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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No game lists Outbreak Horizon as one of its co-op favourites yet, so here are the closest matches by Steam tags instead.
WASTED Bloodline is a first-person shooter with stunning graphics, singleplayer botmatch mode, online multiplayer, and cooperative play, featuring long-term support.
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Half Alive is a low poly wave-based survival game where every decision matters. Face hordes of zombies solo or in co-op, tackle unique challenges, and customize your arsenal. Fight, adapt, and survive.
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Dead Rush is an FPS arcade shooter that combines fast-paced action, stylized visuals, and relentless waves of zombies. Choose your weapon, fight with friends, and see how long you can survive.
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Call of Duty®: Black Ops 6 is signature Black Ops across a cinematic single-player Campaign, a best-in-class Multiplayer experience and with the epic return of Round-Based Zombies.
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Poly Fire is a tactical multiplayer team 1st person shooter. Using a variety of weapons and characters, you will battle with up to 32 players on Various maps . By managing your skills correctly, you will lead your team to victory.
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One duck, one gun, an endless night. Shred ghost-duck swarms, drag five colossal lords off the horizon one by one, and outlast the dawn into a red sky where the real night begins. A first-person horde shooter from a two-person team — solo, or in 3-player online co-op.
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After sending several probes to a certain planet, all contact was lost, so an exploration team was sent to investigate, but they fell into an unknown struggle.
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L.O.S.T. is a 4-player co-op survival game. Work together, scavenge resources, and do whatever it takes to escape before it’s too late.
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Unit Zero is a first-person multiplayer shooter with realistic bodycam-style graphics made in Unreal Engine 5. Includes competitive and cooperative zombie modes. Investigate what went wrong in the secret operation that unleashed the nightmare.
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Become a member of an elite squad with up to 3 friends and play through the perspective of a bodycam recording. Work for a secret organization to extract a sample from an underground laboratory full of secrets and hazards. Fulfill your mission and survive.
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