Top similar games like Synapse:

Voidseekers is a 1-4 player co-op horror FPS. Shoot, salvage, and survive as you explore corrupted ships in deep space. Get in, take what you can, and destroy the ship to contain the breach, but beware the horrors that seek in the void.

Step into the role of Z1, a mercenary unit to search for evidence of an alien species that is invading a space station, an immersive bodycam style first-person shooter, solo or up to 5 players.

In RED NIGHT, you play as Tess and face a demonic artificial intelligence in a horror anthology game. Each level explores a universal fear through unique and chilling worlds.

Lost Connection 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.

Hardcore first-person co-op horror extraction game. Explore the parallel worlds of the Abyss alone or with a team, gather resources, and make life-or-death decisions that will determine your survival.

Backrooms: Liminal Conflict is a PvP game featuring different factions, a complex multi-layered map, and multiple paths to escape.

A cooperative horror game where you must work to maintain a base to keep monsters from getting in.

CoopRooms is a co-op survival horror game for up to 5 players, set in the endless Backrooms. Take photos and videos to progress—and maybe survive. Just don’t scream... the Entities are listening.

Stay close together and use teamwork to fight through hordes of infected and other mutated freaks while navigating between saferooms.

Dive into horror in Entities. Solo or up to 4-player matches offer dynamic puzzles, relentless entities, and extraction shooter mechanics. Investigate, unlock paths, and survive in dangerous zones as a private operator. Master skill and terror. Are you ready to confront the unknown?

Welcome to the Jurassic arena. You are a prisoner, forced into life or death games against prehistoric dinosaurs for the entertainment of others with up to 3 friends. Enter the arena, solve the puzzle, live another day.

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.

A multiplayer adventure set in the depths of space. Unravel mysteries, strategize for survival, and explore the unknown in this captivating cosmic escapade.

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.

UNEASE is a 1 to 4 players co-op survival horror game presenting an array of episodes with innovative mechanics and different settings.

Eternal is a first-person survival horror shooter where the player is trapped in a sinister mental asylum filled with terrifying entities. Your goal is to unravel the dark secrets of the asylum as you fight to escape this nightmarish place.

Chased by Darkness is a 1-4 players co-op survival horror. Your mission is to face supernatural entities and banish them to the spiritual plane. Explore, fight enemies and don't let the darkness reach you.

Suit up and get ready to rescue survivors of a zombie plague! Team up with friends and form an elite search & rescue unit deploying into an area overrun by zombies. Find survivors and survive against relentless hordes in a co-op zombie survival game experienced through the sturdy lens of a body cam.

Sin Survivor is a wave-based, first-person co-operative or single-player shooter based in a post-apocalyptic world overrun with blood-hungry, satanic demons.

Inside the Backrooms is a horror multiplayer game mixed with different mechanics that will make you spend an intense night with friends. Explore, think, interact, but be careful, it is rumored that there are several entities wishing to find you...

Survive the living dead for as long as you are able! Room Invaderz is a wave-based survival game where you and your comrades kill zombies, earn points, and do your best to upgrade your arsenal to see how long you can delay the inevitable.

6-player co-op survival horror at its finest! Cyborg, monsters and aliens. Free updates

A multiplayer horror where you escape a laboratory at the cost of others.

Basement of Hellish is a survival horror game with zombies in 1st person. Survive and struggle to find a way out in this horror game with tense and dark atmosphere.

Explore your way through a crooked Mansion in the aftermath of an apocalypse. Biological mutants ravaged the Earth! You are responsible for finding crucial information! Fight horrific creatures that lurk around every corner! Find and upgrade your weapons!

UPDATE 28 AVAILABLE - Interstellar Marines is an immersive tactical sci-fi First Person Simulator in the making, offering a unique blend of tactical gameplay, dynamic environments and non-scripted AI. Play Singleplayer or Co-op/PvP on servers around the world.

Team up in a chilling co-op experience, delving into procedurally generated backroom style buildings. Survive together or succumb into the Echoes.

Bloodsworn is a fast-paced, FPS roguelite game set in a blood-soaked, dark dimension. As a fugitive member of a cruel and twisted cult, you must take revenge on them alone or with the help of your friends. Whether you choose blood magic, guns or melee weapons, your path will be lined with blood.

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!

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.

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.

Play alone or team up with others and try to survive while a demon and its minions try to kill you. Your goal is simple. Escape. This might sound easy, but dealing with evil entities is a dangerous business!

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.

Assume the role of Special Forces Sgt. Becket as your routine mission quickly turns into a fight for survival against the wrath of Alma Wade. As Alma's terrifying power surges out of control, your squad is forced to battle through an apocalyptic landscape in search of clues for how to destroy her!

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.

Psycho Reign is a Single or 2 player co-operative online horror puzzle and stealth game where in each level you will be chased by blood thirsty psychos. Look for and solve mini puzzles in order to progress further on the map. Ultimately, find something to fight back...or get chopped up.