked! 2 in August 2018, a cooking game where up to four players chop, cook and deliver meals in kitchens that keep changing, moving or catching fire. It supports local and online play and rewards loud, constant communication. Short levels make it ideal for a game night. The fun depends heavily on the group, and the later stages can be more stressful than relaxing.
12. Stardew Valley#
ConcernedApe released Stardew Valley in February 2016, a farming and life simulator that later added online co-op (up to eight players on PC). Friends can share a farm, split chores, mine together and watch the seasons pass. The pace is calm, the pixel art is charming and there is a huge amount to do. Co-op is less structured than the solo game, and the slow rhythm will bore anyone who wants constant action.
13. Monster Hunter: World#
Capcom released Monster Hunter: World on PC in August 2018, after its console debut in January. Up to four hunters track enormous monsters through living ecosystems and craft new gear from the parts they collect. Weapon types play very differently, and hunts become cooperative puzzles as players trade roles and support each other. The learning curve is steep, and menus and systems can feel dense to newcomers.
14. A Way Out#
Hazelight Studios released A Way Out in March 2018, a co-op-only action adventure in which two prisoners plan a breakout and then run from the law. Split-screen is used to cinematic effect, and the game can be played with a friend locally or online. The story is tense, but the ending is divisive and the writing uneven. It is short, and works best as a shared evening or two.
15. Castle Crashers#
The Behemoth's Castle Crashers, which reached PC in 2012 after its 2008 debut, is a hand-drawn beat-em-up for up to four players. Knights fight through levels, unlock weapons and pets and level up their stats, all with a slapstick sense of humor. It is best on a couch or with online friends. The combat is simple, and solo play feels thin next to the multiplayer experience.
16. Keep Talking and Nobody Explodes#
Steel Crate Games released Keep Talking and Nobody Explodes in 2015, an asymmetric party game where one player defuses a bomb while the others read a manual to explain how. Modules range from wires to strange symbols, and communication breaks down in very funny ways. It is easy to learn and perfect for groups. Once the manual is familiar, the challenge fades, so it suits newcomers best.