A survival horror set in a massive maze. Play solo or 6-player co-op. Scavenge resources to craft gear and survive against terrifying enemies. Unlock unique abilities and find the exit.
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No game lists Inferno Protocol as one of its co-op favourites yet, so here are the closest matches by Steam tags instead.
Tower Inc. is a survival horror of shifting floors, monsters, and betrayal. Collect quotas as fuel to keep the elevator running — without them, you won’t survive the climb. Work with your team… or leave them behind.
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Cooperative survival and horror genre. You and your family have returned to your native land, on which a terrible curse and darkness has fallen. Will you be able to survive in a harsh and dangerous environment and stop the evil? It depends only on you, on your skills and ability to help each other.
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Moonfall Protocol is a co-op survival horror for 1–4 players. Explore the moon, gather evidence of its secrets, and survive a dream that begins to shift into a nightmare filled with hostile creatures and chaos.
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Sewer Raiders is a horror exploration puzzle game where players descend into massive underground tunnels, solve puzzles, scavenge loot, and flood the infested sewer. Every run is unpredictable, hidden paths, and dangers lurking in the dark.
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Necrophoresis is a co-op horror game for 1-4 players. Explore a haunted morgue to find its dark secrets. Use what you can find to make your way through the morgue and find your way out.
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Co-op first-person horror for 1–4 players. You and your friends are trapped in endless liminal backrooms where nothing makes sense. Explore, find keys and almond water, and work together to evade unstoppable monsters and escape.
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Sent to find a missing billionaire on a remote island, you find yourself in a cannibal-infested hellscape. Craft, build, and struggle to survive, alone or with friends, in this terrifying new open-world survival horror simulator.
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Unhuman Nightmare is a 4 player online co-op game where a team of thieves want to steal items from haunted places. What they don't know is that the places are full of traps set by ghosts. Chances are, they'll not escape alive...
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NIVO is a cooperative suspense game where players investigate and eliminate anomalies across unique maps. Observe your surroundings, identify reality-distorting events, and restore order before the environment spirals out of control.
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A multiplayer horror where you escape a laboratory at the cost of others.
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