Top similar games like Thalassomania:

OverNight is a multiplayer co-op Ghost Hunting horror with multiple Ghosts per session. Explore some of the most haunted locations with your friends, using a variety of paranormal equipment, engage in rituals, and attempt haunted communications to connect with the other side.

Phasmophobia is a 4 player online co-op psychological horror. Paranormal activity is on the rise and it’s up to you and your team to use all the ghost-hunting equipment at your disposal in order to gather as much evidence as you can.

After a dark ritual bound an ancient board game as a vessel for a demonic spirit, it is rediscovered by a group of friends. As players take turns, the game enacts consequences in the real world, introducing physical dangers and hostile entities. Survive its trials and uncover its dark history.

Voiceless is a cooperative horror game that can be played alone or with up to 4 players. Your goal is to survive making as little noise as possible, because any sound, including your microphone, can be heard by the Maniac, who is eager to catch you and your friends.

Use the specialized equipment at your disposal to locate & log as many paranormal events as possible. Decipher the ingredients needed for your ritual and try to exorcise any demons within, but be warned. Any incorrect ingredients and you may never leave! Can be played solo or with up to 3 friends.

Remnant Records is a horror investigation game for 1 to 4 players. Explore places haunted by the dead, survive elaborate and unique ghosts and find out what happened to them through thousands of generated stories.

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.

The Backrooms - Nightmare Dimension is a Co-op online horror game with up to 4 players, where you and your friends take on the roles of soldiers who are part of the SCP Foundation with the mission to eliminate the mysterious entities found in the infamous place called "the Backrooms".

HUNT ME is a co-op horror survival game for 1-4 players. Gather the ingredients for the ritual, weaken the threat and banish it. Be careful, you're also the prey!

Deadly Broadcast is a co-op horror and survival game that can be played with 1-4 players. As a Famous Streamer, you have to stay alive, but at the same time you should stream the paranormal events in the cursed places to gather more donations and more viewers. Don’t die! Don’t cut the Broadcast!

Holy Purge is a co-op horror game where players play as priests who exorcise demons in various scenarios.

Who is Ethan? is a 1-4 player online co-op psychological horror game. Explore the dark halls of the hospital, gather clues with your team, uncover the mystery, and survive. But be careful… Something is watching you.

Paranormal Investigators is a 4 player co-op horror. You and your team are the hosts of a local TV show and explore abandoned houses with paranormal activity. You must make a video report and survive until dawn.

Gather your courage and face the ghost danger.Clean the curses and hunt the ghost!

Trapped in darkness, hunted down—your only way out is the right keycard. In this intense co-op multiplayer horror game, you and up to 4 friends must search terrifying maps, evade deadly villains, and escape before time runs out. No weapons, just wits. Can you survive?

This is a Ghost is a ghost-hunting psychological horror game. Using your equipment, track down paranormal activity and gather evidence to identify the entity, then banish it from this world! Solo and online co-op play for up to 4 players. 👻

Breach Signal is a 1-5 Player Co-op Psychological Horror. Enter a special unit operating for the agency; lead expeditions into strange places and investigate mysterious anomalies that threaten our reality.

"Lost Lullabies - The Orphanage Chronicles" is a Co-Op horror game set in 1980, inspired by the real stories of an orphanage ruined by a fire in 1960 Lowell. Playable with 1-4 players, the goal is to identify and expel malevolent spirits alone or with your team.

Exorcist Simulator is an immersive multiplayer horror game that will captivate players and immerse them in a world of supernatural events and dangers.

Blessed Curse is a 4-player, online co-op, psychological horror game. Take on a rumor you've recieved of a haunted location in Japan. At the scene utilize your entity-hunting equipment to gather evidence and figure out what might be residing there.

Investigate, explore, and solve paranormal phenomena using technology as well as your own esoteric abilities, alone or with friends.

Enigma Manor is a 1-4 player co-op survival horror game. Navigate your way through the procedurally generated manor, fend off monsters, solve puzzles and find a way to escape.

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.

An online co-op horror game featuring unique playable characters and RPG mechanics. Exorcise ghosts using your special abilities and tools while surviving the supernatural onslaught

Wishes of Dawn is a horror game where you and your team of four work together to track down ghosts and other supernatural entities. Investigate these beings from different civilizations using items from their cultures and collect evidence to uncover the truth.

Demonsomnia is a CO-OP multiplayer bodycam horror game focused on the impact of nuclear reactions. Radiation has spread everywhere, so put on your gas mask. Your goal is to activate the nuclear reactor device and escape without being caught by mutants.

Damned is a randomized online horror game for up to 5 players (4 survivors and 1 monster). You’ll be able to play as one of four people trapped in different haunted places (hotels, hospitals, etc).

Reports of paranormal activity have been creeping up across the nation. You and your team have been instructed to investigate. Explore and solve puzzles, all whilst avoiding deadly horrors from the Otherplane.

The Doorway Effect is a 1-4-player co-op psychological horror roguelike. Explore the inner world of a dying man's mind, racing through door after door in a labyrinth of nightmares. Encounter traumas incarnate, and discover the secrets locked within. If you can survive long enough...

Cursed Night is a multiplayer horror game for 1-5 players. Use your magic abilities to defeat the devil, or become the devil and seek revenge. Find talismans, collect power, release spirits, or choose the dark side and kill everyone.

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.

Join a clandestine team of paranormal investigators working to seal Breaches caused by a mysterious Entity. Use your devices to analyze, understand, and suppress the event while evading detection. It delivers a tense multiplayer experience where teamwork is your lifeline in an ever-shifting reality.

In a post-apocalyptic world overrun by monsters due to an unknown virus, some people have managed to survive. During these times, an organization formed by elite members of society emerged, fighting against the monsters and aiming to restore the world to its original state.

Ghost Haunt is a thrilling multiplayer horror game that pits players together as either the Ghost Hunter or the Ghost. Four brave Ghost Hunters face off against one cunning Ghost in a chilling battle for survival.

Phylakterion is a 1-4 player online co-op horror game in which you’ll enter different locations in search of a possessed vessel. Search, Identify, and Destroy the vessel and the entity inhabiting it – before the entity finds YOU!

Trapped in a mysterious hotel filled with dark secrets, you must survive the deadly puzzles of a sinister ghost with their loyal assistant. Choose your role: outwit the hunters as a survivor or haunt the intruders as the ghost. Every game brings new chills and challenges.