Top similar games like Biohazard Protocol:

The post-apocalypse. When some are trying to survive in a new world, others join the detective agency "Peace Dice", which searches for evidence of mutants. Go on a raid and don't come back empty-handed!

Detour is an online co-op horror game featuring procedural generation, proximity chat, winding mazes and scary monsters. You and up to 3 of your friends are dropped into a maze. It is unknown how you got there, but your goal is clear: survive and escape.

“COLLAPSE COMPANY” is a round-based roguelike action FPS for 1–4 players exploring shifting underground dungeons. Your goal is to activate the deep Particle Acceleration Reactor and escape before time runs out. Gather resources, upgrade gear, and push into riskier zones.

An online co-op horror game where you and your crew hunt monsters inside a massive WALKER. Use your environment, items, or anything at your disposal to protect your WALKER.

Dive with up to four players into the Depths. DELVERS is a first-person PvE co-op adventure set in a dark fantasy world with a distinct retro pixelated visual style, featuring procedurally generated dungeons that reshape themselves every time you enter.

Treasure Cove is a co-op survival horror adventure where you and your friends set out to explore a mysterious island in search of lost treasures. With proximity voice chat, realistic visuals, and terrifying creatures lurking in the darkness, every expedition can quickly become a fight for survival.

PANICORE is a survival horror game that mixes permadeath, AI monsters and a co-op experience up to 5 players (4 players in demo). Try to escape and don't get caught, but beware: they don't only hear your steps, but also your voice.

A 4v1 asymmetrical horror where survivors escape by solving shifting puzzles. Use always-on proximity voice to manage sanity, but speak too loudly and the monster will find you.

YOUR BODY IS YOUR WEAKNESS. A four-player co-op horror game that puts you in the shoes of the chief scientists of a research facility. Your sole objective is to carry out the self-destruct plan and escape the facility.

A 4-player cooperative survival horror where you’ll explore the terrifying depths of the internet alongside your team of analog tech enthusiasts. Use old-school technology to purge glitches, preserve your digital sanity, and survive the strange monsters lurking in the deep web.

A terrifying online horror game where one player becomes an impostor monster. Disguise, hunt, and destroy your friends — or work together to survive. Mimicry is a fast-paced, multiplayer fun game full of deception, fear, and chaos.

A light horror roguelike adventure through a post apocalyptic world, with airships.

Fight your way through a post-war nuclear world by scavenging supplies, building your rocket, and taking on bosses! Explore a procedurally generated open world and find items to help you escape.

A co-op horror adventure set in a fantasy world where up to 4 players explore procedurally generated castles and dungeons, scavenging treasures for the King. Beware of traps, and what else might lurk in the shadows.

A co-op horror rescue game for 2-4 players. Locate injured hikers in dangerous forests and carry them with your friends to the rescue point before you get eaten.

Shoot to move. Miss and fall. A chaotic physics-based movement game where your weapon is your only way forward.

G.H.O.S.T. — a tactical co-op for 1-4 players. Your main objective: track the Ghost via anomalies and capture it before it collects 7 runes to open the portal. Use Devastators, secure torsional artifacts, and remember—you are there to stop the invasion, not to become its victim.

University 33 is a 1-4 player co-op anomaly detection simulator. Observe your surroundings with unwavering focus: follow the protocol, identify the irregularities, and choose the correct path to reach Floor 33. One lapse in judgment restarts the cycle.

Backrooms #999999999 is a singleplayer/4 player co-op horror exploration game. Unlock the puzzles, survive the entities, escape the deadly geometry and try to reach the final level in one piece. Good luck, wanderer!

Explore a sprawling cave network with your friends in search of fun occult loot for the Crypt Club! Find fun-to-use items, torn pages of a tome, and even a monster lurking within the depths.

A raccoon co-op horror extraction game. Infiltrate procedural ruins, loot everything and extract the relic. Mammon, the Greed Demon, is watching… Stay away from his curse!

A 1-4 player coop horror experience. Find your way through everchanging environments to gather precious treasures for your kidnappers. The more you gather the longer you will survive.

Subterranauts is a 1-6 player multiplayer horror game with proximity voice chat and terrifying creatures. Your job is to complete assignments by gathering scrap for the Association of Scrap Allocation. Work together with your team to complete assignments, earn company Bucks, and survive!

In Burning Out, a multiplayer maze-escape game, you and up to 3 others are trapped in a dark maze, armed only with fire. Light your way with your torch to unveil the maze’s secrets, all while trying to keep contact with prox chat. (it is highly recommended to play with others)

An online co-op horror game with up to 6 players. Collect potions and spells, use them wisely against enemies for protection or fun.

A co-op horror where you and your friends (if applicable) explore a seemingly infinite expanse of eerie creature-infested liminal spaces, armed only with a glorified vacuum and specialized equipment to help you locate and extract a rare substance in the name of science.

Alone or up to 6 players, deliver pizzas to the survivors of a city where an oppressive mist has turned almost everyone into monstrous creatures.

A co-op extraction horror for 1-4 players where you survive nuclear wastelands on a train. Scavenge scrap for fuel and supplies, and use voice mechanics to stay alive.

Thousands of players leave notes to guide—or troll each other through a weekly dungeon to reach FLOOR 100. Play with up to 4 friends, but work together as a community to reach FLOOR 100! A shorter, daily changing dungeon is also available!