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Best Online Co-Op Games

Top 50 of 947 qualifying games — tagged Online Co-Op (community voting), 1,000+ reviews · ranked by Wilson lower bound on Steam review score · review data as of 2026-05-20.

1 WEBFISHING (2024) Fishing · Multiplayer · Casual · 1M–2M owners · $4.99 98.0%65,810 reviews 2 Snail Simulator (2023) Singleplayer · Exploration · Massively Multiplayer · 0–20K owners · $4.99 98.6%1,135 reviews 3 Goat Simulator 3 (2024) Exploration · Physics · Sandbox · 200K–500K owners · $29.99 97.9%10,395 reviews 4 WolfQuest: Anniversary Edition (2025) Early Access · Life Sim · Survival · 200K–500K owners · $29.99 97.9%10,248 reviews 5 Left 4 Dead 2 (2009) Zombies · Co-op · FPS · 50M–100M owners · $9.99 97.5%963,983 reviews 6 Terraria (2011) Open World Survival Craft · Sandbox · Survival · 20M–50M owners · $9.99 97.5%1,409,473 reviews 7 Split Fiction (2025) Co-op · Split Screen · Female Protagonist · 2M–5M owners · $49.99 97.5%81,558 reviews 8 Just Shapes & Beats (2018) Rhythm · Great Soundtrack · Music · 1M–2M owners · $19.99 97.6%22,150 reviews 9 Bloons TD 6 (2018) Tower Defense · Strategy · Multiplayer · 2M–5M owners · $13.99 97.3%353,960 reviews 10 Lethal Company (2023) Online Co-Op · Horror · First-Person · 10M–20M owners · $9.99 97.2%487,160 reviews 11 Echo Point Nova (2024) FPS · Shooter · Online Co-Op · 200K–500K owners · $24.99 97.5%5,810 reviews 12 BattleBlock Theater (2014) Co-op · Platformer · Funny · 2M–5M owners · $14.99 97.2%71,614 reviews 13 Bopl Battle (2023) Multiplayer · 4 Player Local · 2D Fighter · 1M–2M owners · $9.99 97.3%19,125 reviews 14 Wobbly Life (2025) Adventure · Multiplayer · Open World · 1M–2M owners · $24.99 97.0%26,940 reviews 15 Garry's Mod (2006) Sandbox · Moddable · Multiplayer · 20M–50M owners · $9.99 96.8%1,159,707 reviews 16 PowerWash Simulator (2022) Casual · Relaxing · Simulation · 1M–2M owners · $24.99 96.9%52,410 reviews 17 Clone Drone in the Danger Zone (2021) Robots · Action · 3D Fighter · 1M–2M owners · $19.99 96.8%33,067 reviews 18 Supreme Commander: Forged Alliance (2011) Strategy · RTS · Sci-fi · 1M–2M owners · $12.99 96.8%13,468 reviews 19 LEGO Star Wars - The Complete Saga (2009) LEGO · Local Co-Op · Adventure · 1M–2M owners · $19.99 96.7%23,787 reviews 20 Lethal League Blaze (2018) Action · Indie · 2D Fighter · 200K–500K owners · $19.99 96.9%6,409 reviews 21 R.E.P.O. (2025) Horror · Online Co-Op · Multiplayer · 10M–20M owners · $6.99 96.5%185,642 reviews 22 FlyKnight (2025) Dungeon Crawler · First-Person · Souls-like · 200K–500K owners · $5.99 96.7%8,297 reviews 23 Abiotic Factor (2025) Survival · Online Co-Op · Open World Survival Craft · 500K–1M owners · $34.99 96.4%31,274 reviews 24 Monster Prom 2: Monster Camp (2020) Dating Sim · LGBTQ+ · Comedy · 200K–500K owners · $11.99 96.7%5,973 reviews 25 Left 4 Dead (2008) Zombies · Co-op · Multiplayer · 5M–10M owners · $9.99 96.3%61,894 reviews 26 Castle Crashers (2012) 2D · Online Co-Op · Co-op · 5M–10M owners · $14.99 96.1%125,598 reviews 27 The Planet Crafter (2024) Open World Survival Craft · Base-Building · Survival · 1M–2M owners · $23.99 96.0%54,316 reviews 28 OpenTTD (2021) Simulation · Building · Free to Play · 1M–2M owners · Free 96.2%14,394 reviews 29 Streets of Rogue (2019) Rogue-lite · Action Roguelike · Pixel Graphics · 1M–2M owners · $19.99 96.1%21,933 reviews 30 Bang-On Balls: Chronicles (2023) Combat · Co-op · Open World · 200K–500K owners · $24.99 96.4%4,771 reviews 31 Phasmophobia (2020) Horror · Online Co-Op · Multiplayer · 10M–20M owners · $13.99 95.8%768,779 reviews 32 Ultimate Chicken Horse (2016) Multiplayer · Party · Funny · 1M–2M owners · $14.99 95.9%48,300 reviews 33 Saints Row: The Third (2011) Open World · Action · Comedy · 2M–5M owners · $9.99 95.7%68,600 reviews 34 Mindustry (2019) Base-Building · Resource Management · Tower Defense · 1M–2M owners · $9.99 95.8%22,266 reviews 35 Trine Enchanted Edition (2009) Puzzle-Platformer · Beautiful · Fantasy · 2M–5M owners · $14.99 95.8%15,345 reviews 36 Don't Starve Together (2016) Survival · Open World Survival Craft · Multiplayer · 10M–20M owners · $14.99 95.3%499,061 reviews 37 Blood Fresh Supply (2019) FPS · Shooter · 2.5D · 500K–1M owners · $9.99 95.7%7,080 reviews 38 It Takes Two (2021) Co-op · Multiplayer · Split Screen · 5M–10M owners · $39.99 95.3%218,383 reviews 39 CarX Drift Racing Online (2017) Racing · Physics · Simulation · 2M–5M owners · $16.99 95.3%83,416 reviews 40 Roboquest (2023) FPS · Action Roguelike · Rogue-lite · 500K–1M owners · $24.99 95.4%21,689 reviews 41 Dying Light (2015) Zombies · Survival Horror · Horror · 10M–20M owners · $24.99 95.2%457,632 reviews 42 Trine 2: Complete Story (2013) Puzzle-Platformer · Platformer · Adventure · 2M–5M owners · $19.99 95.4%21,679 reviews 43 Shipwrecked 64 (2024) Horror · Puzzle · Exploration · 200K–500K owners · $7.99 96.1%1,899 reviews 44 Charlie Murder (2017) Action · Beat 'em up · Indie · 100K–200K owners · $9.99 95.6%2,413 reviews 45 Supermarket Together (2024) Simulation · Online Co-Op · Multiplayer · 2M–5M owners · Free 94.9%67,435 reviews 46 Killing Floor (2009) FPS · Zombies · Co-op · 2M–5M owners · $19.99 94.9%67,472 reviews 47 Content Warning (2024) Online Co-Op · Horror · Multiplayer · 5M–10M owners · $7.99 94.8%145,091 reviews 48 Cosmoteer: Starship Architect & Commander (2022) Sci-fi · Singleplayer · 2D · 500K–1M owners · $19.99 95.0%11,171 reviews 49 PlateUp! (2022) Co-op · Management · Cooking · 1M–2M owners · $4.99 94.9%23,401 reviews 50 EARTH DEFENSE FORCE 4.1 The Shadow of New Despair (2016) Action · Third-Person Shooter · Co-op · 1M–2M owners · $19.99 95.0%10,054 reviews