Top similar games like Altarium:

LAG KILLS is a single player / online co-op survival horror. Desperate and out of options, you break into what you thought was an empty house but little did you know the owner is home and is now hunting you. LOOT, HIDE, SURVIVE and ESCAPE.

Maid of Sker is a first-person survival horror, set in a remote hotel with a gory and macabre history from Welsh folklore. Brave the nightmares of the Quiet Ones. Do not panic…don’t even breathe!

In Silence is a multiplayer horror game. One player takes on the role of the monster who has hypersensitive hearing abilities and is almost completely blind. The other players(2-6) play as survivors, trying to escape or hunting the monster.

Break into a haunted mansion in this first-person survival horror game. Search for valuable loot while evading deadly ghosts and monsters in single-player or online co-op. Every run is different with random loot, unpredictable threats, and terrifying atmosphere.

SCP: Containment Chaos is a co-op horror survival game for 1-4 players. Become SCP Foundation agents tasked with containing and researching anomalous entities in parallel universes. Solve a variety of unique tasks tailored to each SCP, all while striving to maintain order in the unimaginable chaos.

DEVOUR is a co-op horror survival game for 1-4 players. Stop possessed cultists before they drag you to hell. Run. Scream. Hide. Just don't get caught.

Save Elizy - is a cooperative survival horror game for 1-4 players. Your path is blocked by demons who will leave you without limbs. Run and hide, save Eliza, but remember - don't let yourself be taken to Hell.

You have to escape Granny and Grandpa...You have five days...

Outlast 2 introduces you to Sullivan Knoth and his followers, who left our wicked world behind to give birth to Temple Gate, a town, deep in the wilderness and hidden from civilization. Knoth and his flock are preparing for the tribulations of the end of times and you’re right in the thick of it.

Backrooms: Infinite Halls is a game about investigating and researching the Backrooms, going deeper and deeper down these unending spaces, roaming their halls and avoiding their horrors.

Immerse yourself in a rich Backrooms experience filled with crafting, combat, exploration, and interactions with otherworldly entities. As you progress, a gripping narrative unfolds, revealing secrets hidden within the endless corridors. But be warned danger lurks around every corner.

Explore the surreal dreamworld of the in:Between, face grotesque Atrocities, and rescue lost Hollows in this bizarre blend of cozy and horror. Play solo or with friends in this co-op survival horror, where twisted terrors and unpredictable gameplay keep you on your toes.

Visage is a first-person psychological horror game. Explore a mysterious ever-changing house in a slow-paced, atmospheric world that combines both uncannily comforting and horrifyingly realistic environments, and enjoy a genuinely terrifying experience.

NOROI KAGO: the Grudged Domain is a four-player co-op survival horror game based on "Yokai", supernatural beings from Japanese folklore. Trapped in a cursed domain, you and your companions must work together to endure the curse and find a way to escape, all the while hiding from the roaming yokai.

We Are Things is a tense 2 player co-op horror game. Hide from a bizarre creature on a spaceship that transforms you into objects. Help your friend retake their human form – or transform them into tools that unlock the way out. Explore the ship, find secrets, and survive together!

Labrys is a multiplayer (up to 5v1) horror game where players are thrown into a randomly generated labyrinth against a minotaur. Play as the minotaur or one of up to five human players trying to escape the labyrinth.

Escape The Ayurok is a first person horror-adventure videogame, in which you need to escape from a haunted mansion as quiet as possible, to evade the hideous creature called "The Ayurok". Stealth Mode will be your ally!

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!

Co-op horror (1-4 players). You are sent to explore a mysterious building at night. Find the Moon and try to return alive.

There is reportedly an evil inside that house. Something about an old funeral parlor offering a last chance to talk to their dead loved ones. Plus something about lights, laughter, a girl, missing people, etc... You know the same stuff everyone claims. Take a team, and check the place out.

PUPPETEERS is a spine chilling indie horror game. Play online with your friends or solo in a singleplayer campaign, and try your best to escape the puppets.

𝘚𝘵𝘢𝘺 𝘲𝘶𝘪𝘦𝘵. 𝘚𝘵𝘢𝘺 𝘩𝘪𝘥𝘥𝘦𝘯. 𝘞𝘢𝘵𝘤𝘩 𝘺𝘰𝘶𝘳 𝘴𝘵𝘦𝘱𝘴. 𝘐𝘧 𝘺𝘰𝘶 𝘥𝘰𝘯'𝘵, 𝘙𝘶𝘯. Play as Abigail in her quest to find her grandmother in a cursed forest. Use your spellcasting abilities to hide from various dangers. Will you survive the night?

Goodbye Dr. Sanchez is a first person two player coop horror game where you must escape from the evil Dr. Sanchez’s imprisonment. Explore Sanchez’s domains. Avoid traps and other perils. Communicate with your partner and provide them useful information in order to survive.

Paranormal detective Harry Walters investigates the mysterious case of the missing Gilman family. Following rumors of supernatural events, he visits their abandoned home for clues. He uncovers disturbing memories and a hidden hatch leading to a mysterious area beneath the house.

Claustrophobia offers a scary and dark horror experience filled with blood boiling moments, first you will have to silently move your way through the darkness, until you can pick up arms and discover the truth. Can you figure out what is hiding in this grueling subterranean facility?

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?

FOREWARNED is a 1-4 player co-op survival horror. Delve deep into ancient Egyptian ruins with your team of fellow archaeologists. Investigate phenomena, collect treasure, discover lore, survive danger, and banish the evil that lurks within.

Time For Revenge is a co-op survival horror game for 1-6 player. Get your revenge from the Chef. But be careful, Chef can't see well but he can sense your smell very well. You need to solve the puzzles and complete the tasks to save the children. Escape from the town before Chef gets you.

Enigma Of Forest: 4v1 Werewolf Hunt Multiplayer Horror Game Unveil the mysteries of the darkness and prepare to survive! Enigma Of Forest: Delve into the forest with a group of 5 friends and witness the horrors of nature.

'The Bunker Complex' is a 2 player co-op horror game. Players fight for survival in an old bunker.

Jason is back! Jason Voorhees is unleashed and stalking the grounds of Camp Crystal Lake! Take on the role as Jason Voorhees and Camp Crystal Lake counselors. This is the game you’ve been waiting for; the chance to kill or be killed on Friday the 13th!

Just Work is a first-person horror game set in a massive industrial complex owned by the enigmatic corporation EternaTIMA. You’ve just accepted a suspicious job offer, desperate to make money for your mother’s hospital bills—but this facility holds secrets you were never meant to uncover.

"ESCAPE FROM TOILETS" is a coop horror game 1 to 4 players in a session. Go through strange rooms, escape from toilets that want to kill you and other dangers in the form of challenges and puzzles. Realistic graphics, easy controls and creepy atmosphere will immerse you in the game.

Escape the Backrooms is a 1-4 player co-op horror exploration game. Traverse through eerie backrooms levels while avoiding entities and other dangers to try and escape. Free content updates with new levels and game modes keep the community rewarded.

Once a mad scientist's lab, now an abandoned manor haunted by miscreations. Work as a 1-4 player team in this online co-op, psychological horror game and discover what lurks within. Find a cure before it's too late...

Blood Moon Horror is a 1-8 player co-op survival horror game. Survive the nightmare under the alien-infested moon, navigate the abandoned lunar base, evade extraterrestrial predators, and uncover the dark secrets lurking in the shadows.