Operation is a zombie horror action game where players enter a sealed operation zone, fight infected enemies, complete mission objectives, and survive with teammates in a dark and dangerous environment.
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No game lists operation as one of its co-op favourites yet, so here are the closest matches by Steam tags instead.
Lead your elite squad in a high-intensity tactical battle for containment. Coordinate firepower, suppress hostile bandit gangs, and hold the line against massive swarms of infected.
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A survivor-like action survival game centered on 3D movement, dodging, and co-op horde clearing. Upgrade skills, craft your build, strengthen your gear, carve through enemy waves, and take down bosses.
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Shoot, hack and grind your way through waves of sentient office appliances in Megabonk-like roguelite action. Level up, unlock upgrades and play in singleplayer or up to 4-player coop while 360 no-scoping on an office chair!
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Space Show is an explosive space shoot’em up blending fast-paced arcade action with roguelite progression. Destroy waves of asteroids, battle enemy fleets, and defend Earth in an endless war where only survival… and glory matter!
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Survivors-like with ONLINE CO-OP for 1-4 players. Team up with your wizard friends to slay hordes of dark creatures. Complete team-based objectives, unlock new upgrades and create overpowered spell synergies. Friend nor foe is safe in this friendly fire bullet hell!
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The Last Camp is a post-apocalyptic world-themed game. It utilizes high-quality graphics, a rich weapon and item system, and a vast world map to create a cross-generational twin-stick shooter, bringing a feast to hardcore shooter players.
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Resurrection is a wave-based indie FPS by Bad Dev Studios. Fight endless, aggressive zombie hordes in a burning city. spend points at the random weapon box for better firearms, manage your ammo, and use precision sniping to survive increasingly difficult waves.
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Prepare to face the relentless onslaught of the undead! Clear the undead realm either solo or with up to 2 friends in online multiplayer. Choose powerful abilities to vanquish hordes of undead. Upgrade stats and unlock new heroes as you strive for survival in this intense roguelite bullet hell.
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A co-op PvE survival game where you team up with other survivors to scavenge resources, fight infected enemies, uncover the map, and reach the final extraction point.
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The Horde Wants You Dead is a casual, top-down shooter with up to 4-player online co-op. Ambushed by an angry horde, you and your friends face a fight for survival against thousands of relentless enemies!
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