Top similar games like Protocol Zero:

Glowfall is a co-op survival shooter for 1–4 players. Head into an abandoned laboratory, fight off failed experiments, grab what loot you can and make it out alive — then sell your haul, gear up and go back in.

Team up with friends in a heart-pounding sci-fi shooter, where every run through dark, procedurally generated bunkers is a fight for survival. Face nightmarish creatures, gather crucial loot, and navigate deadly choices—because in this world, death is permanent.

A multiplayer survival horror game where any player can temporarily mutate into an Anomaly. Scavenge for supplies, fight back against mutated players, and work together to escape. But when your friend mutates, survival becomes a whole new game.

A cooperative horror game where you enter dangerous zones to recover gold and valuable artifacts and make it out alive Work together with other players—or betray them for more money The deeper and more dangerous the area, the greater the reward

In this hyper-realistic multiplayer horror game, one player starts as The Hound, while up to 15 players are human survivors trying to hide. Navigate through hyper-realistic environments, and experience the ultimate survival horror experience in multiplayer.

You're stranded on an island with other players. Your goal is to explore the island, collect as many resources as possible, and then try to escape the island to replenish your camp's stock.

Enter a cursed world in Visions of Evil, a 4v1 online horror game. Explore a forsaken mansion, survive with weapons and artifacts, or become the monster and hunt the intruders. Will you face your fears, or become them?

Escape together or die alone. A relentless creature is hunting you in this intense co-op bodycam horror experience. Communicate. Stay quiet. Survive. Every move matters. Every sound could be your last. Made by one developer.

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!

Infiltrate breached SCP facilities in this tactical co-op horror extraction shooter. Survive surreal anomalies, recover forbidden intel, and escape.. or lose everything. The deeper you go, the stranger and deadlier it gets.

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.

A fast-paced sci-fi shooter where a failed experiment unleashes mutated horrors inside a secret research facility. Armed with experimental weapons, you must fight through swarms of twisted enemies, and survive the collapse of a world-breaking project.

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.

GTFO is a hardcore cooperative horror shooter that throws you from gripping suspense to explosive action in a heartbeat. Stealth, strategy, and teamwork are necessary to survive in your deadly, underground prison. Work together or die together.

Liquidator, you have been re-assigned. Descend into a spatially unstable underground abyss, complete tasks assigned by the C.C.S.R. overseer, scavenge supplies and survive the horrors of the Kaldir conglomerate's negligence alone or with your fellow liquidators.

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.

Deadbait is a VR Horror multiplayer (3vs1) and Story-driven Singleplayer/Coop game where one Player becomes a terrifying Murderer, and 3 Players are Survivors who need to play as a team to escape or overcome the gruesome Nightmare.

A post-Soviet extraction horror shooter set in a ghost town split between reality and its dark reflection, where a creature hunts your heartbeat. Loot, fight, and extract before your pulse gives you away.

10 years of horror. 10 years of jump scares and close calls. 10 years of brutal sacrifices and thrilling escapes. Trapped forever in a realm of eldritch evil where even death is not an escape, four determined Survivors face a bloodthirsty Killer in a vicious game of nerve and wits.

Undying West is a 1-4 player co-op psychological horror set in the Old West, where you and your team infiltrate abandoned locations overrun by deranged robot zombies. Find the terror lurking in the dark—discover its vulnerability, kill it, and escape with your trophy before the town claims you too.

Chasmal Fear is a next-gen FPS action horror game built in Unreal Engine 5 from the perspective of a body camera. Manage limited resources, make smart choices that affect playthrough, and survive monsters that mutate to get stronger. Played as singleplayer or Co-Op with 2 players.

Monstrum 2 is a survival horror game for 2-5 players, set inside the procedurally-generated sea labyrinth - Sparrowlock. Join a team of prisoners evading the terrors within whilst figuring out how to escape, or become one of the deadly monstrosities whose only goal is to hunt them down.

A horror social deduction game where you and your friends take on the roles of police officers on a critical mission. But there is a zombie among you that can transform at will. Can you trust your friends?

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.

In up to four player co-op, form a group of explorers searching for treasure. In this cursed jungle, danger is everywhere and monstrous creatures alter reality. Stay clear-headed and tame the jungle before it devours you…

Light In Blood is a competitive asymmetric action-horror with tactical elements. In intense 1v4 matches, choose to play as a nightmare or a survivor with unique abilities. Explore maps, complete objectives, and interact with the environment to strategize for either hunting or escaping.

Hellcoming is a co-op horror survival game for 1-4 players, who need to clean large areas from hellish abomination with the help of special tools.

'HollowCity' is a PvE top-down extraction shooter set in a ruined city. Solo or with up to 4 players, you must explore various zones and gather survival supplies. Hostile humans aren't the only threats to your life. Fight through monsters born from unknown causes and escape safely.

Night of the Slayers is a first-person asymmetric multiplayer horror game. Survivors search houses on an isolated map, gather parts, and try to start the escape vehicle. Two hunters are controlled by real players: control the night, start the hunt, and stop them from escaping.

An online co-op horror zombie shooter for up to 4 players. Push a shopping cart through supermarkets in a zombie apocalypse, search for high-value items, cover your teammates, and extract safely — but be careful not to hurt each other.

Step into the shoes of a daring live streamer in Viral Fear, a spine-chilling 1 to 4 player co-op adventure. Stealthily maneuver through the woods, destroy ritual skulls, and unravel the secrets of the cult to vanquish the nightmarish entity.

Scavenge for resources, while avoiding lethal robots in 30 MIkes 'til extraction.