Altarium is a first-person, asymmetric PVP Co-Op horror game that can be played by 1-5 players together. Players can choose to play as either the victim or the evil character. Get ready, choose your role, shape your destiny, and survive!
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No game lists Altarium as one of its co-op favourites yet, so here are the closest matches by Steam tags instead.
Step into nightmares with your team or on your own. In a 1–4 player online co-op experience, complete missions, escape deadly creatures, and find your way out before it’s too late. Different missions, dangers, and escape methods await you on every map.
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Inside the Labs is a 1-4 player online co-op survival horror game. Take on the role of teenage explorers as you venture into abandoned labs, following reports of failed human experiments.
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Carnival Hunt is a 5v1 first-person asymmetrical horror game. Five wind-up Bunnies must work together, manage their noisy keys, and find a way to escape an ever-changing carnival world while one player hunts them as the Carnival Monster.
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ShutterOut is a 1-4 player co-op horror game where all kinds of threats await. Record as much as you can, and make it out alive!
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Silent Rain is a challenging and immersive co-op horror game, for 1 to 4 players. Explore abandoned locations, solve puzzles, and gather information while trying to survive the threats lurking in the dark. How many tries will it take you to master your fear?
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Cursed Despair offers a chilling experience where you and your friends will face a mysterious monster, plunging into deep despair. Gather the necessary items to survive, perform the ritual, and stand firm amidst the darkness.
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INOUT is a cooperative horror game for 1-4 players. For years, the locals have been afraid of an old mansion in Madyland. A possessed maniac and an ancient evil have settled here. Become a member of a team of exorcists and expel the evil force!
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First-perspective Co-op horror game (up to 4 online players). A terrible incident has struck a Joseon-era village. Become an investigator and survive the cursed night.
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Red Barrels invites you to experience mind-numbing terror, this time with friends. Whether you go through the trials alone or in teams, if you survive long enough and complete the therapy, Murkoff will happily let you leave… but will you be the same?
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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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